3v4l.org

run code in 300+ PHP versions simultaneously
<?php function func(&$r) { $r++ } $r = 1; func( func( $r ) ); echo $r;
Output for 5.3.0 - 5.3.24, 5.4.0 - 5.4.15
Parse error: syntax error, unexpected '}' in pK6r9 on line 5
Process exited with code 255.
Output for 5.3.25
Parse error: syntax error, unexpected '}' in /in/pniPa on line 5
Process exited with code 255.
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189.19 ms | 1395 KiB | 49 Q