3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match( '/^\[#(\d+)\]/', '[#1234] Subject', $matches); print_r($matches)
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected end of file in /in/L4ktJ on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected $end in /in/L4ktJ on line 3
Process exited with code 255.
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