1 files changed, 47 insertions, 0 deletions
diff --git a/ext/standard/tests/array/key_basic.phpt b/ext/standard/tests/array/key_basic.phpt
new file mode 100644
index 0000000..8fdca19
--- /dev/null
+++ b/ext/standard/tests/array/key_basic.phpt
@@ -0,0 +1,47 @@
+--TEST--
+Test key() function : basic functionality 
+--FILE--
+<?php
+/* Prototype  : mixed key(array $array_arg)
+ * Description: Return the key of the element currently pointed to by the internal array pointer
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Test basic functionality of key()
+ */
+
+echo "*** Testing key() : basic functionality ***\n";
+
+$array = array ('zero', 99 => 'one', 'two', 'three' => 3);
+echo "\n-- Initial Position: --\n";
+var_dump(key($array));
+
+echo "\n-- Next Position: --\n";
+next($array);
+var_dump(key($array));
+
+echo "\n-- End Position: --\n";
+end($array);
+var_dump(key($array));
+
+echo "\n-- Past end of the array --\n";
+next($array);
+var_dump(key($array));
+?>
+===DONE===
+--EXPECTF--
+*** Testing key() : basic functionality ***
+
+-- Initial Position: --
+int(0)
+
+-- Next Position: --
+int(99)
+
+-- End Position: --
+string(5) "three"
+
+-- Past end of the array --
+NULL
+===DONE===