File classes/swiftmailer/lib/classes/Swift/StreamFilters/StringReplacementFilterFactory.php

 1: <?php
 2: 
 3: /*
 4:  * This file is part of SwiftMailer.
 5:  * (c) 2004-2009 Chris Corbyn
 6:  *
 7:  * For the full copyright and license information, please view the LICENSE
 8:  * file that was distributed with this source code.
 9:  */
10: 
11: /**
12:  * Creates filters for replacing needles in a string buffer.
13:  * @package Swift
14:  * @author Chris Corbyn
15:  */
16: class Swift_StreamFilters_StringReplacementFilterFactory implements Swift_ReplacementFilterFactory
17: {
18:     /** Lazy-loaded filters */
19:     private $_filters = array();
20: 
21:     /**
22:      * Create a new StreamFilter to replace $search with $replace in a string.
23:      * @param  string             $search
24:      * @param  string             $replace
25:      * @return Swift_StreamFilter
26:      */
27:     public function createFilter($search, $replace)
28:     {
29:         if (!isset($this->_filters[$search][$replace])) {
30:             if (!isset($this->_filters[$search])) {
31:                 $this->_filters[$search] = array();
32:             }
33: 
34:             if (!isset($this->_filters[$search][$replace])) {
35:                 $this->_filters[$search][$replace] = array();
36:             }
37: 
38:             $this->_filters[$search][$replace]
39:                 = new Swift_StreamFilters_StringReplacementFilter($search, $replace);
40:         }
41: 
42:         return $this->_filters[$search][$replace];
43:     }
44: }
45:
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