3v4l.org

run code in 300+ PHP versions simultaneously
<?php $null = null; $a = is_null($null); assert(assertion: $a);
Output for 8.1.23 - 8.1.33, 8.2.10 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Output for 7.3.0 - 7.3.24, 7.4.0 - 7.4.12
Parse error: syntax error, unexpected ':', expecting ')' in /in/q8Oqq on line 4
Process exited with code 255.
Output for 7.2.0 - 7.2.34
Parse error: syntax error, unexpected ':', expecting ',' or ')' in /in/q8Oqq on line 4
Process exited with code 255.
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