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+--TEST--
+Test array_values() function : usage variations - multi-dimensional arrays
+--FILE--
+<?php
+/* Prototype : array array_values(array $input)
+ * Description: Return just the values from the input array
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Test array_values when:
+ * 1. Passed a two-dimensional array as $input argument
+ * 2. Passed a sub-array as $input argument
+ * 3. Passed an infinitely recursive multi-dimensional array
+ */
+
+echo "*** Testing array_values() : usage variations ***\n";
+
+$input = array ('zero' => 'zero', 'un' => 'one', 'sub' => array (1, 2, 3));
+
+echo "\n-- Array values of a two-dimensional array --\n";
+var_dump(array_values($input));
+
+echo "\n-- Array values of a sub-array --\n";
+var_dump(array_values($input['sub']));
+
+// get an infinitely recursive array
+$input[] = &$input;
+echo "\n-- Array values of an infinitely recursive array --\n";
+var_dump(array_values($input));
+
+// break cycle
+$input[0] = null;
+
+echo "Done";
+?>
+
+--EXPECTF--
+*** Testing array_values() : usage variations ***
+
+-- Array values of a two-dimensional array --
+array(3) {
+ [0]=>
+ string(4) "zero"
+ [1]=>
+ string(3) "one"
+ [2]=>
+ array(3) {
+ [0]=>
+ int(1)
+ [1]=>
+ int(2)
+ [2]=>
+ int(3)
+ }
+}
+
+-- Array values of a sub-array --
+array(3) {
+ [0]=>
+ int(1)
+ [1]=>
+ int(2)
+ [2]=>
+ int(3)
+}
+
+-- Array values of an infinitely recursive array --
+array(4) {
+ [0]=>
+ string(4) "zero"
+ [1]=>
+ string(3) "one"
+ [2]=>
+ array(3) {
+ [0]=>
+ int(1)
+ [1]=>
+ int(2)
+ [2]=>
+ int(3)
+ }
+ [3]=>
+ &array(4) {
+ ["zero"]=>
+ string(4) "zero"
+ ["un"]=>
+ string(3) "one"
+ ["sub"]=>
+ array(3) {
+ [0]=>
+ int(1)
+ [1]=>
+ int(2)
+ [2]=>
+ int(3)
+ }
+ [0]=>
+ &array(4) {
+ ["zero"]=>
+ string(4) "zero"
+ ["un"]=>
+ string(3) "one"
+ ["sub"]=>
+ array(3) {
+ [0]=>
+ int(1)
+ [1]=>
+ int(2)
+ [2]=>
+ int(3)
+ }
+ [0]=>
+ *RECURSION*
+ }
+ }
+}
+Done