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File: StringReplacementFilter.php
<?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. */ /** * Processes bytes as they pass through a buffer and replaces sequences in it. * * @package Swift * @author Chris Corbyn */ class Swift_StreamFilters_StringReplacementFilter implements Swift_StreamFilter { /** The needle(s) to search for */ private $_search; /** The replacement(s) to make */ private $_replace; /** * Create a new StringReplacementFilter with $search and $replace. * * @param string|array $search * @param string|array $replace */ public function __construct($search, $replace) { $this->_search = $search; $this->_replace = $replace; } /** * Returns true if based on the buffer passed more bytes should be buffered. * * @param string $buffer * * @return bool */ public function shouldBuffer($buffer) { $endOfBuffer = substr($buffer, -1); foreach ((array) $this->_search as $needle) { if (false !== strpos($needle, $endOfBuffer)) { return true; } } return false; } /** * Perform the actual replacements on $buffer and return the result. * * @param string $buffer * * @return string */ public function filter($buffer) { return str_replace($this->_search, $this->_replace, $buffer); } }