note 94902 added to function.get-called-class
| From: | jurgensdotdutoitatgmaildotcom at osu1 dot php dot net | Date: | Wed, 02 Dec 2009 06:57:22 +0000 |
| Subject: | note 94902 added to function.get-called-class | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-163473@lists.php.net to get a copy of this message | ||
Just a update on laurence+nospam at sol1 dot com dot au's get_called_class function. This adds
support for call_user_func and call_user_func_array:
<?php
/********************************
* Retro-support of get_called_class()
* Tested and works in PHP 5.2.4
* Original http://www.sol1.com.au/
* Update http://backend-php.net/
********************************/
if (!function_exists('get_called_class')) {
function get_called_class($bt = false, $l = 1) {
if (!$bt) $bt = debug_backtrace();
if (!isset($bt[$l])) throw new Exception("Cannot find called class -> stack level too
deep.");
if (!isset($bt[$l]['type'])) {
throw new Exception ('type not set');
} else {
switch ($bt[$l]['type']) {
case '::':
if (array_key_exists('file', $bt[$l])) {
$lines = file($bt[$l]['file']);
$i = 0;
$callerLine = '';
do {
$i++;
$callerLine = $lines[$bt[$l]['line'] - $i] . $callerLine;
} while (stripos($callerLine,$bt[$l]['function']) === false);
preg_match('/([a-zA-Z0-9\_]+)::'.$bt[$l]['function'].'/',
$callerLine,
$matches
);
if (!isset($matches[1])) {
// must be an edge case.
throw new Exception ("Could not find caller class: originating method call is
obscured.");
}
switch ($matches[1]) {
case 'self':
case 'parent':
return get_called_class($bt, $l + 1);
break;
default:
return $matches[1];
break;
}
} else if (
array_key_exists('function', $bt[$l + 1])
&& in_array($bt[$l + 1]['function'], array('call_user_func',
'call_user_func_array'))
&& array_key_exists(0, $bt[$l + 1]['args'])
&& is_array($bt[$l + 1]['args'][0])
) {
return current($bt[$l + 1]['args'][0]);
}
// won't get here.
case '->':
switch ($bt[$l]['function']) {
case '__get':
// edge case -> get class of calling object
if (!is_object($bt[$l]['object'])) throw new Exception ("Edge case fail. __get
called on non object.");
return get_class($bt[$l]['object']);
break;
default:
return $bt[$l]['class'];
break;
}
default:
throw new Exception ("Unknown backtrace method type");
break;
}
}
}
}
----
Server IP: 69.147.83.197
Probable Submitter: 196.210.132.252
----
Manual Page -- http://www.php.net/manual/en/function.get-called-class.php
Edit -- https://master.php.net/note/edit/94902
Del: integrated -- https://master.php.net/note/delete/94902/integrated
Del: useless -- https://master.php.net/note/delete/94902/useless
Del: bad code -- https://master.php.net/note/delete/94902/bad+code
Del: spam -- https://master.php.net/note/delete/94902/spam
Del: non-english -- https://master.php.net/note/delete/94902/non-english
Del: in docs -- https://master.php.net/note/delete/94902/in+docs
Del: other reasons-- https://master.php.net/note/delete/94902
Reject -- https://master.php.net/note/reject/94902
Search -- https://master.php.net/manage/user-notes.php