function validateEmail($email) {
$pattern = '/^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/';
if (preg_match($pattern, $email)) {
return true;
} else {
return false;
}
}
//example
$result = validateEmail('[email protected]');
//output
echo $result; //true
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