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--TEST-- SPL: RecursiveIteratorIterator and hasChildren --FILE-- <?php class MyRecursiveArrayIterator extends RecursiveArrayIterator { function valid() { if (!parent::valid()) { echo __METHOD__ . " = false\n"; return false; } else { return true; } } function getChildren() { echo __METHOD__ . "\n"; return parent::getChildren(); } } class RecursiveArrayIteratorIterator extends RecursiveIteratorIterator { private $max_depth; private $over = 0; private $skip = false; function __construct($it, $max_depth) { $this->max_depth = $max_depth; parent::__construct($it); } function rewind() { echo __METHOD__ . "\n"; $this->skip = false; parent::rewind(); } function valid() { echo __METHOD__ . "\n"; if ($this->skip) { $this->skip = false; $this->next(); } return parent::valid(); } function current() { echo __METHOD__ . "\n"; return parent::current(); } function key() { echo __METHOD__ . "\n"; return parent::key(); } function next() { echo __METHOD__ . "\n"; parent::next(); } function callHasChildren() { $this->skip = false; $has = parent::callHasChildren(); $res = $this->getDepth() < $this->max_depth && $has; echo __METHOD__ . "(".$this->getDepth().") = ".($res?"yes":"no")."/".($has?"yes":"no")."\n"; if ($has && !$res) { $this->over++; if ($this->over == 2) { $this->skip = true; } } return $res; } function beginChildren() { echo __METHOD__ . "(".$this->getDepth().")\n"; } function endChildren() { echo __METHOD__ . "(".$this->getDepth().")\n"; } } foreach(new RecursiveArrayIteratorIterator(new MyRecursiveArrayIterator(array("a", array("ba", array("bba", "bbb"), array(array("bcaa"), array("bcba"))), array("ca"), "d")), 2) as $k=>$v) { if (is_array($v)) $v = join('',$v); echo "$k=>$v\n"; } ?> ===DONE=== <?php exit(0); ?> --EXPECT-- RecursiveArrayIteratorIterator::rewind RecursiveArrayIteratorIterator::callHasChildren(0) = no/no RecursiveArrayIteratorIterator::valid RecursiveArrayIteratorIterator::current RecursiveArrayIteratorIterator::key 0=>a RecursiveArrayIteratorIterator::next RecursiveArrayIteratorIterator::callHasChildren(0) = yes/yes MyRecursiveArrayIterator::getChildren RecursiveArrayIteratorIterator::beginChildren(1) RecursiveArrayIteratorIterator::callHasChildren(1) = no/no RecursiveArrayIteratorIterator::valid RecursiveArrayIteratorIterator::current RecursiveArrayIteratorIterator::key 0=>ba RecursiveArrayIteratorIterator::next RecursiveArrayIteratorIterator::callHasChildren(1) = yes/yes MyRecursiveArrayIterator::getChildren RecursiveArrayIteratorIterator::beginChildren(2) RecursiveArrayIteratorIterator::callHasChildren(2) = no/no RecursiveArrayIteratorIterator::valid RecursiveArrayIteratorIterator::current RecursiveArrayIteratorIterator::key 0=>bba RecursiveArrayIteratorIterator::next RecursiveArrayIteratorIterator::callHasChildren(2) = no/no RecursiveArrayIteratorIterator::valid RecursiveArrayIteratorIterator::current RecursiveArrayIteratorIterator::key 1=>bbb RecursiveArrayIteratorIterator::next MyRecursiveArrayIterator::valid = false RecursiveArrayIteratorIterator::endChildren(2) RecursiveArrayIteratorIterator::callHasChildren(1) = yes/yes MyRecursiveArrayIterator::getChildren RecursiveArrayIteratorIterator::beginChildren(2) RecursiveArrayIteratorIterator::callHasChildren(2) = no/yes RecursiveArrayIteratorIterator::valid RecursiveArrayIteratorIterator::current RecursiveArrayIteratorIterator::key 0=>bcaa RecursiveArrayIteratorIterator::next RecursiveArrayIteratorIterator::callHasChildren(2) = no/yes RecursiveArrayIteratorIterator::valid RecursiveArrayIteratorIterator::next MyRecursiveArrayIterator::valid = false RecursiveArrayIteratorIterator::endChildren(2) MyRecursiveArrayIterator::valid = false RecursiveArrayIteratorIterator::endChildren(1) RecursiveArrayIteratorIterator::callHasChildren(0) = yes/yes MyRecursiveArrayIterator::getChildren RecursiveArrayIteratorIterator::beginChildren(1) RecursiveArrayIteratorIterator::callHasChildren(1) = no/no RecursiveArrayIteratorIterator::current RecursiveArrayIteratorIterator::key 0=>ca RecursiveArrayIteratorIterator::next MyRecursiveArrayIterator::valid = false RecursiveArrayIteratorIterator::endChildren(1) RecursiveArrayIteratorIterator::callHasChildren(0) = no/no RecursiveArrayIteratorIterator::valid RecursiveArrayIteratorIterator::current RecursiveArrayIteratorIterator::key 3=>d RecursiveArrayIteratorIterator::next MyRecursiveArrayIterator::valid = false RecursiveArrayIteratorIterator::valid MyRecursiveArrayIterator::valid = false ===DONE===