3v4l.org

run code in 300+ PHP versions simultaneously
<?php $email = 'ExamplePerson+test@Gmail.com'; // Remove email tags, value will become 'ExamplePerson@Gmail.com' $email = preg_replace('/\+[^@]+@/', '@', $email); // Convert uppercase letters, value will become 'exampleperson@gmail.com' $email = strtolower($email); // Add prefix, value will become 'anon-hash:exampleperson@gmail.com' $email = 'anon-hash:'. $email; // Make the hash, value will become '56f1902ef780b12430ae194290057a40' $ahash = md5($email); // Or, in short: $bhash = md5('anon-hash:' . strtolower(preg_replace('/\+[^@]+@/', '@', $email))); var_dump($ahash, $bhash);
Output for 4.3.0 - 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 - 7.0.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
string(32) "56f1902ef780b12430ae194290057a40" string(32) "fdcf049679817fa7b2191fa64fcbc906"

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253.74 ms | 406 KiB | 460 Q