3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'assert(): Assertion ""Foo" === "bar"" failed in /in/joNsK on line 3'; print_r(preg_match('~^assert(): Assertion "(.+)"[^"]+$~', '<?php $1', $str));

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35.68 ms | 402 KiB | 5 Q