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Iterators
PHP Manual

The DirectoryIterator class

Introduction

The DirectoryIterator class provides a simple interface for viewing the contents of filesystem directories.

Class synopsis

DirectoryIterator
DirectoryIterator extends SplFileInfo implements Iterator , Traversable , SeekableIterator {
/* Methods */
__construct ( string $path )
public DirectoryIterator current ( void )
public int getATime ( void )
public string getBasename ([ string $suffix ] )
public int getCTime ( void )
public string getFilename ( void )
public int getGroup ( void )
public int getInode ( void )
public int getMTime ( void )
public int getOwner ( void )
public string getPath ( void )
public string getPathname ( void )
public int getPerms ( void )
public int getSize ( void )
public string getType ( void )
public bool isDir ( void )
public bool isDot ( void )
public bool isExecutable ( void )
public bool isFile ( void )
public bool isLink ( void )
public bool isReadable ( void )
public bool isWritable ( void )
public string key ( void )
public void next ( void )
public void rewind ( void )
public void seek ( int $position )
public string __toString ( void )
public bool valid ( void )
}

Table of Contents

Iterators
PHP Manual
User Contributed Notes
DirectoryIterator
red_indian hotmail com
13-Apr-2010 07:36
Note that seek() and count() are not always available. At least not on ZendServer CE with PHP 5.2.12 on Mac OSX.

Simple test:

<?php

 echo "php ".phpversion().": ";
 $dirit = new DirectoryIterator( '.' );
 var_dump( method_exists( $dirit, 'seek' ) );
 var_dump( method_exists( $dirit, 'count' ) );

 ?>

You can implement them using existing methods:

seek(): rewind() and then $pos times next()
count(): clone iterator (to keep position), rewind() and then ++$count while ( valid() )
krystianmularczyk at gmail dot com
25-Jan-2009 11:31
Shows us all files and catalogues in directory except "." and "..".

<?php

 foreach (new DirectoryIterator('../moodle') as $fileInfo) {
    if($fileInfo->isDot()) continue;
    echo $fileInfo->getFilename() . "<br>\n";
}

 ?>
David Lanstein
21-Jan-2009 08:50
DirectoryIterator::getBasename() has been also been available since 5.2.2, according to the changelog (not documented yet).  It takes a parameter $suffix, and is useful if, for instance, you use a naming convention for your files (e.g. ClassName.php). 

The following code uses this to add recursively All*Tests.php in any subdirectory off of tests/, basically, suites of suites.

<?php
 // PHPUnit boilerplate code goes here

 class AllTests {
    public static function main() {
        $parameters = array('verbose' => true);
        PHPUnit_TextUI_TestRunner::run(self::suite(), $parameters);
    }

    public static function suite() {
        $suite = new PHPUnit_Framework_TestSuite('AllMyTests'); // this must be something different than the class name, per PHPUnit
        $it = new AllTestsFilterIterator(
                  new RecursiveIteratorIterator(
                      new RecursiveDirectoryIterator(dirname(__FILE__) . '/tests')));

        for ($it->rewind(); $it->valid(); $it->next()) {
            require_once($it->current());
            $className = $it->current()->getBasename('.php');
            $suite->addTest($className::suite());
        }

        return $suite;
    }
}
 ?>

Also, the AllTestsFilterIterator above extends FilterIterator, and contains one method, accept():

<?php
 class AllTestsFilterIterator extends FilterIterator {
    public function accept() {
        if (preg_match('/All.*Tests\.php/', $this->current())) {
            return true;
        } else {
            return false;
        }
    }
}
 ?>
Mark van Straten
09-Jul-2008 02:56
Implements Iterator so you can foreach() over the content of the given directory
 

 
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