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run code in 300+ PHP versions simultaneously
<?php namespace foo; define("TRUE", "bar"); var_dump (TRUE); var_dump (\TRUE);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Warning: Constant TRUE already defined in /in/VJIPa on line 5 bool(true) bool(true)
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(true) bool(true)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
string(3) "bar" bool(true)
preferences:
198.41 ms | 402 KiB | 332 Q