3v4l.org

run code in 300+ PHP versions simultaneously
<?php 'foo'[] = 'bar';
Output for 7.0.0 - 7.0.15, 7.1.0 - 7.1.1
Fatal error: Cannot use temporary expression in write context in /in/kelqX on line 3
Process exited with code 255.
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170.48 ms | 1395 KiB | 25 Q