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<?php var_dump(PHP_INT_MAX); function explodeTrim($delimiter, $string, $limit = 0x7FFFFFF) { // About explode() and PHP_INT_MAX // http://php.net/manual/en/function.explode.php return explode($delimiter, $string, $limit); // further custom logic } $emails = 'test1@example.com, test2@example.com'; $emailsArr = explodeTrim(',', $emails); // using default limit=PHP_INT_MAX var_dump($emailsArr); var_dump(explode(',', $emails));
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.5 - 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
int(9223372036854775807) array(2) { [0]=> string(17) "test1@example.com" [1]=> string(18) " test2@example.com" } array(2) { [0]=> string(17) "test1@example.com" [1]=> string(18) " test2@example.com" }
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(9223372036854775807) array(2) { [0]=> string(17) "test1@example.com" [1]=> string(18) " test2@example.com" } array(2) { [0]=> string(17) "test1@example.com" [1]=> string(18) " test2@example.com" }

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