3v4l.org

run code in 300+ PHP versions simultaneously
<?php ob_start(); echo "ob_0"; ob_start(); echo "ob_1"; ob_start(); echo "ob_2"; print_r(ob_get_status(true)); $ob2 = ob_get_clean(); $ob1 = ob_get_clean(); $ob0 = ob_get_clean(); echo "0: ".$ob0."\n"; echo "1: ".$ob1."\n"; echo "2: ".$ob2."\n";

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33.04 ms | 402 KiB | 5 Q