Saudi Mobile Number

SaudiMobileNumber.php

<?php
/**
 * Created by PhpStorm.
 * User: Dev_Hassan
 * Date: 12/4/17
 * Time: 8:37 PM
 */

class SaudiMobileNumber
{
    public static function is($mobileNumber)
    {
        if(is_null($mobileNumber) || empty($mobileNumber))
            return false;

        $mobileNumberLength = mb_strlen($mobileNumber);

        if(mb_substr(trim($mobileNumber), 0, 1) == '+')
            $modifiedMobileNumber = mb_substr($mobileNumber, 1, $mobileNumberLength);
        else
            $modifiedMobileNumber = $mobileNumber;

        $modifiedMobileNumberLength = mb_strlen($modifiedMobileNumber);

        if ($modifiedMobileNumberLength == 12 && mb_substr($modifiedMobileNumber,0,3) == "966")
            return true;

        if ($modifiedMobileNumberLength == 10 && mb_substr($modifiedMobileNumber,0,2) == "05")
            return true;

        if ($modifiedMobileNumberLength == 9 && mb_substr($modifiedMobileNumber,0,1) == "5")
            return true;

        return false;
    }

    public static function toFormalCase($mobileNumber)
    {
        if(is_null($mobileNumber) || empty($mobileNumber))
            return null;

        $mobileNumberLength = mb_strlen($mobileNumber);

        if(mb_substr(trim($mobileNumber), 0, 1) == '+')
            $modifiedMobileNumber = mb_substr($mobileNumber, 1, $mobileNumberLength);
        else
            $modifiedMobileNumber = $mobileNumber;

        $modifiedMobileNumberLength = mb_strlen($modifiedMobileNumber);

        if ($modifiedMobileNumberLength == 12 && mb_substr($modifiedMobileNumber,0,3) == "966")
            return $modifiedMobileNumber;

        if ($modifiedMobileNumberLength == 10 && mb_substr($modifiedMobileNumber,0,2) == "05")
            return '966'.mb_substr($modifiedMobileNumber,1,9);

        if ($modifiedMobileNumberLength == 9 && mb_substr($modifiedMobileNumber,0,1) == "5")
            return '966'.$modifiedMobileNumber;

        return null;
    }

    public static function toCommonCase($mobileNumber)
    {
        if(is_null($mobileNumber) || empty($mobileNumber))
            return null;

        $mobileNumberLength = mb_strlen($mobileNumber);

        if(mb_substr(trim($mobileNumber), 0, 1) == '+')
            $modifiedMobileNumber = mb_substr($mobileNumber, 1, $mobileNumberLength);
        else
            $modifiedMobileNumber = $mobileNumber;

        $modifiedMobileNumberLength = mb_strlen($modifiedMobileNumber);

        if ($modifiedMobileNumberLength == 12 && mb_substr($modifiedMobileNumber,0,3) == "966")
            return '0'.mb_substr($modifiedMobileNumber, 3, 9);

        if ($modifiedMobileNumberLength == 10 && mb_substr($modifiedMobileNumber,0,2) == "05")
            return $modifiedMobileNumber;

        if ($modifiedMobileNumberLength == 9 && mb_substr($modifiedMobileNumber,0,1) == "5")
            return '0'.$modifiedMobileNumber;

        return null;
    }
}