Classes List

Swift_StreamFilters_StringReplacementFilter

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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. */


/** * Processes bytes as they pass through a buffer and replaces sequences in it. * * @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)
    {
        if ('' === $buffer) {
            return false;
        }

        $endOfBuffer = substr($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);
    }
}