Convert mobile number to international format dynamically with php
I often need to covert mobile numbers into a UK international format of 44 followed by the number such as 442548951486 the numbers I work with can be in a mixed format some without a starting 0 others with 44 and same with spaces, so I wrote function that will convert a number in any mixture into a standard format quick and easily and as all the code is inside a function is reusable which means converting numbers in bulk is now very easy to do.
The function simple needs a number passing to it, a check is done to make sure the number only contains numbers then a check is done to see if the number starts with a 0 if not if will add a 0 as long as the start is not 4. Then a check is done to replace the 0 with a 44 then finally any spaces are removed and the formatted number is then returned.
Here’s the function:
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<?php function format_number($number) { //make sure the number is actually a number if(is_numeric($number)){ //if number doesn't start with a 0 or a 4 add a 0 to the start. if($number[0] != 0 && $number[0] != 4){ $number = "0".$number; } //if number starts with a 0 replace with 4 if($number[0] == 0){ $number[0] = str_replace("0","4",$number[0]); $number = "4".$number; } //remove any spaces in the number $number = str_replace(" ","",$number); //return the number return $number; //number is not a number } else { //return nothing return false; } } ?> |
Usage Example:
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<?php echo format_number('07295514973'); ?> |
About Author
David Carr | Website | Twitter
I'm a PHP Web Developer based in Hull it is my passion to develop clean, accessible and usable websites and applications, I'm an avid Twitter user why not Follow me? @daveismynamecom or join me on Google+