Construct a phar archive from an iterator.

Phar::buildFromDirectory
Phar::canCompress
Phar
PHP Manual

# Phar::buildFromIterator

(PHP >= 5.3.0, PECL phar >= 2.0.0)

Phar::buildFromIterator — Construct a phar archive from an iterator.

### Description

public array Phar::buildFromIterator ( Iterator `$iter` [, string `$base_directory` ] )

> Note:

> This method requires the php.ini setting phar.readonly to be set to 0 in order to work for Phar objects. Otherwise, a PharException will be thrown.

Populate a phar archive from an iterator. Two styles of iterators are supported, iterators that map the filename within the phar to the name of a file on disk, and iterators like DirectoryIterator that return SplFileInfo objects. For iterators that return SplFileInfo objects, the second parameter is required.

### Parameters

`iter`

  Any iterator that either associatively maps phar file to location or returns SplFileInfo objects

`base_directory`

  For iterators that return SplFileInfo objects, the portion of each file's full path to remove when adding to the phar archive

### Return Values

Phar::buildFromIterator() returns an associative array mapping internal path of file to the full path of the file on the filesystem.

### Examples

Example #1 A Phar::buildFromIterator() with SplFileInfo

For most phar archives, the archive will reflect an actual directory layout, and the second style is the most useful. For instance, to create a phar archive containing the files in this sample directory layout:

    /path/to/project/
                     config/
                            dist.xml
                            debug.xml
                     lib/
                         file1.php
                         file2.php
                     src/
                         processthing.php
                     www/
                         index.php
                     cli/
                         index.php

This code could be used to add these files to the "project.phar" phar archive:

`<?php
// create with alias "project.phar"
$phar = new Phar('project.phar', 0, 'project.phar');
$phar->buildFromIterator(
new RecursiveIteratorIterator(
new RecursiveDirectoryIterator('/path/to/project')),
'/path/to/project');
$phar->setStub($phar->createDefaultStub('cli/index.php', 'www/index.php'));
?>`

The file project.phar can then be used immediately. Phar::buildFromIterator() does not set values such as compression, metadata, and this can be done after creating the phar archive.

As an interesting note, Phar::buildFromIterator() can also be used to copy the contents of an existing phar archive, as the Phar object descends from DirectoryIterator:

`<?php
// create with alias "project.phar"
$phar = new Phar('project.phar', 0, 'project.phar');
$phar->buildFromIterator(
new RecursiveIteratorIterator(
new Phar('/path/to/anotherphar.phar')),
'phar:///path/to/anotherphar.phar/path/to/project');
$phar->setStub($phar->createDefaultStub('cli/index.php', 'www/index.php'));
?>`

Example #2 A Phar::buildFromIterator() with other iterators

The second form of the iterator can be used with any iterator that returns a key => value mapping, such as an ArrayIterator:

`<?php
// create with alias "project.phar"
$phar = new Phar('project.phar', 0, 'project.phar');
$phar->buildFromIterator(
new ArrayIterator(
array(
'internal/file.php' => dirname(__FILE__) . '/somefile.php',
'another/file.jpg' => fopen('/path/to/bigfile.jpg', 'rb'),
)));
$phar->setStub($phar->createDefaultStub('cli/index.php', 'www/index.php'));
?>`

### Errors/Exceptions

This method returns UnexpectedValueException when the iterator returns incorrect values, such as an integer key instead of a string, a BadMethodCallException when an SplFileInfo-based iterator is passed without a `base_directory` parameter, or a PharException if there were errors saving the phar archive.

### See Also

- Phar::buildFromDirectory() - Construct a phar archive from the files within a directory.

Phar::buildFromDirectory
Phar::canCompress
Phar
PHP Manual