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run code in 300+ PHP versions simultaneously
<?php var_dump(\DateTime::RFC3339);
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.13
string(13) "Y-m-d\TH:i:sP"
preferences:
148.25 ms | 407 KiB | 5 Q