PHP: Sets file-specific meta-data saved with a file

Description

void PharFileInfo::setMetaData ( mixed $metadata )

setMetaData() should only be used to store customized data in a file that cannot be represented with existing information stored with a file. Meta-data can significantly slow down the performance of loading a phar archive if the data is large, or if there are many files containing meta-data. It is important to note that file permissions are natively supported inside a phar; it is possible to set them with the PharFileInfo::chmod() method. As with all functionality that modifies the contents of a phar, the phar.readonly INI variable must be off in order to succeed if the file is within a Phar archive. Files within PharData archives do not have this restriction.

Some possible uses for meta-data include passing a user/group that should be set when a file is extracted from the phar to disk. Other uses could include explicitly specifying a MIME type to return. However, any useful data that describes a file, but should not be contained inside of it may be stored.

Parameters

metadata: Any PHP variable containing information to store alongside a file

Examples

Example #1 A PharFileInfo::setMetaData() example


<?php

// make sure it doesn't exist

@unlink('brandnewphar.phar');

try {

    $p = new Phar(dirname(__FILE__) . '/brandnewphar.phar', 0, 'brandnewphar.phar');

    $p['file.txt'] = 'hello';

    $p['file.txt']->setMetaData(array('user' => 'bill', 'mime-type' => 'text/plain'));

    var_dump($p['file.txt']->getMetaData());

} catch (Exception $e) {

    echo 'Could not create/modify phar: ', $e;

}

?>

The above example will output:

array(2) {
  ["user"]=>
  string(4) "bill"
  ["mime-type"]=>
  string(10) "text/plain"
}

PharFileInfo::setMetaData

Description

Parameters

Examples

See Also