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run code in 500+ PHP versions simultaneously
<?php var_dump(ini_get('allow_url_fopen')); ini_set('allow_url_fopen', 0); var_dump(ini_get('allow_url_fopen'));
Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
string(1) "1" string(1) "1"
preferences:
41.22 ms | 700 KiB | 4 Q