3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/[^\w]fox\s/'; if (preg_match($pattern, 'The quick brown fox jumps over the lazy dog')) { echo "'fox' is present..."; } else echo "'fox' is not present..."; />
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 '/' in /in/2VHkm on line 9
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 '/' in /in/2VHkm on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/2VHkm on line 9
Process exited with code 255.
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232.07 ms | 1395 KiB | 123 Q