PHP 5.6.0RC3 is available

RecursiveFilterIterator::__construct

(PHP 5 >= 5.1.0)

RecursiveFilterIterator::__constructCreate a RecursiveFilterIterator from a RecursiveIterator

Description

public RecursiveFilterIterator::__construct ( RecursiveIterator $iterator )

Create a RecursiveFilterIterator from a RecursiveIterator.

Parameters

iterator

The RecursiveIterator to be filtered.

Return Values

No value is returned.

Examples

Example #1 Basic RecursiveFilterIterator() example

<?php
class TestsOnlyFilter extends RecursiveFilterIterator {
    public function 
accept() {
        
// Accept the current item if we can recurse into it
        // or it is a value starting with "test"
        
return $this->hasChildren() || (strpos($this->current(), "test") !== FALSE);
    }
}

$array    = array("test1", array("taste2""test3""test4"), "test5");
$iterator = new RecursiveArrayIterator($array);
$filter   = new TestsOnlyFilter($iterator);

foreach(new 
RecursiveIteratorIterator($filter) as $key => $value)
{
    echo 
$value "\n";
}
?>

The above example will output something similar to:

test1
test3
test4
test5

Example #2 RecursiveFilterIterator() example

<?php
class StartsWithFilter extends RecursiveFilterIterator {

    protected 
$word;

    public function 
__construct(RecursiveIterator $rit$word) {
        
$this->word $word;
        
parent::__construct($rit);
    }

    public function 
accept() {
        return 
$this->hasChildren() OR strpos($this->current(), $this->word) === 0;
    }
    
    public function 
getChildren() {
        return new 
self($this->getInnerIterator()->getChildren(), $this->word);
    }
}

$array    = array("test1", array("taste2""test3""test4"), "test5");
$iterator = new RecursiveArrayIterator($array);
$filter   = new StartsWithFilter($iterator"test");

foreach(new 
RecursiveIteratorIterator($filter) as $key => $value)
{
    echo 
$value "\n";
}
?>

The above example will output something similar to:

test1
test3
test4
test5

See Also

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