3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = ["post: 746", "post: 2", "post: 84"]; var_export(array_map(function($v){return filter_var($v, FILTER_SANITIZE_NUMBER_INT);}, $array)); // remove all non-integer characters var_export(preg_replace('~^post: ~', '', $array, 1)); // only necessary if you have non-"post: " substrings var_export(array_map(function($v){return trim($v, ': opst');}, $array)); // I shuffled the character mask to prove order doesn't matter
Output for 5.6.38, 7.1.0 - 7.1.24, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.5.1
array ( 0 => '746', 1 => '2', 2 => '84', )array ( 0 => '746', 1 => '2', 2 => '84', )array ( 0 => '746', 1 => '2', 2 => '84', )
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:
154.58 ms | 407 KiB | 5 Q