3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = false; $a = fopen('http://example.com'); array_key_exists($a, get_defined_vars()); array(&$$a); fclose($a);
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: fopen() expects at least 2 parameters, 1 given in /in/fVfui on line 3 Warning: array_key_exists(): The first argument should be either a string or an integer in /in/fVfui on line 4 Warning: fclose() expects parameter 1 to be resource, boolean given in /in/fVfui on line 6
Output for hhvm-3.10.0 - 3.12.0
Warning: fopen() expects at least 2 parameters, 1 given in /in/fVfui on line 3 Warning: fclose() expects parameter 1 to be resource, null given in /in/fVfui on line 6
Output for 5.2.3 - 5.2.17
Warning: fopen() expects at least 2 parameters, 1 given in /in/fVfui on line 3 Warning: array_key_exists(): The first argument should be either a string or an integer in /in/fVfui on line 4 Warning: fclose(): supplied argument is not a valid stream resource in /in/fVfui on line 6
Output for 4.4.3 - 5.2.2
<br /> <b>Warning</b>: fopen() expects at least 2 parameters, 1 given in <b>/in/fVfui</b> on line <b>3</b><br /> <br /> <b>Warning</b>: array_key_exists() [<a href='function.array-key-exists'>function.array-key-exists</a>]: The first argument should be either a string or an integer in <b>/in/fVfui</b> on line <b>4</b><br /> <br /> <b>Warning</b>: fclose(): supplied argument is not a valid stream resource in <b>/in/fVfui</b> on line <b>6</b><br />
Output for 4.3.2 - 4.4.2
<br /> <b>Warning</b>: fopen() expects at least 2 parameters, 1 given in <b>/in/fVfui</b> on line <b>3</b><br /> <br /> <b>Warning</b>: array_key_exists(): The first argument should be either a string or an integer in <b>/in/fVfui</b> on line <b>4</b><br /> <br /> <b>Warning</b>: fclose(): supplied argument is not a valid stream resource in <b>/in/fVfui</b> on line <b>6</b><br />
Output for 4.3.0 - 4.3.1
<br /> <b>Warning</b>: fopen() expects at least 2 parameters, 1 given in <b>/in/fVfui</b> on line <b>3</b><br /> <br /> <b>Warning</b>: array_key_exists() [<a href='http://www.php.net/function.array-key-exists'>function.array-key-exists</a>]: The first argument should be either a string or an integer in <b>/in/fVfui</b> on line <b>4</b><br /> <br /> <b>Warning</b>: fclose(): supplied argument is not a valid stream resource in <b>/in/fVfui</b> on line <b>6</b><br />