Comments on: PHP Validation Numbers Only From

By: fie

fie — Tue, 11 Oct 2011 16:33:32 +0000

To blindly block non-numeric characters just cast the input as an int.

$input = (int) $_GET['int'];

also, +1 for ctype_digit().

By: kamal

kamal — Wed, 24 Aug 2011 12:53:13 +0000

I think “ctype_digit” this function help you ….

By: Drupal Steve

Drupal Steve — Mon, 04 Apr 2011 17:22:58 +0000

If you want to convert '(555) 555-5555' to '5555555555', for example, use this:



$phone_number_as_string = '(555) 555-5555';
// Outputs '(555) 555-5555'

$phone_number_as_integer = preg_replace("/[^0-9]/", "", $phone_number_as_string);
// Outputs 5555555555

If you want to reformat your phone number into a different string, as '555-555-5555', for example, use this:



// Regular Expression
$phone_number_as_integer_template = '/([0-9]{3})([0-9]{3})([0-9]{4})/';

// Split phone number into array of 3 parts (phone_number_fields) 1/2/3 ('0' is all matches)
preg_match($phone_number_as_integer_template, $phone_number_as_integer, $phone_number_fields);

// Use these three parts to re-construct the phone number (separated by dashes)
$phone_number_formatted = $phone_number_fields[1] . '-' . $phone_number_fields[2] . '-' . $phone_number_fields[3];

print $phone_number_formatted;
// Outputs '555-555-5555'

By: Asad

Asad — Sun, 30 Jan 2011 18:23:52 +0000

Thank very much dear it solve my great problem.

By: 232322

232322 — Tue, 06 Jul 2010 12:59:10 +0000

232133

By: 1233333

1233333 — Tue, 06 Jul 2010 12:58:26 +0000

132131

By: mohamed

mohamed — Thu, 12 Feb 2009 20:49:19 +0000

is_numeric has problem

just input 345345e45 watch "e" in the middle w' means power i think it accept this as an i/p of numbers

thanks.