From 993e1866df547532a05ab6db76c9ff5aefc9a3df Mon Sep 17 00:00:00 2001
From: "Mark A. Hershberger" <mah@debian.(none)>
Date: Wed, 25 Mar 2009 00:39:08 -0400
Subject: Imported Upstream version 5.2.6

---
 .../tests/array/array_shift_variation8.phpt        | 50 ++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 ext/standard/tests/array/array_shift_variation8.phpt

(limited to 'ext/standard/tests/array/array_shift_variation8.phpt')

diff --git a/ext/standard/tests/array/array_shift_variation8.phpt b/ext/standard/tests/array/array_shift_variation8.phpt
new file mode 100644
index 000000000..717d98fad
--- /dev/null
+++ b/ext/standard/tests/array/array_shift_variation8.phpt
@@ -0,0 +1,50 @@
+--TEST--
+Test array_shift() function : usage variations - maintaining referenced elements
+--FILE--
+<?php
+/* Prototype  : mixed array_shift(array &$stack)
+ * Description: Pops an element off the beginning of the array 
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * From a comment left by Traps on 09-Jul-2007 on the array_shift documentation page:
+ * For those that may be trying to use array_shift() with an array containing references 
+ * (e.g. working with linked node trees), beware that array_shift() may not work as you expect: 
+ * it will return a *copy* of the first element of the array, 
+ * and not the element itself, so your reference will be lost.
+ * The solution is to reference the first element before removing it with array_shift():
+ */
+
+echo "*** Testing array_shift() : usage variations ***\n";
+
+// using only array_shift:
+echo "\n-- Reference result of array_shift: --\n";
+$a = 1;
+$array = array(&$a);
+$b =& array_shift($array);
+$b = 2;
+echo "a = $a, b = $b\n";
+
+// solution: referencing the first element first:
+echo "\n-- Reference first element before array_shift: --\n";
+$a = 1;
+$array = array(&$a);
+$b =& $array[0];
+array_shift($array);
+$b = 2;
+echo "a = $a, b = $b\n";
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_shift() : usage variations ***
+
+-- Reference result of array_shift: --
+
+Strict Standards: Only variables should be assigned by reference in %s on line %d
+a = 1, b = 2
+
+-- Reference first element before array_shift: --
+a = 2, b = 2
+Done
\ No newline at end of file
-- 
cgit v1.2.3