3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dir=@opendir('/in/'); $a=array(); while(($f=readdir($dir))){$a[]=$f;}; sort($a); print(join("\n",$a));
Output for 7.4.26 - 7.4.27, 7.4.29 - 7.4.33, 8.0.13, 8.0.15 - 8.0.17, 8.0.19 - 8.0.23, 8.0.25 - 8.0.30, 8.1.0 - 8.1.17, 8.1.19 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
. .. mocrn
Output for 8.1.18
. .. 7j48W mocrn
Output for 8.0.24
. .. U0V33 mocrn
Output for 8.0.18
. .. dN3KO mocrn
Output for 8.0.14
. .. QI2Ds mocrn
Output for 8.0.0 - 8.0.12
Fatal error: Uncaught TypeError: readdir(): Argument #1 ($dir_handle) must be of type resource or null, bool given in /in/mocrn:4 Stack trace: #0 /in/mocrn(4): readdir(false) #1 {main} thrown in /in/mocrn on line 4
Process exited with code 255.
Output for 7.4.28
. .. iD5uJ mocrn
Output for 7.3.0 - 7.3.32, 7.4.0 - 7.4.25
Warning: readdir() expects parameter 1 to be resource, bool given in /in/mocrn on line 4
Output for 7.3.33
. .. mocrn pnUCd
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34
Warning: readdir() expects parameter 1 to be resource, boolean given in /in/mocrn on line 4
Output for 5.2.3 - 5.2.17
Warning: readdir(): supplied argument is not a valid Directory resource in /in/mocrn on line 4
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Warning</b>: readdir(): supplied argument is not a valid Directory resource in <b>/in/mocrn</b> on line <b>4</b><br />

preferences:
277.35 ms | 402 KiB | 464 Q