3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Dumper {} use Foo\Dumper;
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.27
Fatal error: Cannot use Foo\Dumper as Dumper because the name is already in use in /in/HiaSm on line 5
Process exited with code 255.
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187.02 ms | 1395 KiB | 64 Q