includes/htmlform/fields/HTMLIntField.php

   1 <?php
   2
   3 /**
   4  * A field that must contain a number
   5  */
   6 class HTMLIntField extends HTMLFloatField {
   7         public function validate( $value, $alldata ) {
   8                 $p = parent::validate( $value, $alldata );
   9
  10                 if ( $p !== true ) {
  11                         return $p;
  12                 }
  13
  14                 # https://www.w3.org/TR/html5/infrastructure.html#signed-integers
  15                 # with the addition that a leading '+' sign is ok. Note that leading zeros
  16                 # are fine, and will be left in the input, which is useful for things like
  17                 # phone numbers when you know that they are integers (the HTML5 type=tel
  18                 # input does not require its value to be numeric).  If you want a tidier
  19                 # value to, eg, save in the DB, clean it up with intval().
  20                 if ( !preg_match( '/^((\+|\-)?\d+)?$/', trim( $value ) ) ) {
  21                         return $this->msg( 'htmlform-int-invalid' );
  22                 }
  23
  24                 return true;
  25         }
  26 }