check if valid mobile phone number

isValidMobileNumber.php

<?php
$phones = array( '447549007599', '353852723831', '614549007599' , '615549007599' , '642549007599' , '918667672071');
#$phones = array( '448549007599');


function isValidMobileNumber($phones = null) {
	$countryCode = array( '44' => '7', '353' => '8', '61' =>'4|5', '64' =>'2');
	$result = array();
	foreach( $phones as $number )
	{
	    $country = array('STATUS' => 'INVALID', 'AREACODE' => '', 'NUMBER' => '');
	    $country['NUMBER'] = $number;
	    foreach( $countryCode as $key => $value )
	    {
		    if ( substr( $number, 0, strlen( $key ) ) == $key ) {
			if ( in_array(substr( $number, strlen( $key ) , 1 ), explode('|', $value)) ) {
				$country['STATUS'] = "VALID";
				$country['AREACODE'] = $key;
	            		break;
			}
		    } 
	    }
	    array_push($result, $country);
	}
	return $result;
}
print_r(isValidMobileNumber($phones));

?>