XOOPS 2.5.6  Final
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Pixels.php
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1 <?php
2 
7 {
8 
9  protected $max;
10 
11  public function __construct($max = null) {
12  $this->max = $max;
13  }
14 
15  public function validate($string, $config, $context) {
16 
17  $string = trim($string);
18  if ($string === '0') return $string;
19  if ($string === '') return false;
20  $length = strlen($string);
21  if (substr($string, $length - 2) == 'px') {
22  $string = substr($string, 0, $length - 2);
23  }
24  if (!is_numeric($string)) return false;
25  $int = (int) $string;
26 
27  if ($int < 0) return '0';
28 
29  // upper-bound value, extremely high values can
30  // crash operating systems, see <http://ha.ckers.org/imagecrash.html>
31  // WARNING, above link WILL crash you if you're using Windows
32 
33  if ($this->max !== null && $int > $this->max) return (string) $this->max;
34 
35  return (string) $int;
36 
37  }
38 
39  public function make($string) {
40  if ($string === '') $max = null;
41  else $max = (int) $string;
42  $class = get_class($this);
43  return new $class($max);
44  }
45 
46 }
47 
48 // vim: et sw=4 sts=4