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I need to verify if user have entered desired characters in the input field and if he didn't, I need to format input like this:

Start variable: +42 88 66 44 3, +42 (4) 87/654321; +42 3 123456

Desired variable: +428866443, +42487654321, +423123456

So basically I need to clear out all characters from variable that are not numbers and allow only signs like + , ; -.

Because I'm using an AJAX request, I would appreciate code for both PHP and Javascript.

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3  
What have you tried? This isn't code charity. –  Calvin.Allen Sep 23 '12 at 22:31
    
Is that three separate entries, or one entry? And, seriously, have you implemented anything yet? What part are you stuck at? –  David Thomas Sep 23 '12 at 22:31
    
I'm sorry, but as HillBilly.Developer said, we're not going to write code for you. –  SomekidwithHTML Sep 23 '12 at 22:34

1 Answer 1

up vote 3 down vote accepted

For striping invalid chars from your string use regular expression in PHP and JAVASCRIPT.

PHP

$s = '+42 88 66 44 3, +42 (4) 87/654321; +42 3 123456';
$n = preg_replace('~[^\d\+,;-]~', '', $s);
print_r($n);

JAVASCRIPT

var s = '+42 88 66 44 3, +42 (4) 87/654321; +42 3 123456';
var n = s.replace(/[^\d\+,;-]/g, "");
console.log(n);

But better practice is that you show error, if user enters wrong format. You will need some validating to todo...

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Escape the - in a character class, or move it to the beginning/end. Eg: [^\d+,;-] –  Qtax Sep 24 '12 at 2:56
    
This code, php and js, works for me. I have tested it before posting as an answer. But ok, I have corrected my answer. Tnx –  Glavić Sep 24 '12 at 6:18
    
Sure, I'll notify user what he is allowed to type. Thanks a lot! –  RhymeGuy Sep 24 '12 at 9:08

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