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<?php $subject = '"Joe Smith"<jsmith@example.com>, kjones@aol.com; someoneelse@nowhere.com, mjane@gmail.com'; preg_match_all('/\s*([\"\'])?([^"\'><,;]+)\\1?\s*((?:<[^><,]+>)?)\s*/im', $subject, $result, PREG_SET_ORDER); var_dump($result);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(4) { [0]=> array(4) { [0]=> string(31) ""Joe Smith"<jsmith@example.com>" [1]=> string(1) """ [2]=> string(9) "Joe Smith" [3]=> string(20) "<jsmith@example.com>" } [1]=> array(4) { [0]=> string(15) " kjones@aol.com" [1]=> string(0) "" [2]=> string(14) "kjones@aol.com" [3]=> string(0) "" } [2]=> array(4) { [0]=> string(24) " someoneelse@nowhere.com" [1]=> string(0) "" [2]=> string(23) "someoneelse@nowhere.com" [3]=> string(0) "" } [3]=> array(4) { [0]=> string(16) " mjane@gmail.com" [1]=> string(0) "" [2]=> string(15) "mjane@gmail.com" [3]=> string(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 array(4) { [0]=> array(4) { [0]=> string(31) ""Joe Smith"<jsmith@example.com>" [1]=> string(1) """ [2]=> string(9) "Joe Smith" [3]=> string(20) "<jsmith@example.com>" } [1]=> array(4) { [0]=> string(15) " kjones@aol.com" [1]=> string(0) "" [2]=> string(14) "kjones@aol.com" [3]=> string(0) "" } [2]=> array(4) { [0]=> string(24) " someoneelse@nowhere.com" [1]=> string(0) "" [2]=> string(23) "someoneelse@nowhere.com" [3]=> string(0) "" } [3]=> array(4) { [0]=> string(16) " mjane@gmail.com" [1]=> string(0) "" [2]=> string(15) "mjane@gmail.com" [3]=> string(0) "" } }

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