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90 lines
2.2 KiB
90 lines
2.2 KiB
2 years ago
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<?php
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/** @package verysimple::Util */
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/**
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* Utility for catching PHP errors and converting them to an exception
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* that can be caught at runtime
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*
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* @example <pre>
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* try
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* {
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* ExceptionThrower::Start();
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* // @TODO PHP command here
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* ExceptionThrower::Stop();
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* }
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* catch (Exception $ex)
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* {
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* ExceptionThrower::Stop();
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* // handle or re-throw exception
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* }</pre>
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* @package verysimple::Util
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* @author Jason Hinkle
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* @copyright 1997-2008 VerySimple, Inc.
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* @license http://www.gnu.org/licenses/lgpl.html LGPL
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* @version 1.0
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*/
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class ExceptionThrower
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{
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static $IGNORE_DEPRECATED = true;
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/**
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* Start redirecting PHP errors
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*
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* @param int $level
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* PHP Error level to catch (Default = E_ALL & ~E_DEPRECATED)
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*/
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static function Start($level = null)
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{
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if ($level == null) {
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if (defined("E_DEPRECATED")) {
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$level = E_ALL & ~ E_DEPRECATED;
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} else {
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// php 5.2 and earlier don't support E_DEPRECATED
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$level = E_ALL;
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self::$IGNORE_DEPRECATED = true;
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}
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}
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set_error_handler(array (
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"ExceptionThrower",
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"HandleError"
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), $level);
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}
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/**
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* Stop redirecting PHP errors
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*/
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static function Stop()
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{
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restore_error_handler();
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}
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/**
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* Fired by the PHP error handler function.
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* Calling this function will
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* always throw an exception unless error_reporting == 0. If the
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* PHP command is called with @ preceeding it, then it will be ignored
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* here as well.
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*
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* @param string $code
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* @param string $string
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* @param string $file
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* @param string $line
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* @param string $context
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*/
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static function HandleError($code, $string, $file, $line, $context = '')
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{
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// ignore supressed errors
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if (error_reporting() == 0) {
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return;
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}
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if (self::$IGNORE_DEPRECATED && strpos($string, "deprecated") === true) {
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return true;
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}
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throw new Exception($string . " in " . basename($file) . " at line $line", $code);
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}
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}
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