RecursiveFilterIterator::__construct
(PHP 5 >= 5.1.0, PHP 7)
RecursiveFilterIterator::__construct — Create 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
test5Example #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
test5See Also
- RecursiveFilterIterator::getChildren() - Return the inner iterator's children contained in a RecursiveFilterIterator
- RecursiveFilterIterator::hasChildren() - Check whether the inner iterator's current element has children
- FilterIterator::accept() - Check whether the current element of the iterator is acceptable
← RecursiveFilterIterator
RecursiveFilterIterator::getChildren →
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