Difference between revisions of "JArchiveBzip2/extract"
From Joomla! Documentation
< API16:JArchiveBzip2
(New page: ===Description===
Extract a Bzip2 compressed file to a given path
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Revision as of 21:49, 12 May 2013
The "API16" namespace is an archived namespace. This page contains information for a Joomla! version which is no longer supported. It exists only as a historical reference, it will not be improved and its content may be incomplete and/or contain broken links.
Description[edit]
Extract a Bzip2 compressed file to a given path
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Syntax[edit]
extract($archive, $destination, $options=array())
Parameter Name | Default Value | Description |
---|---|---|
$archive | $archive Path to Bzip2 archive to extract | |
$destination | $destination Path to extract archive to | |
$options | array() | $options Extraction options [unused] |
Returns[edit]
boolean True if successful
Defined in[edit]
libraries/joomla/filesystem/archive/bzip2.php
Importing[edit]
jimport( 'joomla.filesystem.archive.bzip2' );
Source Body[edit]
function extract($archive, $destination, $options = array ())
{
// Initialise variables.
$this->_data = null;
if (!extension_loaded('bz2')) {
$this->set('error.message', 'BZip2 Not Supported');
return JError::raiseWarning(100, $this->get('error.message'));
}
/* // old style: read the whole file and then parse it
if (!$this->_data = JFile::read($archive)) {
$this->set('error.message', 'Unable to read archive');
return JError::raiseWarning(100, $this->get('error.message'));
}
$buffer = bzdecompress($this->_data);
unset($this->_data);
if (empty ($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'));
}
//*/
// New style! streams!
$input =& JFactory::getStream();
$input->set('processingmethod','bz'); // use bzip
if(!$input->open($archive)) {
$this->set('error.message', 'Unable to read archive (bz2)');
return JError::raiseWarning(100, $this->get('error.message'));
}
$output =& JFactory::getStream();
if(!$output->open($destination, 'w')) {
$this->set('error.message', 'Unable to write archive (bz2)');
$input->close(); // close the previous file
return JError::raiseWarning(100, $this->get('error.message'));
}
$written = 0;
do {
$this->_data = $input->read($input->get('chunksize', 8196));
if($this->_data) {
if(!$output->write($this->_data)) {
$this->set('error.message', 'Unable to write file (bz2)');
return JError::raiseWarning(100, $this->get('error.message'));
}
}
} while ($this->_data);
$output->close();
$input->close();
return true;
}
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Examples[edit]
<CodeExamplesForm />