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<?php $fullname = 'Joe Blow'; if (preg_match('/^ (\S+) # firstname/alias \s+ \S+ # surname $/x', $fullname, $matches)) { print $matches[1] . "\n"; }
Output for 7.0.18, 7.1.4, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Warning: preg_match(): Unknown modifier 'a' in /in/jh4EJ on line 4
Output for 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.17, 7.0.19 - 7.0.33, 7.1.0 - 7.1.3, 7.1.5 - 7.1.33, 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
Warning: preg_match(): Unknown modifier 'a' in /in/jh4EJ on line 8
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier 'a' in /in/jh4EJ on line 8
preferences:
153.33 ms | 408 KiB | 5 Q