3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $filename="./ar.txt"; $fp = fopen($filename, "w"); fwrite($fp, "a"); fclose($fp); exit; ?>
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: fopen(./ar.txt): failed to open stream: Permission denied in /in/UMKfL on line 3 Warning: fwrite() expects parameter 1 to be resource, boolean given in /in/UMKfL on line 4 Warning: fclose() expects parameter 1 to be resource, boolean given in /in/UMKfL on line 5
Output for hhvm-3.10.0 - 3.13.2
Warning: Permission denied in /in/UMKfL on line 3 Warning: fwrite() expects parameter 1 to be resource, boolean given in /in/UMKfL on line 4 Warning: fclose() expects parameter 1 to be resource, boolean given in /in/UMKfL on line 5
Output for 4.3.2 - 5.2.17
Warning: fopen(./ar.txt): failed to open stream: Permission denied in /in/UMKfL on line 3 Warning: fwrite(): supplied argument is not a valid stream resource in /in/UMKfL on line 4 Warning: fclose(): supplied argument is not a valid stream resource in /in/UMKfL on line 5
Output for 4.3.0 - 4.3.1
Warning: fopen(./ar.txt) [http://www.php.net/function.fopen]: failed to create stream: Permission denied in /in/UMKfL on line 3 Warning: fwrite(): supplied argument is not a valid stream resource in /in/UMKfL on line 4 Warning: fclose(): supplied argument is not a valid stream resource in /in/UMKfL on line 5