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run code in 200+ php & hhvm versions
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<?php function makeItSafe($value) { htmlspecialchars($value); strip_tags($value); htmlentities($value, ENT_QUOTES); return $value; } echo makeItSafe('te~!#$%^&*()st@test.com');
based on SMI93
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
te~!#$%^&*()st@test.com