3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strings = [ "This is a (first) test with the first hit", "This is a (first] test with the first hit" ]; foreach ($strings as $str) { preg_match( '/(?:\(first\)|\[first]|{first})(*SKIP)(*FAIL)|\bfirst\b/', $str, $matches, PREG_OFFSET_CAPTURE); print_r($matches); }
Output for 7.2.0 - 7.2.33, 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 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Array ( [0] => Array ( [0] => first [1] => 32 ) ) Array ( [0] => Array ( [0] => first [1] => 11 ) )
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

preferences:
182.16 ms | 407 KiB | 5 Q