PHP Function to Validate User Age

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function cvf_ps_check_user_age ($birthDate) {

// Define the date separator then explode to get each value
$birthDate = explode("/", $birthDate);

$age = (date("md", date("U", mktime(0, 0, 0, $birthDate[0], $birthDate[1], $birthDate[2]))) > date("md")
? ((date("Y") - $birthDate[2]) - 1)
: (date("Y") - $birthDate[2]));

// Define the age restriction
if ($age > 18) {
return true;
} else {
return false;
}
}

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