Joomla! Documentation™

Description

Extract a Gzip compressed file to a given path

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Syntax

extract($archive, $destination, $options=array())

Parameter Name	Default Value	Description
$archive		$archive Path to ZIP archive to extract
$destination		$destination Path to extract archive to
$options	array()	$options Extraction options [unused]

Returns

boolean True if successful

Defined in

libraries/joomla/filesystem/archive/gzip.php

Importing

jimport( 'joomla.filesystem.archive.gzip' );

Source Body

function extract($archive, $destination, $options = array ())
{
        // Initialize variables
        $this->_data = null;

        if (!extension_loaded('zlib')) {
                $this->set('error.message', 'Zlib Not Supported');
                return JError::raiseWarning(100, $this->get('error.message'));
        }

        if (!$this->_data = JFile::read($archive)) {
                $this->set('error.message', 'Unable to read archive');
                return JError::raiseWarning(100, $this->get('error.message'));
        }

        $position = $this->_getFilePosition();
        $buffer = gzinflate(substr($this->_data, $position, strlen($this->_data) - $position));
        if (empty ($buffer)) {
                $this->set('error.message', 'Unable to decompress data');
                return JError::raiseWarning(100, $this->get('error.message'));
        }

        if (JFile::write($destination, $buffer) === false) {
                $this->set('error.message', 'Unable to write archive');
                return JError::raiseWarning(100, $this->get('error.message'));
        }
        return true;
}

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