1: <?php
 2: 
 3: /**
 4:  * @copyright Copyright (c) 2009-2022 ThemeCatcher (https://www.themecatcher.net)
 5:  */
 6: class Quform_Filter_Trim extends Quform_Filter_Abstract
 7: {
 8:     /**
 9:      * Trims whitespace from the beginning and end of the given value
10:      *
11:      * If the value provided is not a string, the value will remain unfiltered
12:      *
13:      * @param   string  $value  The value to filter
14:      * @return  string          The filtered value
15:      */
16:     public function filter($value)
17:     {
18:         if ( ! is_string($value)) {
19:             return $value;
20:         }
21: 
22:         return trim($value);
23:     }
24: 
25:     /**
26:      * Get the default config for this filter
27:      *
28:      * @param   string|null  $key  Get the config by key, if omitted the full config is returned
29:      * @return  array
30:      */
31:     public static function getDefaultConfig($key = null)
32:     {
33:         $config = apply_filters('quform_default_config_filter_trim', array());
34: 
35:         $config['type'] = 'trim';
36: 
37:         if (Quform::isNonEmptyString($key)) {
38:             return Quform::get($config, $key);
39:         }
40: 
41:         return $config;
42:     }
43: }
44: