Last updated: Fri, 14 Aug 2009

La classe RecursiveIteratorIterator

Introduction

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Synopsis de la classe

RecursiveIteratorIterator

RecursiveIteratorIterator implements OuterIterator , Traversable , Iterator {

/* Méthodes */

mixed current ( void )

int getDepth ( void )

RecursiveIterator getSubIterator ( void )

mixed key ( void )

void next ( void )

void rewind ( void )

bool valid ( void )

}

Sommaire

RecursiveIteratorIterator::current — Accède à la valeur de l'élément courant
RecursiveIteratorIterator::getDepth — Récupère la profondeur courante de la récursivité de l'itérateur
RecursiveIteratorIterator::getSubIterator — L'itérateur secondaire actif courant
RecursiveIteratorIterator::key — Accède à la clé courante
RecursiveIteratorIterator::next — Déplace l'itérateur à la position suivante
RecursiveIteratorIterator::rewind — Replace l'itérateur au début
RecursiveIteratorIterator::valid — Vérifie si la position courante est valide

add a note User Contributed Notes
RecursiveIteratorIterator

Michiel Brandenburg
14-Jun-2009 11:40


You can use this to quickly find all the files (recursively) in a certain directory. This beats maintaining a stack yourself.

<?php

$directory = "/tmp/";

$fileSPLObjects =  new RecursiveIteratorIterator(

                new RecursiveDirectoryIterator($directory),

                RecursiveIteratorIterator::CHILD_FIRST

            );

try {

    foreach( $fileSPLObjects as $fullFileName => $fileSPLObject ) {

        print $fullFileName . " " . $fileSPLObject->getFilename() . "\n";

    }

}

catch (UnexpectedValueException $e) {

    printf("Directory [%s] contained a directory we can not recurse into", $directory);

}

?>

Note: if there is a directory contained within the directory you are searching in that you have no access to read an UnexpectedValueException will be thrown (leaving you with an empty list).

Note: objects returned are SPLFileObjects

crashrox at gmail dot com
19-Dec-2008 05:51


Recursive multidimensional array flatten using SPL





<?php


function array_flatten_recursive($array) {


    if($array) {


        $flat = array();


        foreach(new RecursiveIteratorIterator(new RecursiveArrayIterator($array), RecursiveIteratorIterator::SELF_FIRST) as $key=>$value) {


            if(!is_array($value)) {


                $flat[] = $value;


            }


        }


        


        return $flat;


    } else {


        return false;


    }


}





$array = array(


    'A' => array('B' => array( 1, 2, 3, 4, 5)),


    'C' => array( 6,7,8,9)


);





print_r(array_flatten_recursive($array));


?>


-- Returns:


Array (


    [0] => 1


    [1] => 2


    [2] => 3


    [3] => 4


    [4] => 5


    [5] => 6


    [6] => 7


    [7] => 8


    [8] => 9


)

add a note

RecursiveIteratorIterator::current

RecursiveDirectoryIterator::rewind

Last updated: Fri, 14 Aug 2009