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<?php $subject = '512345678'; $failingPattern = '/^[7893-5]\d{8}$/'; $result = preg_match($failingPattern , $subject, $groups, PREG_OFFSET_CAPTURE); var_dump($result, $groups);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.3 - 7.0.31, 7.1.0 - 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
int(1) array(1) { [0]=> array(2) { [0]=> string(9) "512345678" [1]=> int(0) } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 int(1) array(1) { [0]=> array(2) { [0]=> string(9) "512345678" [1]=> int(0) } }
Output for 7.0.0 - 7.0.2
int(0) array(0) { }

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