@ 2013-09-16T20:23:36Z <?php
function remove_recursion($o){
static $replace;
if(!isset($replace))
$replace = create_function('$m','$r="\x00{$m[1]}ecursion_";return \'s:\'.strlen($r.$m[2]).\':"\'.$r.$m[2].\'";\';')
;
if(is_array($o) || is_object($o)){
$re = '#(r|R):([0-9]+);#';
$serialize = serialize($o);
if(preg_match($re, $serialize)){
$last = $pos = 0;
while(false !== ($pos = strpos($serialize, 's:', $pos))){
$chunk = substr($serialize, $last, $pos - $last);
if(preg_match($re, $chunk)){
$length = strlen($chunk);
$chunk = preg_replace_callback($re, $replace, $chunk);
$serialize = substr($serialize, 0, $last).$chunk.substr($serialize, $last + ($pos - $last));
$pos += strlen($chunk) - $length;
}
$pos += 2;
$last = strpos($serialize, ':', $pos);
$length = substr($serialize, $pos, $last- $pos);
$last += 4 + $length;
$pos = $last;
}
$serialize = substr($serialize, 0, $last).preg_replace_callback($re, $replace, substr($serialize, $last));
$o = unserialize($serialize);
}
}
return $o;
}
$o = new stdClass;
$o->n = $o;
$o->r = &$o;
echo serialize($o), '
',
serialize(
remove_recursion($o)
)
;
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Output for 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.6 O:8:"stdClass":2:{s:1:"n";r:1;s:1:"r";R:1;}
Fatal error: Uncaught Error: Call to undefined function create_function() in /in/3OjaX:5
Stack trace:
#0 /in/3OjaX(40): remove_recursion(Object(stdClass))
#1 {main}
thrown in /in/3OjaX on line 5
Process exited with code 255 . Output for 7.2.0 - 7.2.33 , 7.3.0 - 7.3.31 , 7.4.0 - 7.4.33 O:8:"stdClass":2:{s:1:"n";r:1;s:1:"r";R:1;}
Deprecated: Function create_function() is deprecated in /in/3OjaX on line 5
O:8:"stdClass":2:{s:1:"n";s:12:" recursion_1";s:1:"r";s:12:" Recursion_1";} Output for 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 , 5.6.7 - 5.6.28 , 7.0.0 - 7.0.20 , 7.1.0 - 7.1.25 , 7.3.32 - 7.3.33 O:8:"stdClass":2:{s:1:"n";r:1;s:1:"r";R:1;}
O:8:"stdClass":2:{s:1:"n";s:12:" recursion_1";s:1:"r";s:12:" Recursion_1";} Output for 5.0.0 - 5.0.5 O:8:"stdClass":2:{s:1:"n";r:1;s:1:"r";r:1;}
O:8:"stdClass":2:{s:1:"n";s:12:" recursion_1";s:1:"r";s:12:" recursion_1";} Output for 4.3.10 - 4.3.11 , 4.4.0 - 4.4.9 O:8:"stdClass":2:{s:1:"n";O:8:"stdClass":0:{}s:1:"r";O:8:"stdClass":2:{s:1:"n";r:2;s:1:"r";R:3;}}
O:8:"stdClass":2:{s:1:"n";O:8:"stdClass":0:{}s:1:"r";O:8:"stdClass":2:{s:1:"n";s:12:" recursion_2";s:1:"r";s:12:" Recursion_3";}} Output for 4.3.0 - 4.3.9 O:8:"stdClass":2:{s:1:"n";O:8:"stdClass":0:{}s:1:"r";O:8:"stdClass":2:{s:1:"n";O:8:"stdClass":0:{}s:1:"r";R:3;}}
O:8:"stdClass":2:{s:1:"n";O:8:"stdClass":0:{}s:1:"r";O:8:"stdClass":2:{s:1:"n";O:8:"stdClass":0:{}s:1:"r";s:12:" Recursion_3";}} preferences:dark mode live preview
240.29 ms | 402 KiB | 329 Q