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<?php
/*
* edih_x12file_class.php
*
* Copyright 2014 Kevin McCormick Longview, Texas
*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 or later. You should have
* received a copy of the GNU General Public License along with this program;
* if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* <http://opensource.org/licenses/gpl-license.php>
*
*
* @link: https://www.open-emr.org
* @author: Kevin McCormick
* @package: OpenEMR
* @subpackage: ediHistory
*/
/* ********* project notes =================
* determine GET and POST array elements
* process new files -- type and csv data values
* display tables -- links with GET and POST
* find files -- find transactions
* format display
*
* ==========================================
*/
/*********** php code here ****************************************************************/
/**
* Class to read EDI X12 files in healthcare setting
*
* It is assumed that EDI X12 files will have mime-type text/plain; charset=us-ascii
*
* initialize with file path or as empty object, e.g.
* $x12_file = new edih_x12_file(filepath); segment array and envelope array, no file text
* $x12_file = new edih_x12_file(filepath, false); no segment or envelope array, no file text
* $x12_file = new edih_x12_file(filepath, false, true); no segment or envelope array, yes file text
* or
* $x12_file = new edih_x12_file(); empty object, ' _x12_ ' methods available if file text supplied as method argument
*
* The properties filename, type, version, valid, isx12, hasGS, hasST, and delimiters should be available
* if the valid filepath is provided when creating the object.
*
* @param string $filepath default = ''
* @param bool $mk_segs default = true
* @param bool $text default = false
* @return bool|string true for empty object "ovgis" for validated x12
*/
class edih_x12_file
{
// properties
private $filepath = '';
private $filename = '';
private $type = '';
private $version = '';
private $text = '';
private $length = 0;
private $valid = false;
private $isx12 = false;
private $hasGS = false;
private $hasST = false;
private $message = array();
private $delimiters = array();
private $segments = array();
private $envelopes = array();
//
private $constructing = false;
//
private $gstype_ar = array('HB' => '271', 'HS' => '270', 'HR' => '276', 'HN' => '277',
'HI' => '278', 'HP' => '835', 'FA' => '999', 'HC' => '837');
//
function __construct($file_path = '', $mk_segs = true, $text = false)
{
//
if ($file_path === '') {
return true;
}
//
if (is_file($file_path) && is_readable($file_path)) {
$this->filepath = trim($file_path);
$this->filename = basename($this->filepath);
$f_text = file_get_contents($this->filepath);
//
$testval = ($f_text) ? $this->edih_x12_scan($f_text) : '';
$this->valid = ( strpos($testval, 'v') ) ? true : false;
$this->isx12 = ( strpos($testval, 'i') ) ? true : false;
$this->hasGS = ( strpos($testval, 'g') ) ? true : false;
$this->hasST = ( strpos($testval, 's') ) ? true : false;
//
if ($this->valid) {
$this->constructing = true;
$this->text = ($text) ? $f_text : '';
$this->length = ($f_text) ? strlen($f_text) : 0;
if ($this->isx12) {
$this->delimiters = $this->edih_x12_delimiters(substr($f_text, 0, 126));
$this->version = substr($f_text, 84, 5);
if ($mk_segs) {
$this->segments = $this->edih_x12_segments($f_text);
if (is_array($this->segments) && count($this->segments)) {
$this->envelopes = $this->edih_x12_envelopes();
$this->type = $this->edih_x12_type();
} else {
$this->message[] = 'edih_x12_file: error in creating segment array ' . text($this->filename) . PHP_EOL;
}
} else {
// read file contents to try and determine x12 type
$this->type = $this->edih_x12_type($f_text);
}
}
}
} else {
// invalid file path
$this->message[] = 'edih_x12_file: invalid file path ' . text($file_path);
}
$this->constructing = false;
return $this->valid;
}
/*
* function to support empty object and '_x12_' functions called with supplied file text
*
* @param string $file_text
* @param bool return x12 type
* @param bool return delimiters
* @param bool return segments
* @return array array['filetext'] and maybe ['type'] ['$delimiters'] ['segments']
*/
private function edih_file_text($file_text, $type = false, $delimiters = false, $segments = false)
{
//
$ret_ar = array();
if (!$file_text || is_string($file_text) == false) {
$this->message[] = 'edih_file_text(): invalid argument';
return $ret_ar;
}
// do verifications
$v = $this->edih_x12_scan($file_text);
if (!strpos($v, 's')) {
$this->message[] = 'edih_file_text(): failed scan of file text (' . text($v) . ')';
return $ret_ar;
}
//
$this->constructing = true;
//
if ($type) {
$ret_ar['type'] = $this->edih_x12_type($file_text);
}
if ($delimiters) {
$ret_ar['delimiters'] = $this->edih_x12_delimiters(substr($file_text, 0, 126));
}
if ($segments) {
$ret_ar['segments'] = $this->edih_x12_segments($file_text);
}
//
$this->constructing = false;
//
return $ret_ar;
}
/*
* functions to return properties
*/
public function classname()
{
return get_class($this);
}
public function edih_filepath()
{
return $this->filepath;
}
public function edih_filename()
{
return $this->filename;
}
public function edih_type()
{
return $this->type;
}
public function edih_version()
{
return $this->version;
}
public function edih_text()
{
return $this->text;
}
public function edih_length()
{
return $this->length;
}
public function edih_valid()
{
return $this->valid;
}
public function edih_isx12()
{
return $this->isx12;
}
public function edih_hasGS()
{
return $this->hasGS;
}
public function edih_hasST()
{
return $this->hasST;
}
public function edih_delimiters()
{
return $this->delimiters;
}
public function edih_segments()
{
return $this->segments;
}
public function edih_envelopes()
{
return $this->envelopes;
}
/**
* message statements regarding object or from functions
* formatted as html
*
* @return string
*/
public function edih_message()
{
$str_html = '<p>' . PHP_EOL;
if (count($this->message)) {
foreach ($this->message as $msg) {
$str_html .= text($msg) . '<br />' . PHP_EOL;
}
$str_html .= PHP_EOL . '</p>' . PHP_EOL;
} else {
$str_html = '';
}
return $str_html;
}
/**
* Numeric type of x12 HC file associated with GS01 code
*
* @param string $gs01
* @return string|bool
*/
public function edih_gs_type($gs01)
{
$tpky = strtoupper($gs01);
return ( isset($this->gstype_ar[$tpky]) ) ? $this->gstype_ar[$tpky] : false;
}
/**
* Use PHP FileInfo to check mime type and then scan for unwanted characters
* check for Non-basic ASCII character and <%, <asp:, <?, ${, #!, <scr (any other evil script indicators?)
* basically allows A-Z a-z 0-9 !"#$%&'()*+,-./:;<=>?@[\]^_`{|}~ and newline carriage_return
* This function accepts the following mime-type: text/plain; charset=us-ascii
*
* The return string can be 'ovigs' ov - valid, igs - ISA GS ST
*
* @param string $filetext the file contents
* @return string zero length on failure
*/
public function edih_x12_scan($filetext)
{
$hasval = '';
$ftxt = ( $filetext && is_string($filetext) ) ? trim($filetext) : $filetext;
// possibly $ftxt = trim($filetext, "\x00..\x1F") to remove ASCII control characters
// remove newlines
if (strpos($ftxt, PHP_EOL)) {
$ftxt = str_replace(PHP_EOL, '', $ftxt);
}
$flen = ( $ftxt && is_string($ftxt) ) ? strlen($ftxt) : 0;
if (!$flen) {
$this->message[] = 'edih_x12_scan: zero length or invalid file text';
return $hasval;
}
$de = '';
$dt = '';
// use finfo php class
if (class_exists('finfo')) {
$finfo = new finfo(FILEINFO_MIME);
$mimeinfo = $finfo->buffer($ftxt);
if (strncmp($mimeinfo, 'text/plain; charset=us-ascii', 28) !== 0) {
$this->message[] = 'edih_x12_scan: ' . text($this->filename) . ' : invalid mime info: <br />' . text($mimeinfo);
//
return $hasval;
}
}
//
if (preg_match('/[^\x20-\x7E\x0A\x0D]|(<\?)|(<%)|(<asp)|(#!)|(\$\{)|(<scr)|(script:)/is', $ftxt, $matches, PREG_OFFSET_CAPTURE)) {
//
$this->message[] = 'edih_x12_scan: suspect characters in file ' . text($this->filename) . '<br />' .
' character: ' . text($matches[0][0]) . ' position: ' . text($matches[0][1]);
//
return $hasval;
}
$hasval = 'ov'; // valid
// check for required segments ISA GS ST; assume segment terminator is last character
if (substr($ftxt, 0, 3) === 'ISA') {
$hasval = 'ovi';
$de = substr($ftxt, 3, 1);
$dt = substr($ftxt, -1);
if (strpos($ftxt, $dt . 'GS' . $de, 0)) {
$hasval = 'ovig';
}
if (strpos($ftxt, $dt . 'ST' . $de, 0)) {
$hasval = 'ovigs';
}
}
return $hasval;
}
/**
* read the GS segments in file contents to determine x12 type, or, if the
* object was created with a file path and envelopes, from the GS envelope array
*
* @param string $file_text optional contents of an x12 file
* @return string the x12 type, e.g. 837, 835, 277, 999, etc.
*/
public function edih_x12_type($file_text = '')
{
$tpstr = '';
$tp_tmp = array();
$f_text = '';
$delims = array();
$delimarg = '';
$dt = ( isset($this->delimiters['t']) ) ? $this->delimiters['t'] : '';
$de = ( isset($this->delimiters['e']) ) ? $this->delimiters['e'] : '';
//
if ($file_text) {
// For when '_x12_' function is called with file contents as argument
if (!$this->constructing) {
$vars = $this->edih_file_text($file_text, false, true, false);
$f_text = $file_text;
$dt = ( isset($vars['delimiters']['t']) ) ? $vars['delimiters']['t'] : '';
$de = ( isset($vars['delimiters']['e']) ) ? $vars['delimiters']['e'] : '';
} elseif ($this->text) {
// called in initial construction, delimiters already created if x12 file
$f_text =& $this->text;
if (!$dt) {
$this->message[] = 'edih_x12_type: not x12 file';
return $tpstr;
}
} else {
// called after file scan, but no segment array exists
$f_text =& $file_text;
if (!$dt) {
$delims = $this->edih_x12_delimiters(substr($f_text, 0, 126));
$dt = ( isset($delims['t']) ) ? $delims['t'] : '';
$de = ( isset($delims['e']) ) ? $delims['e'] : '';
}
}
if (!$f_text) {
$this->message[] = 'edih_x12_type: failed scan of file content';
return $tpstr;
}
} elseif (isset($this->envelopes['GS'])) {
// No argument, so if envelopes exist, take values from there
foreach ($this->envelopes['GS'] as $gs) {
$tp_tmp[] = $gs['type'];
}
} elseif (count($this->segments)) {
// No argument and no envelopes, so scan segments
if (!$de) {
$de = substr(reset($this->segments), 3, 1);
}
foreach ($this->segments as $seg) {
if (strncmp($seg, 'GS' . $de, 3) == 0) {
$gs_ar = explode($de, $seg);
if (array_key_exists($gs_ar[1], $this->gstype_ar)) {
//$tp_tmp[] = $this->gstype_ar[$gs_ar[1]];
$tp_tmp[] = $gs_ar[1];
} else {
$tp_tmp[] = $gs_ar[1];
$this->message[] = 'edih_x12_type: unknown x12 type ' . text($gs_ar[1]);
}
}
}
} else {
$this->message[] = 'edih_x12_type: no content to determine x12 type';
return $tpstr;
}
// $f_text has content only if file contents supplied or in text property
if ($f_text) {
// use regular expression instead of strpos($f_text, $dt.'GS'.$de)
$pcrepattern = '/GS\\' . $de . '(?:HB|HS|HR|HI|HN|HP|FA|HC)\\' . $de . '/';
$pr = preg_match_all($pcrepattern, $f_text, $matches, PREG_OFFSET_CAPTURE);
//
if ($pr && count($matches)) {
foreach ($matches as $m) {
//$gspos1 = $m[0][1];
$gs_ar1 = explode($de, $m[0][0]);
if (array_key_exists($gs_ar1[1], $this->gstype_ar)) {
//$tp_tmp[] = $this->gstype_ar[$gs_ar1[1]];
$tp_tmp[] = $gs_ar1[1];
} else {
$tp_tmp[] = $gs_ar1[1];
$this->message[] = 'edih_x12_type: unknown x12 type ' . text($gs_ar1[1]);
}
}
} else {
$this->message[] = 'edih_x12_type: did not find GS segment ';
}
/* **** this replaced by preg_match_all() above ******
}
// scan GS segments
$gs_str = $dt.'GS'.$de;
$gs_pos = 1;
$gse_pos = 2;
while ($gs_pos) {
$gs_pos = strpos($f_text, $gs_str, $gs_pos);
if ($gs_pos) {
$gsterm = strpos($f_text, $dt, $gs_pos+1);
$gsseg = trim(substr($f_text, $gs_pos+1, $gsterm-$gs_pos-1));
//$gs_ar = explode($de, substr($f_text, $gs_pos+1, $gsterm-$gs_pos-1) );
$this->message[] = 'edih_x12_type: '.$gsseg.PHP_EOL;
$gs_ar = explode($de, $gsseg);
if ( array_key_exists($gs_ar[1], $this->gstype_ar) ) {
$tp_tmp[] = $this->gstype_ar[$gs_ar[1]];
} else {
$tp_tmp[] = $gs_ar[1];
$this->message[] = 'edih_x12_type: unknown x12 type '.$gs_ar[1];
}
$gs_pos = $gsterm + 1;
}
}
******************* */
}
// x12 type information collected
if (count($tp_tmp)) {
$tp3 = array_values(array_unique($tp_tmp));
// mixed should not happen -- concatenated ISA envelopes of different types?
$tpstr = ( count($tp3) > 1 ) ? 'mixed|' . implode("|", $tp3) : $tp3[0];
//$this->message[] = 'edih_x12_type: ' . $tpstr;
} else {
$this->message[] = 'edih_x12_type: error in identifying type ';
return false;
}
return $tpstr;
}
/**
* Extract x12 delimiters from the ISA segment
*
* There are obviously easier/faster ways of doing this, but we go character by character.
* The value returned is empty on error, otherwise:
* <pre>
* array('t'=>segment terminator, 'e'=>element delimiter,
* 's'=>sub-element delimiter, 'r'=>repetition delimiter)
* </pre>
*
* @param string $isa_str110 first n>=106 characters of x12 file
* @return array array or empty on error
*/
public function edih_x12_delimiters($isa_str110 = '')
{
//
$delim_ar = array();
if (!$isa_str110 && $this->text) {
$isa_str = substr($this->text, 0, 106);
} else {
$isa_str = trim($isa_str110);
}
$isalen = strlen($isa_str);
if ($isalen >= 106) {
if (substr($isa_str, 0, 3) != 'ISA') {
// not the starting characters
$this->message[] = 'edih_x12_delimiters: text does not begin with ISA';
return $delim_ar;
}
/* Extract delimiters using the prescribed positions.
* -- problem is possibly mangled files
* $t_ar['e'] = substr($isa_str, 3, 1);
* $t_ar['r'] = substr($isa_str, 82, 1);
* $t_ar['s'] = substr($isa_str, 104, 1);
* $t_ar['t'] = substr($isa_str, 105, 1);
*/
} else {
$this->message[] = 'edih_x12_delimiters: ISA string too short' . PHP_EOL;
return $delim_ar;
}
$s = '';
$delim_ct = 0;
$de = substr($isa_str, 3, 1); // ISA*
for ($i = 0; $i < $isalen; $i++) {
if ($isa_str[$i] == $de) {
// element count incremented at end of loop
// repetition separator in version 5010
if ($delim_ct == 11) {
$dr = substr($s, 1, 1);
}
if ($delim_ct == 12) {
if (strpos($s, '501') === false) {
$dr = '';
}
}
//
if ($delim_ct == 15) {
$ds = substr($isa_str, $i + 1, 1);
$dt = substr($isa_str, $i + 2, 1);
}
if ($delim_ct == 16) {
break;
}
$s = $isa_str[$i]; // $elem_delim;
$delim_ct++;
} else {
$s .= $isa_str[$i];
}
}
// there are 16 elements in ISA segment
if ($delim_ct < 16) {
// too few elements -- probably did not get delimiters
$this->message[] = "edih_x12_delimiters: too few elements in ISA string";
return $delim_ar;
}
//
$delim_ar = array('t' => $dt, 'e' => $de, 's' => $ds, 'r' => $dr);
//
return $delim_ar;
}
/**
* Create a multidimensional array of edi envelope info from object segments.
* Useful for slicing and dicing. The ['ST'][$stky]['trace'] value is used only for 835
* or 999 type files and the ['ST'][$stky]['acct'][i] array will have multiple values
* likely only for 835, 271, and 277 types, because response from a payer will have
* multiple transactions in the ST-SE envelope while OpenEMR probably will place each
* transaction in its own ST-SE envelope for 270 and 837 types.
*
* The ['start'] and ['count'] values are for use in php function array_slice()
* The numeric keys of the segments array begin at 1 and the ['start'] value is one less
* than the actual key because array_slice() offset is zero-based.
*
* <pre>
* ['ISA'][$icn]=>['start']['count']['sender']['receiver']['icn']['gscount']['date']
* ['GS'][$gs_ct]=>['start']['count']['gsn']['icn']['sender']['date']['stcount']['type']
* ['ST'][$stky]=>['start']['count']['stn']['gsn']['icn']['type']['trace']['acct']
* ['ST'][$stky]['acct'][i]=>CLM01
* ['ST'][$stky]['bht03'][i]=>BHT03
* </pre>
*
* @return array array as shown above or empty on error
*/
public function edih_x12_envelopes($file_text = '')
{
// produce an array of envelopes and positions
$env_ar = array();
$de = '';
if ($file_text) {
// presume need for file scan and delimiters
$vars = $this->edih_file_text($file_text, false, true, true);
$segment_ar = (isset($vars['segments']) ) ? $vars['segments'] : array();
$de = (isset($vars['delimiters']) ) ? $vars['delimiters']['e'] : '';
//$segment_ar = $this->edih_x12_segments($file_text);
if (empty($segment_ar) || !$de) {
$this->message[] = 'edih_x12_envelopes: invalid file text';
return $env_ar;
}
} elseif (count($this->segments)) {
$segment_ar = $this->segments;
if (isset($this->delimiters['e'])) {
$de = $this->delimiters['e'];
} else {
$de = (substr(reset($segment_ar), 0, 3) == 'ISA') ? substr(reset($segment_ar), 3, 1) : '';
}
} else {
$this->message[] = 'edih_x12_envelopes: no text or segments';
return $env_ar;
}
if (!$de) {
$this->message[] = 'edih_x12_envelopes: invalid delimiters';
return $env_ar;
}
//
// get the segment array bounds
$seg_first = (reset($segment_ar) !== false) ? key($segment_ar) : '1';
$seg_last = (end($segment_ar) !== false) ? key($segment_ar) : count($segment_ar) + $seg_first;
if (reset($segment_ar) === false) {
$this->message[] = 'edi_x12_envelopes: reset() error in segment array';
return $env_ar;
} else {
$seg_ct = $seg_last + 1;
}
// variables
$seg_txt = '';
$sn = '';
$st_type = '';
$st_ct = 0;
$isa_ct = 0;
$iea_ct = 0;
$gs_st_ct = 0;
$trnset_seg_ct = 0;
$st_segs_ct = 0;
$isa_segs_ct = 0;
$chk_trn = false;
$trncd = '2';
//$id278 = false;
$ta1_icn = '';
$seg_ar = array();
// the segment IDs we look for
$chk_segs = array('ISA', 'GS' . $de, 'TA1', 'ST' . $de, 'BHT', 'HL' . $de, 'TRN', 'CLP', 'CLM', 'SE' . $de, 'GE' . $de, 'IEA');
//
for ($i = $seg_first; $i < $seg_ct; $i++) {
// counters
$isa_segs_ct++;
$st_segs_ct++;
//
$seg_text = $segment_ar[$i];
$sn = substr($seg_text, 0, 4);
// skip over segments that are not envelope boundaries or identifiers
if (!in_array(substr($sn, 0, 3), $chk_segs)) {
continue;
}
// create the structure array
if (strncmp($sn, 'ISA' . $de, 4) == 0) {
$seg_ar = explode($de, $seg_text);
$icn = trim($seg_ar[13]);
//
$env_ar['ISA'][$icn]['start'] = strval($i - 1);
$env_ar['ISA'][$icn]['sender'] = trim($seg_ar[6]);
$env_ar['ISA'][$icn]['receiver'] = trim($seg_ar[8]);
$env_ar['ISA'][$icn]['icn'] = $icn;
$env_ar['ISA'][$icn]['date'] = trim($seg_ar[9]); // YYMMDD
$env_ar['ISA'][$icn]['version'] = trim($seg_ar[12]);
//
$isa_segs_ct = 1;
$isa_ct++;
continue;
}
//
if (strncmp($sn, 'GS' . $de, 3) == 0) {
$seg_ar = explode($de, $seg_text);
$gs_start = strval($i - 1);
$gsn = $seg_ar[6];
// GS06 could be used to id 997/999 response, if truly unique
// cannot index on $gsn due to concatenated ISA envelopes and non-unique
$gs_ct = isset($env_ar['GS']) ? count($env_ar['GS']) : 0;
//
$env_ar['GS'][$gs_ct]['start'] = $gs_start;
$env_ar['GS'][$gs_ct]['gsn'] = $gsn;
$env_ar['GS'][$gs_ct]['icn'] = $icn;
$env_ar['GS'][$gs_ct]['sender'] = trim($seg_ar[2]);
$env_ar['GS'][$gs_ct]['date'] = trim($seg_ar[4]);
$env_ar['GS'][$gs_ct]['srcid'] = '';
// to verify type of edi transaction
if (array_key_exists($seg_ar[1], $this->gstype_ar)) {
$gs_fid = $this->gstype_ar[$seg_ar[1]];
$env_ar['GS'][$gs_ct]['type'] = $seg_ar[1];
} else {
$gs_fid = 'NA';
$env_ar['GS'][$gs_ct]['type'] = 'NA';
$this->message[] = 'edih_x12_envelopes: Unknown GS type ' . text($seg_ar[1]);
}
continue;
}
// expect 999 TA1 before ST
if (strncmp($sn, 'TA1' . $de, 4) == 0) {
$seg_ar = explode($de, $seg_text);
if (isset($seg_ar[1]) && $seg_ar[1]) {
$ta1_icn = $seg_ar[1];
} else {
$this->message[] = 'edih_x12_envelopes: Error in TA1 segment response ICN';
}
//TA1*ISA13ICN*ISA09DATE*ISA10TIME*ACKCode*NoteCode~
continue;
}
//
if (strncmp($sn, 'ST' . $de, 3) == 0) {
$seg_ar = explode($de, $seg_text);
$stn = $seg_ar[2];
$st_type = $seg_ar[1];
$st_start = strval($i);
$st_segs_ct = 1;
$st_ct = isset($env_ar['ST']) ? count($env_ar['ST']) : 0;
//
$env_ar['ST'][$st_ct]['start'] = strval($i - 1);
$env_ar['ST'][$st_ct]['count'] = '';
$env_ar['ST'][$st_ct]['stn'] = $seg_ar[2];
$env_ar['ST'][$st_ct]['gsn'] = $gsn;
$env_ar['ST'][$st_ct]['icn'] = $icn;
$env_ar['ST'][$st_ct]['type'] = $seg_ar[1];
$env_ar['ST'][$st_ct]['trace'] = '0';
$env_ar['ST'][$st_ct]['acct'] = array();
$env_ar['ST'][$st_ct]['bht03'] = array();
// GS file id FA can be 999 or 997
if ($gs_fid != $st_type && strpos($st_type, '99') === false) {
$this->message[] = "edih_x12_envelopes: ISA " . text($icn) . ", GS " . text($gsn . " " . $gs_fid) . " ST " . text($stn . " " . $st_type) . " type mismatch" . PHP_EOL;
}
//
continue;
}
//
if (strpos('|270|271|276|277|278', $st_type)) {
//
if (strncmp($sn, 'BHT' . $de, 4) == 0) {
$seg_ar = explode($de, $seg_text);
if (isset($seg_ar[2])) {
$trncd = ($seg_ar[2] == '13') ? '1' : '2';
// 13 = request, otherwise assume response
} else {
$this->message[] = 'edih_x12_envelopes: missing BHT02 type element';
}
if (isset($seg_ar[3]) && $seg_ar[3]) {
$env_ar['ST'][$st_ct]['bht03'][] = $seg_ar[3];
} else {
$this->message[] = 'edih_x12_envelopes: missing BHT03 identifier';
}
}
if (strncmp($sn, 'HL' . $de, 3) == 0) {
$seg_ar = explode($de, $seg_text);
if (isset($seg_ar[3]) && $seg_ar[3]) {
$chk_trn = ( strpos('|22|23|PT', $seg_ar[3]) ) ? true : false;
} else {
$this->message[] = 'edih_x12_envelopes: missing HL03 level element';
}
continue;
}
if ($chk_trn && strncmp($sn, 'TRN' . $de, 4) == 0) {
$seg_ar = explode($de, $seg_text);
if (isset($seg_ar[1]) && $seg_ar[1] == $trncd) {
$env_ar['ST'][$st_ct]['acct'][] = (isset($seg_ar[2])) ? $seg_ar[2] : '';
$chk_trn = false;
} else {
$this->message[] = 'edih_x12_envelopes: missing TRN02 type identifier element';
}
continue;
}
}
//
if ($st_type == '835') {
if (strncmp($sn, 'TRN' . $de, 4) == 0) {
$seg_ar = explode($de, $seg_text);
if (!isset($seg_ar[2]) || !isset($seg_ar[3])) {
$this->message[] = 'error in 835 TRN segment ' . text($seg_text);
}
$env_ar['ST'][$st_ct]['trace'] = (isset($seg_ar[2])) ? $seg_ar[2] : "";
// to match OpenEMR billing parse file name
if (isset($seg_ar[4])) {
$env_ar['GS'][$gs_ct]['srcid'] = $seg_ar[4];
} else {
$env_ar['GS'][$gs_ct]['srcid'] = (isset($seg_ar[3])) ? $seg_ar[3] : "";
}
//
continue;
}
if (strncmp($sn, 'CLP' . $de, 4) == 0) {
$seg_ar = explode($de, $seg_text);
if (isset($seg_ar[1])) {
$env_ar['ST'][$st_ct]['acct'][] = $seg_ar[1];
} else {
$this->message[] = 'error in 835 CLP segment ' . text($seg_text);
}
continue;
}
}
//
if ($st_type == '837') {
if (strncmp($sn, 'BHT' . $de, 4) == 0) {
$seg_ar = explode($de, $seg_text);
if (isset($seg_ar[3]) && $seg_ar[3]) {
$env_ar['ST'][$st_ct]['bht'][] = $seg_ar[3];
} else {
$this->message[] = 'edih_x12_envelopes: missing BHT03 identifier';
}
}
//
if (strncmp($sn, 'CLM' . $de, 4) == 0) {
$seg_ar = explode($de, $seg_text);
if (isset($seg_ar[1])) {
$env_ar['ST'][$st_ct]['acct'][] = $seg_ar[1];
} else {
$this->message[] = 'error in 837 CLM segment ' . text($seg_text);
}
continue;
}
}
//
if (strncmp($sn, 'SE' . $de, 3) == 0) {
// make sure no lingering toggle
$id278 = false;
$chk_trn = false;
//
$seg_ar = explode($de, $seg_text);
$se_num = $seg_ar[2];
$env_ar['ST'][$st_ct]['count'] = strval($seg_ar[1]);
// 999 case: expect TA1 before ST, so capture batch icn here
if ($st_type == '999' || $st_type == '997') {
if (isset($ta1_icn) && strlen($ta1_icn)) {
$env_ar['ST'][$st_ct]['trace'] = $ta1_icn;
$ta1_icn = '';
}
}
// errors
if ($se_num != $stn) {
$this->message[] = 'edih_x12_envelopes: ST-SE number mismatch ' . text($stn) . ' ' . text($se_num) . ' in ISA ' . text($icn) . PHP_EOL;
}
if (intval($seg_ar[1]) != $st_segs_ct) {
$this->message[] = 'edih_x12_envelopes: ST-SE segment count mismatch ' . text($st_segs_ct) . ' ' . text($seg_ar[1]) . ' in ISA ' . text($icn) . PHP_EOL;
}
continue;
}
//
if (strncmp($sn, 'GE' . $de, 3) == 0) {
$seg_ar = explode($de, $seg_text);
$env_ar['GS'][$gs_ct]['count'] = $i - $gs_start - 1;
$env_ar['GS'][$gs_ct]['stcount'] = trim($seg_ar[1]); // ST count
$gs_st_ct += $seg_ar[1];
//
if ($seg_ar[2] != $env_ar['GS'][$gs_ct]['gsn']) {
$this->message[] = 'edih_x12_envelopes: GS-GE identifier mismatch' . PHP_EOL;
}
if ($gs_ct === 0 && ($seg_ar[1] != count($env_ar['ST']))) {
$this->message[] = 'edih_x12_envelopes: GS count of ST mismatch' . PHP_EOL;
} elseif ($gs_st_ct != count($env_ar['ST'])) {
$this->message[] = 'edih_x12_envelopes: GS count of ST mismatch' . PHP_EOL;
}
continue;
}
//
if (strncmp($sn, 'IEA' . $de, 4) == 0) {
$seg_ar = explode($de, $seg_text);
$env_ar['ISA'][$icn]['count'] = $isa_segs_ct;
$env_ar['ISA'][$icn]['gscount'] = $seg_ar[1];
$iea_ct++;
//
if (count($env_ar['GS']) != $seg_ar[1]) {
$this->message[] = 'edih_x12_envelopes: GS count mismatch in ISA ' . text($icn) . PHP_EOL;
$gsct = count($env_ar['GS']);
$this->message[] = 'GS group count: ' . text($gsct) . ' IEA01: ' . text($seg_ar[1]) . ' segment: ' . text($seg_text);
}
if ($env_ar['ISA'][$icn]['icn'] !== $seg_ar[2]) {
$this->message[] = 'edih_x12_envelopes: ISA-IEA identifier mismatch ISA ' . text($icn) . ' IEA ' . text($seg_ar[2]);
}
if ($iea_ct == $isa_ct) {
$trnset_seg_ct += $isa_segs_ct;
//if ( $i+1 != $trnset_seg_ct ) {
if ($i != $trnset_seg_ct) {
$this->message[] = 'edih_x12_envelopes: IEA segment count error ' . text($i) . ' : ' . text($trnset_seg_ct);
}
} else {
$this->message[] = 'edih_x12_envelopes: ISA-IEA count mismatch ISA ' . text($isa_ct) . ' IEA ' . text($iea_ct);
}
continue;
}
}
//
return $env_ar;
}
/**
* Parse x12 file contents into array of segments.
*
* @uses edih_x12_delimiters()
* @uses edih_x12_scan()
*
* @param string $file_text
* @return array array['i'] = segment, or empty on error
*/
public function edih_x12_segments($file_text = '')
{
$ar_seg = array();
// do verifications
if ($file_text) {
if (!$this->constructing) {
// need to validate file
$vars = $this->edih_file_text($file_text, false, true, false);
$f_str = $file_text;
$dt = ( isset($vars['delimiters']['t']) ) ? $vars['delimiters']['t'] : '';
} else {
$f_str = $file_text;
if (isset($this->delimiters['t'])) {
$dt = $this->delimiters['t'];
} else {
$delims = $this->edih_x12_delimiters(substr($f_str, 0, 126));
$dt = ( isset($delims['t']) ) ? $delims['t'] : '';
}
}
} elseif ($this->text) {
$f_str = $this->text;
if (isset($this->delimiters['t'])) {
$dt = $this->delimiters['t'];
} else {
$delims = $this->edih_x12_delimiters(substr($f_str, 0, 126));
$dt = ( isset($delims['t']) ) ? $delims['t'] : '';
}
} else {
$this->message[] = 'edih_x12_segments: no file text';
return $ar_seg;
}
// did we get the segment terminator?
if (!$dt) {
$this->message[] = 'edih_x12_segments: invalid delimiters';
return $ar_seg;
}
// OK, now initialize variables
$seg_pos = 0; // position where segment begins
$seg_end = 0;
$seg_ct = 0;
$moresegs = true;
// could test this against simple $segments = explode($dt, $f_str)
while ($moresegs) {
// extract each segment from the file text
$seg_end = strpos($f_str, $dt, $seg_pos);
$seg_text = substr($f_str, $seg_pos, $seg_end - $seg_pos);
$seg_pos = $seg_end + 1;
$moresegs = strpos($f_str, $dt, $seg_pos);
$seg_ct++;
// we trim in case there are line or carriage returns
$ar_seg[$seg_ct] = trim($seg_text);
}
//
return $ar_seg;
}
/**
* extract the segments representing a transaction for CLM01 pt-encounter number
* note: there may be more than one in a file, all matching are returned
* 27x transactions will have unique BHT03 that could be used as the claimid argument
*
* return_array[i] => transaction segments array
* return_array[i][j] => particular segment string
*
* @param string $clm01 837 CLM01 or BHT03 from 277
* @param string $stn ST number -- optional, limit search to that ST-SE envelope
* @param string $filetext optional file contents
* @return array multidimensional array of segments or empty on failure
*/
public function edih_x12_transaction($clm01, $stn = '', $filetext = '')
{
//
$ret_ar = array();
//
if (!$clm01) {
$this->message[] = 'edih_x12_transaction: invalid argument';
return $ret_ar;
}
//
$de = '';
$tp = '';
$seg_ar = array();
$env_ar = array();
// select the data to search
if ($filetext && !$this->constructing) {
$vars = $this->edih_file_text($filetext, true, true, true);
$tp = ( isset($vars['type']) ) ? $vars['type'] : $tp;
$de = ( isset($vars['delimiters']['e']) ) ? $vars['delimiters']['e'] : $de;
$seg_ar = ( isset($vars['segments']) ) ? $vars['segments'] : $seg_ar;
//$env_ar = $vars['envelopes']; // probably faster without envelopes in this case
} elseif (count($this->segments)) {
// default created object
$seg_ar = $this->segments;
if (count($this->delimiters)) {
$de = $this->delimiters['e'];
} else {
$de = (substr(reset($segment_ar), 0, 3) == 'ISA') ? substr(reset($segment_ar), 3, 1) : '';
}
$tp = ($this->type) ? $this->type : $this->edih_x12_type();
$env_ar = ( isset($this->envelopes['ST']) ) ? $this->envelopes : $env_ar;
} elseif ($this->text) {
// object with file text, but no processing
$tp = $this->edih_x12_type();
$seg_ar = ( $tp ) ? $this->edih_x12_segments() : $seg_ar;
if (count($seg_ar)) {
$de = substr(reset($seg_ar), 3, 1);
}
} else {
$this->message[] = 'edih_x12_transaction: invalid search data';
return $ret_ar;
}
if (!count($seg_ar)) {
$this->message[] = 'edih_x12_transaction: invalid segments';
return $ret_ar;
}
if (!$de) {
$this->message[] = 'edih_x12_transaction: invalid delimiters';
return $ret_ar;
}
//array('HB'=>'271', 'HS'=>'270', 'HR'=>'276', 'HI'=>'278',
// 'HN'=>'277', 'HP'=>'835', 'FA'=>'999', 'HC'=>'837');
if (substr($tp, 0, 5) == 'mixed') {
$tp = substr($tp, -2);
}
if (!strpos('|HB|271|HS|270|HR|276|HI|278|HN|277|HP|835|FA|999|HC|837', $tp)) {
$this->message[] = 'edih_x12_transaction: wrong edi type for transaction search ' . text($tp);
return $ret_ar;
}
$idx = 0;
$is_found = false;
$slice = array();
$srch_ar = array();
$sl_idx = 0;
// there may be several in same ST envelope with the same $clm01, esp. 835
// we will get each set of relevant transaction segments in foreach() below
if (count($env_ar)) {
foreach ($env_ar['ST'] as $st) {
if (strlen($stn) && $st['stn'] != $stn) {
continue;
}
if (isset($st['acct']) && count($st['acct'])) {
$ky = array_search($clm01, $st['acct']);
if ($ky !== false) {
$srch_ar[$idx]['array'] = array_slice($seg_ar, $st['start'], $st['count'], true);
$srch_ar[$idx]['start'] = $st['start'];
$srch_ar[$idx]['type'] = $st['type'];
$idx++;
}
}
}
}
// if not identified in envelope search, use segments
if (!count($srch_ar)) {
$srch_ar[0]['array'] = $seg_ar;
$srch_ar[0]['start'] = 0; // with array_slice() the index is absolute zero base
$srch_ar[0]['type'] = $tp;
}
// verify we have type
if ($srch_ar[0]['type'] == 'NA' || !$srch_ar[0]['type']) {
$this->edih_message('edih_x12_transaction(): invalid file type ' . text($srch_ar[0]['type']));
return $ret_ar;
}
// segments we check
$test_id = array('TRN','CLM','CLP','ST' . $de,'BHT','REF','LX' . $de,'PLB','SE' . $de);
//
foreach ($srch_ar as $srch) {
$idx = $srch['start'] - 1; // align index to segments array offset
$type = (string)$srch['type'];
$is_found = false;
$idval = '';
$idlen = 1;
//
foreach ($srch['array'] as $key => $seg) {
$idx++;
//
$test_str = substr($seg, 0, 3);
if (!in_array($test_str, $test_id, true)) {
continue;
}
//
// the opening ST segment should be in each search array,
// so type and search values can be determined here.
if (strncmp($seg, 'ST' . $de, 3) == 0) {
$stseg = explode($de, $seg);
$type = ($type) ? $type : (string)$stseg[1];
//
$idval = ( strpos('|HN|277|HB|271', $type) ) ? 'TRN' . $de . '2' . $de . $clm01 : '';
$idval = ( strpos('|HR|276|HS|270', $type) ) ? 'TRN' . $de . '1' . $de . $clm01 : $idval;
$idval = ( strpos('|HI|278', $type) ) ? 'REF' . $de . 'EJ' . $de . $clm01 : $idval;
$idval = ( strpos('|HC|837', $type) ) ? 'CLM' . $de . $clm01 . $de : $idval;
$idval = ( strpos('|HP|835', $type) ) ? 'CLP' . $de . $clm01 . $de : $idval;
$idlen = strlen($idval);
//
continue;
}
//array('HB'=>'271', 'HS'=>'270', 'HR'=>'276', 'HI'=>'278',
// 'HN'=>'277', 'HP'=>'835', 'FA'=>'999', 'HC'=>'837');
// these types use the BHT segment to begin transactions
if (strpos('|HI|278|HN|277|HR|276|HB|271|HS|270|HC|837', $type)) {
//
if (strncmp($seg, 'BHT' . $de, 4) === 0) {
$bht_seg = explode($de, $seg);
$bht_pos = $idx;
//$bht_pos = $key;
if ($is_found && isset($slice[$sl_idx]['start'])) {
$slice[$sl_idx]['count'] = $idx - $slice[$sl_idx]['start'];
//$slice[$sl_idx]['count'] = $key - $slice[$sl_idx]['start'];
$is_found = false;
$sl_idx++;
} elseif (strcmp($clm01, $bht_seg[3]) === 0) {
// matched by BHT03 identifier
$is_found = true;
$slice[$sl_idx]['start'] = $bht_pos;
}
continue;
}
//
if (strncmp($seg, $idval, $idlen) === 0) {
// matched by clm01 identifier (idval)
$is_found = true;
$slice[$sl_idx]['start'] = $bht_pos;
continue;
}
}
//
if ($type == 'HP' || $type == '835') {
if (strncmp($seg, 'CLP' . $de, 4) === 0) {
if (strncmp($seg, $idval, $idlen) === 0) {
if ($is_found && isset($slice[$sl_idx]['start'])) {
$slice[$sl_idx]['count'] = $idx - $slice[$sl_idx]['start'];
//$slice[$sl_idx]['count'] = $key - $slice[$sl_idx]['start'];
$sl_idx++;
}
$is_found = true;
$slice[$sl_idx]['start'] = $idx;
//$slice[$sl_idx]['start'] = $key;
} else {
if ($is_found && isset($slice[$sl_idx]['start'])) {
$slice[$sl_idx]['count'] = $idx - $slice[$sl_idx]['start'];
//$slice[$sl_idx]['count'] = $key - $slice[$sl_idx]['start'];
$is_found = false;
$sl_idx++;
}
}
continue;
}
// LX segment is often used to group claim payment information
// we do not capture TS3 or TS2 segments in the transaction
if (strncmp($seg, 'LX' . $de, 3) === 0) {
if ($is_found && isset($slice[$sl_idx]['start'])) {
$slice[$sl_idx]['count'] = $idx - $slice[$sl_idx]['start'];
//$slice[$sl_idx]['count'] = $key - $slice[$sl_idx]['start'];
$is_found = false;
$sl_idx++;
}
continue;
}
// PLB segment is part of summary/trailer in 835
// not part of the preceeding transaction
if (strncmp($seg, 'PLB' . $de, 4) === 0) {
if ($is_found && isset($slice[$sl_idx]['start'])) {
$slice[$sl_idx]['count'] = $idx - $slice[$sl_idx]['start'];
//$slice[$sl_idx]['count'] = $key - $slice[$sl_idx]['start'];
$is_found = false;
$sl_idx++;
}
continue;
}
}
// SE will always mark end of transaction segments
if (strncmp($seg, 'SE' . $de, 3) === 0) {
if ($is_found && isset($slice[$sl_idx]['start'])) {
$slice[$sl_idx]['count'] = $idx - $slice[$sl_idx]['start'];
//$slice[$sl_idx]['count'] = $key - $slice[$sl_idx]['start'];
$is_found = false;
$sl_idx++;
}
}
} // end foreach($srch['array'] as $seg)
} // end foreach($srch_ar as $srch)
//
if (count($slice)) {
foreach ($slice as $sl) {
$ret_ar[] = array_slice($seg_ar, $sl['start'], $sl['count'], true);
}
}
//
return $ret_ar;
}
/**
* get the segment(s) with a particular ID, such as CLP, NM1, etc.
* return is array
* array[i] => matching segment string
*
* @param string $segmentID such as NM1, CLP, STC, etc.
* @param string $srchStr optional string contained in segment
* @param array $seg_array optional supplied array of segments to search
* @return array
*/
public function edih_get_segment($segmentID, $srchStr = '', $seg_array = '')
{
//
$ret_ar = array();
$seg_ar = array();
$segid = ( strlen($segmentID) ) ? trim($segmentID) : '';
//
$srch = ( strlen($srchStr) ) ? $srchStr : '';
//
if (!$segid) {
$this->message[] = 'edih_get_segment(): missing segment ID';
return $ret_ar;
}
//
$de = ( isset($this->delimiters['e']) ) ? $this->delimiters['e'] : '';
$dt = ( isset($this->delimiters['t']) ) ? $this->delimiters['t'] : '';
//
// segment array from edih_x12_transaction() is two dimension
if (is_array($seg_array) && count($seg_array)) {
if (isset($seg_array[0]) && is_array($seg_array[0])) {
foreach ($seg_array as $ar) {
$seg_ar = array_merge($seg_ar, $ar);
}
} else {
$seg_ar = $seg_array;
}
} elseif (count($this->segments)) {
$seg_ar = $this->segments;
} elseif ($this->text) {
if (!$de) {
$delims = $this->edih_x12_delimiters(substr($this->text, 0, 126));
$dt = ( isset($delims['t']) ) ? $delims['t'] : '';
$de = ( isset($delims['e']) ) ? $delims['e'] : '';
}
if (!$de || !$dt) {
$this->message[] = 'edih_get_segment() : unable to get delimiters';
return $ret_ar;
}
//
$segsrch = ($segid == 'ISA') ? $segid . $de : $dt . $segid . $de;
$seg_pos = 1;
$see_pos = 2;
while ($seg_pos) {
$seg_pos = strpos($this->text, $segsrch, $seg_pos);
$see_pos = strpos($this->text, $dt, $seg_pos + 1);
if ($seg_pos) {
$segstr = trim(substr($this->text, $seg_pos, $see_pos - $seg_pos), $dt);
if ($srch) {
if (strpos($segstr, $srch) !== false) {
$ret_ar[] = $segstr;
}
} else {
$ret_ar[] = $segstr;
}
$seg_pos = $see_pos + 1;
}
}
}
//
if (count($seg_ar)) {
$cmplen = strlen($segid . $de);
foreach ($seg_ar as $key => $seg) {
if (strncmp($seg, $segid . $de, $cmplen) === 0) {
if ($srch) {
if (strpos($seg, $srch) !== false) {
$ret_ar[$key] = $seg;
}
} else {
$ret_ar[$key] = $seg;
}
}
}
} else {
$this->message[] = 'edih_get_segment() : no segments or text content available';
}
//
return $ret_ar;
}
/**
* Get a slice of the segments array
* Supply an array with one or more of the following keys and values:
*
* ['trace'] => trace value from 835(TRN02) or 999(TA101) x12 type
* ['ISA13'] => ISA13
* ['GS06'] => GS06 (sconsider also 'ISA13')
* ['ST02'] => ST02 (condider also 'ISA13' and 'GS06')
* ['keys'] => true to preserve segment numbering from original file
*
* The return value will be an array of one or more segments.
* The 'search' parameter results in one or more segments containing
* the search string. The
* @param array note: all element values except 'keys' are strings
* @return array
*/
function edih_x12_slice($arg_array, $file_text = '')
{
//
$ret_ar = array();
$f_str = '';
// see what we have
if (!is_array($arg_array) || !count($arg_array)) {
// debug
$this->message[] = 'edih_x12_slice() invalid array argument';
return $ret_ar;
}
//
if ($file_text) {
// need to validate file edih_file_text($file_text, $type=false, $delimiters=false, $segments=false)
$vars = $this->edih_file_text($file_text, true, true, false);
if (is_array($vars) && count($vars)) {
$f_str = $file_text;
$dt = ( isset($vars['delimiters']['t']) ) ? $vars['delimiters']['t'] : '';
$de = ( isset($vars['delimiters']['e']) ) ? $vars['delimiters']['e'] : '';
$ft = ( isset($vars['type']) ) ? $vars['type'] : '';
//$seg_ar = ( isset($vars['segments']) ) ? $vars['segments'] : '';
//$env_ar = $this->edih_x12_envelopes($f_str);
} else {
$this->message[] = 'edih_x12_slice() error processing file text';
// debug
//echo $this->edih_message().PHP_EOL;
return $ret_ar;
}
} elseif (count($this->segments) && count($this->envelopes) && count($this->delimiters)) {
$seg_ar = $this->segments;
$env_ar = $this->envelopes;
$dt = $this->delimiters['t'];
$de = $this->delimiters['e'];
$ft = $this->type;
} else {
$this->message[] = 'edih_x12_slice() object missing needed properties';
// debug
//echo $this->edih_message().PHP_EOL;
return $ret_ar;
}
// initialize search variables
$trace = '';
$stn = '';
$gsn = '';
$icn = '';
$prskeys = false;
//
foreach ($arg_array as $key => $val) {
switch ((string)$key) {
case 'trace':
$trace = (string)$val;
break;
case 'ST02':
$stn = (string)$val;
break;
case 'GS06':
$gsn = (string)$val;
break;
case 'ISA13':
$icn = (string)$val;
break;
case 'keys':
$prskeys = (bool)$val;
break;
}
}
//
if ($trace && strpos('|HP|FA', $ft) === false) {
$this->message[] = 'edih_x12_slice() incorrect type [' . text($ft) . '] for trace';
return $ret_ar;
}
//
if ($f_str) {
$srchstr = '';
if ($icn) {
$icnpos = strpos($f_str, $de . $icn . $de);
if ($icnpos === false) {
// $icn not found
$this->message[] = 'edih_x12_slice() did not find ISA13 ' . text($icn);
// debug
//echo $this->edih_message().PHP_EOL;
return $ret_ar;
} elseif ($icnpos < 106) {
$isapos = 0;
} else {
$isapos = strrpos($f_str, $dt . 'ISA' . $de, ($icnpos - strlen($f_str))) + 1;
}
$ieapos = strpos($f_str, $de . $icn . $dt, $isapos);
$ieapos = strpos($f_str, $dt, $ieapos) + 1;
$segidx = ($prskeys) ? substr_count($f_str, $dt, 0, $isapos + 2) + 1 : 0;
//
$srchstr = substr($f_str, $isapos, $ieapos - $isapos);
}
if ($gsn) {
$srchstr = ($srchstr) ? $srchstr : $f_str;
$gspos = strpos($srchstr, $de . $gsn . $de);
if ($gspos === false) {
// $gsn not found
$this->message[] = 'edih_x12_slice() did not find GS06 ' . text($gsn);
return $ret_ar;
} else {
$gspos = strrpos(substr($srchstr, 0, $gspos), $dt) + 1;
}
$gepos = strpos($srchstr, $dt . 'GE' . $dt, $gspos);
$gepos = strpos($srchstr, $dt, $gepos + 1) + 1;
$segidx = ($prskeys) ? substr_count($f_str, $dt, 0, $gspos + 2) + 1 : 0;
//
$srchstr = substr($srchstr, $gspos, $gepos - $gspos);
}
if ($stn) {
$srchstr = ($srchstr) ? $srchstr : $f_str;
$sttp = $this->gstype_ar[$ft];
$seg_st = $dt . 'ST' . $de . $sttp . $de . $stn ;
$seg_se = $dt . 'SE' . $de;
// $segpos = 1;
$stpos = strpos($srchstr, $seg_st);
if ($stpos === false) {
// $stn not found
$this->message[] = 'edih_x12_slice() did not find ST02 ' . text($stn);
return $ret_ar;
} else {
$stpos = $stpos + 1;
}
$sepos = strpos($srchstr, $seg_se, $stpos);
$sepos = strpos($srchstr, $dt, $sepos + 1);
$segidx = ($prskeys) ? substr_count($f_str, $dt, 0, $stpos + 2) + 1 : 0;
//
$srchstr = substr($srchstr, $stpos, $sepos - $stpos);
}
if ($trace) {
//
$trpos = strpos($f_str, $de . $trace);
if ($trpos === false) {
// $icn not found
$this->message[] = 'edih_x12_slice() did not find trace ' . text($trace);
return $ret_ar;
}
$sttp = $this->gstype_ar[$ft];
$seg_st = $dt . 'ST' . $de . $sttp . $de;
$stpos = strrpos($f_str, $seg_st, ($trpos - strlen($f_str)));
$sepos = strpos($f_str, $dt . 'SE' . $de, $stpos);
$sepos = strpos($f_str, $dt, $sepos + 1);
//
$segidx = ($prskeys) ? substr_count($f_str, $dt, 0, $st_pos + 2) + 1 : 0;
$srchstr = substr($f_str, $stpos + 1, $sepos - $stpos);
}
// if we have a match, the $srchstr should have the desired segments
if ($trace || $icn || $gsn || $stn) {
if ($srchstr) {
$seg_ar = explode($dt, $srchstr);
// to keep segment numbers same as original file
foreach ($seg_ar as $seg) {
$ret_ar[$segidx] = $seg;
$segidx++;
}
return $ret_ar;
} else {
$this->message[] = 'edih_x12_slice() error creating substring';
return $ret_ar;
}
}
// file_text not supplied, check for object values
} elseif (!($seg_ar && $env_ar && $dt && $de && $ft)) {
// debug
$this->message[] = 'edih_x12_slice() error is processing file';
return $ret_ar;
}
// file_text not supplied, use object values
if ($trace) {
foreach ($env_ar['ST'] as $st) {
if ($st['trace'] == $trace) {
// have to add one to the count to capture the SE segment so html_str has data
// when called from edih_835_payment_html function in edih_835_html.php 4-25-17 SMW
$ret_ar = array_slice($seg_ar, $st['start'], $st['count'] + 1, $prskeys);
break;
}
}
} elseif ($icn && !($stn || $gsn)) {
if (isset($env_ar['ISA'][$icn])) {
$ret_ar = array_slice($seg_ar, $env_ar['ISA'][$icn]['start'], $env_ar['ISA'][$icn]['count'], $prskeys);
}
} elseif ($gsn && !$stn) {
foreach ($env_ar['GS'] as $gs) {
if ($icn) {
if (($gs['icn'] == $icn) && ($gs['gsn'] == $gsn)) {
$ret_ar = array_slice($seg_ar, $gs['start'], $gs['count'], $prskeys);
break;
}
} else {
if ($gs['gsn'] == $gsn) {
$ret_ar = array_slice($seg_ar, $gs['start'], $gs['count'], $prskeys);
break;
}
}
}
} elseif ($stn) {
// ;
foreach ($env_ar['ST'] as $st) {
//
if ($icn) {
if ($gsn) {
if ($st['icn'] == $icn && $st['gsn'] == $gsn && $st['stn'] == $stn) {
$ret_ar = array_slice($seg_ar, $st['start'], $st['count'], $prskeys);
break;
}
} else {
if ($st['icn'] == $icn && $st['stn'] == $stn) {
$ret_ar = array_slice($seg_ar, $st['start'], $st['count'], $prskeys);
break;
}
}
} elseif ($gsn) {
if ($st['gsn'] == $gsn && $st['stn'] == $stn) {
$ret_ar = array_slice($seg_ar, $st['start'], $st['count'], $prskeys);
break;
}
} elseif ($st['stn'] == $stn) {
//
$ret_ar = array_slice($seg_ar, $st['start'], $st['count'], $prskeys);
break;
}
}
} else {
$this->message[] = 'edih_x12_slice() no file text or invalid array argument keys or values';
}
//
if (!count($ret_ar)) {
$this->message[] = 'edih_x12_slice() no match';
}
return $ret_ar;
}
// end class edih_x12_file
}