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<?php
/*
* This file is part of SwiftMailer.
* (c) 2004-2009 Chris Corbyn
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Creates filters for replacing needles in a string buffer.
*
* @author Chris Corbyn
*/
class Swift_StreamFilters_StringReplacementFilterFactory implements Swift_ReplacementFilterFactory
{
/** Lazy-loaded filters */
private $_filters = array();
/**
* Create a new StreamFilter to replace $search with $replace in a string.
*
* @param string $search
* @param string $replace
*
* @return Swift_StreamFilter
*/
public function createFilter($search, $replace)
{
if (!isset($this->_filters[$search][$replace])) {
if (!isset($this->_filters[$search])) {
$this->_filters[$search] = array();
}
if (!isset($this->_filters[$search][$replace])) {
$this->_filters[$search][$replace] = array();
}
$this->_filters[$search][$replace] = new Swift_StreamFilters_StringReplacementFilter($search, $replace);
}
return $this->_filters[$search][$replace];
}
}
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