@ 2014-01-19T20:40:20Z <?php
$a= & $_POST;
$a=array();
function isRef($var) {
$info = getZvalRefCountInfo($var);
return (boolean) $info['is_ref'];
}
function getZvalRefCountInfo($var) {
ob_start();
xdebug_debug_zval($var);
$info = ob_get_clean();
preg_match('(: \(refcount=(\d+), is_ref=(\d+)\))', $info, $match);
return array('refcount' => $match[1], 'is_ref' => $match[2]);
}
var_dump(isRef($a));
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Output for 7.0.0 - 7.0.20 , 7.1.0 - 7.1.20 , 7.2.6 - 7.2.33 , 7.3.12 - 7.3.33 , 7.4.0 - 7.4.33 , 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.6 Fatal error: Uncaught Error: Call to undefined function xdebug_debug_zval() in /in/1Em4S:13
Stack trace:
#0 /in/1Em4S(7): getZvalRefCountInfo(Array)
#1 /in/1Em4S(19): isRef(Array)
#2 {main}
thrown in /in/1Em4S on line 13
Process exited with code 255 . Output for 5.0.0 - 5.0.5 , 5.1.0 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 , 5.4.0 - 5.4.45 , 5.5.24 - 5.5.35 , 5.6.8 - 5.6.28 Fatal error: Call to undefined function xdebug_debug_zval() in /in/1Em4S on line 13
Process exited with code 255 . Output for 4.4.5 - 4.4.9 Fatal error: Call to undefined function: xdebug_debug_zval() in /in/1Em4S on line 13
Process exited with code 255 . Output for 4.3.2 - 4.3.11 , 4.4.0 - 4.4.4 Fatal error: Call to undefined function: xdebug_debug_zval() in /in/1Em4S on line 13
Process exited with code 255 . Output for 4.3.0 - 4.3.1 Fatal error: Call to undefined function: xdebug_debug_zval() in /in/1Em4S on line 13
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224.44 ms | 401 KiB | 312 Q