3v4l.org

run code in 300+ PHP versions simultaneously
<?php $hashes = array(); $collisions = 0; for($i=0, $i < 60000, $i++){ $hash = hash("crc32", $i); if (in_array($hash, $hashes)) { $collisions++; } } echo $collisions; ?>
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.32
Parse error: syntax error, unexpected ')', expecting ';' in /in/YngRg on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected ')', expecting ';' in /in/YngRg on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `';'' in /in/YngRg on line 6
Process exited with code 255.
preferences:
211.23 ms | 1399 KiB | 123 Q