The CallbackFilterIterator class
CallbackFilterIterator
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CallbackFilterIterator
extends
FilterIterator
&Methods;
&InheritedMethods;
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The callback should accept up to three arguments:
the current item, the current key and the iterator, respectively.
Available callback arguments
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Any callable may be used; such as a string containing a
function name, an array for a method, or an anonymous function.
Callback basic examples
100MB)
function is_large_file($current) {
return $current->isFile() && $current->getSize() > 104857600;
}
$large_files = new CallbackFilterIterator($dir, 'is_large_file');
// Filter directories
$files = new CallbackFilterIterator($dir, function ($current, $key, $iterator) {
return $current->isDir() && ! $iterator->isDot();
});
?>
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&reference.spl.entities.callbackfilteriterator;