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authorNikita Popov <nikic@php.net>2014-09-20 21:46:25 +0200
committerNikita Popov <nikic@php.net>2014-09-20 21:46:25 +0200
commit5e977e69e144ca92868ae73cd3563eb473b75937 (patch)
treedad319f76039e3c523106f3313505988953d8c1b
parent5d9403f56c14fefafa558b7de45f132a4d3f5fde (diff)
downloadphp-git-5e977e69e144ca92868ae73cd3563eb473b75937.tar.gz
Fixed bug #67633
-rw-r--r--NEWS2
-rw-r--r--Zend/tests/bug67633.phpt44
-rw-r--r--Zend/zend_compile.c9
3 files changed, 55 insertions, 0 deletions
diff --git a/NEWS b/NEWS
index 3fc0f8045d..50d2707e6c 100644
--- a/NEWS
+++ b/NEWS
@@ -7,6 +7,8 @@ PHP NEWS
unset). (Tjerk)
. Fixed bug #67739 (Windows 8.1/Server 2012 R2 OS build number reported
as 6.2 (instead of 6.3)). (Christian Wenz)
+ . Fixed bug #67633 (A foreach on an array returned from a function not doing
+ copy-on-write). (Nikita)
- FPM:
. Fixed bug #65641 (PHP-FPM incorrectly defines the SCRIPT_NAME variable
diff --git a/Zend/tests/bug67633.phpt b/Zend/tests/bug67633.phpt
new file mode 100644
index 0000000000..a9e05d10ab
--- /dev/null
+++ b/Zend/tests/bug67633.phpt
@@ -0,0 +1,44 @@
+--TEST--
+Bug #67633: A foreach on an array returned from a function not doing copy-on-write
+--FILE--
+<?php
+
+function id($x) {
+ return $x;
+}
+
+function &ref_id(&$x) {
+ return $x;
+}
+
+$c = 'c';
+$array = ['a', 'b', $c];
+
+foreach(id($array) as &$v) {
+ $v .= 'q';
+}
+var_dump($array);
+
+foreach(ref_id($array) as &$v) {
+ $v .= 'q';
+}
+var_dump($array);
+
+?>
+--EXPECT--
+array(3) {
+ [0]=>
+ string(1) "a"
+ [1]=>
+ string(1) "b"
+ [2]=>
+ string(1) "c"
+}
+array(3) {
+ [0]=>
+ string(2) "aq"
+ [1]=>
+ string(2) "bq"
+ [2]=>
+ &string(2) "cq"
+}
diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index 0ac3bceddc..bd3e1dd813 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -6231,6 +6231,15 @@ void zend_do_foreach_begin(znode *foreach_token, znode *open_brackets_token, zno
/* save the location of FETCH_W instruction(s) */
open_brackets_token->u.op.opline_num = get_next_op_number(CG(active_op_array));
zend_do_end_variable_parse(array, BP_VAR_W, 0 TSRMLS_CC);
+
+ if (zend_is_function_or_method_call(array)) {
+ opline = get_next_op(CG(active_op_array) TSRMLS_CC);
+ opline->opcode = ZEND_SEPARATE;
+ SET_NODE(opline->op1, array);
+ SET_UNUSED(opline->op2);
+ opline->result_type = IS_VAR;
+ opline->result.var = opline->op1.var;
+ }
} else {
is_variable = 0;
open_brackets_token->u.op.opline_num = get_next_op_number(CG(active_op_array));