/PHP/Check value is email or mobilenumber using php

Check value is email or mobilenumber using php

if (!(filter_var($_POST["mobile_no"], FILTER_VALIDATE_EMAIL))) {
				$raw_input_length = strlen($mobile_no);
				$phone = preg_replace("/[^\d]/", "", $mobile_no);
				if($raw_input_length == strlen($phone)){
					if (strlen($phone) !== 10) {
						$member_mobile_no = '';
						$show_otp = 0;
						$error_box = 1;
						$error = "Please Enter a Valid Mobile Number.";
						$color = "red";
					}
				}
				else{
					$member_mobile_no = '';
					$show_otp = 0;
					$error_box = 1;
					$error = "Please Enter a Valid Email Id.";
					$color = "red";
				}
	    }

Source: stackoverflow.com

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