(PHP 5 >= 5.4.0, PHP 7)
RecursiveCallbackFilterIterator::hasChildren — Check whether the inner iterator's current element has children
public RecursiveCallbackFilterIterator::hasChildren ( ) : bool
Returns true
if the current element has children, false
otherwise.
This function has no parameters.
Returns true
if the current element has children, false
otherwise.
Example #1 RecursiveCallbackFilterIterator::hasChildren() basic usage
<?php $dir = new RecursiveDirectoryIterator(__DIR__); // Recursively iterate over XML files $files = new RecursiveCallbackFilterIterator($dir, function ($current, $key, $iterator) { // Allow recursion into directories if ($iterator->hasChildren()) { return TRUE; } // Check for XML file if (!strcasecmp($current->getExtension(), 'xml')) { return TRUE; } return FALSE; }); ?>
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https://www.php.net/manual/en/recursivecallbackfilteriterator.haschildren.php