This article mainly shares with you the example code of PHP verifying whether the entered mobile phone number is legal. I hope it can help everyone.
function is_mobile_phone ($mobile_phone)
{
$chars = "/^13[0-9]{1}[0-9]{8}$|15[0-9]{1}[0-9]{8}$|18[0-9]{1}[0-9]{8}$|17[0-9]{1}[0-9]{8}$/";
if(preg_match($chars, $mobile_phone))
{
return true;
}
return false;
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