1 files changed, 48 insertions, 0 deletions
diff --git a/ext/spl/examples/limititerator.inc b/ext/spl/examples/limititerator.inc
new file mode 100755
index 0000000000..c1a19fedd9
--- /dev/null
+++ b/ext/spl/examples/limititerator.inc
@@ -0,0 +1,48 @@
+<?php
+
+class LimitIterator implements Iterator
+{
+	protected $it;
+	protected $offset;
+	protected $count;
+	protected $index;
+
+	// negative offset is  respected
+	// count === NULL means all
+	function __construct(Iterator $it, $offset = 0, $count = NULL)
+	{
+		$this->it     = $it;
+		$this->offset = $offset;
+		$this->count  = $count;
+		$this->index  = 0;
+	}
+	
+	function rewind()
+	{
+		$this->it->rewind();
+		$this->index = 0;
+		while($this->index < $this->offset && $this->it->hasMore()) {
+			$this->next();
+		}
+	}
+	
+	function hasMore() {
+		return (is_null($this->count) || $this->index < $this->offset + $this->count)
+			 && $this->it->hasMore();
+	}
+	
+	function key() {
+		return $this->it->key();
+	}
+
+	function current() {
+		return $this->it->current();
+	}
+
+	function next() {
+		$this->it->next();
+		$this->index++;
+	}
+}
+
+?>
+\ No newline at end of file