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-rw-r--r--Zend/tests/bug70547.phpt53
-rw-r--r--Zend/zend_builtin_functions.c24
2 files changed, 59 insertions, 18 deletions
diff --git a/Zend/tests/bug70547.phpt b/Zend/tests/bug70547.phpt
index 195495dcdc..0b9daf869d 100644
--- a/Zend/tests/bug70547.phpt
+++ b/Zend/tests/bug70547.phpt
@@ -2,19 +2,24 @@
Bug #70547 (unsetting function variables corrupts backtrace)
--FILE--
<?php
-function brokenTrace($arg1, $arg2, $arg3){
- backtraceWrapper();
+function brokenTrace($arg1, &$arg2, $arg3){
+ backtraceWrapper();
+ var_dump(func_get_args());
unset($arg3);
- backtraceWrapper();
- unset($arg1);
- backtraceWrapper();
- unset($arg2);
- backtraceWrapper();
+ backtraceWrapper();
+ var_dump(func_get_args());
+ unset($arg1);
+ backtraceWrapper();
+ var_dump(func_get_args());
+ unset($arg2);
+ backtraceWrapper();
+ var_dump(func_get_args());
}
-brokenTrace("1st", "2nd", "3th", "4th");
+$arg2 = "2nd";
+brokenTrace("1st", $arg2, "3th", "4th");
function backtraceWrapper(){
- $bt = debug_backtrace();
- var_dump($bt[1]['args']);
+ $bt = debug_backtrace();
+ var_dump($bt[1]['args']);
}
?>
--EXPECT--
@@ -22,6 +27,16 @@ array(4) {
[0]=>
string(3) "1st"
[1]=>
+ &string(3) "2nd"
+ [2]=>
+ string(3) "3th"
+ [3]=>
+ string(3) "4th"
+}
+array(4) {
+ [0]=>
+ string(3) "1st"
+ [1]=>
string(3) "2nd"
[2]=>
string(3) "3th"
@@ -32,12 +47,26 @@ array(3) {
[0]=>
string(3) "1st"
[1]=>
+ &string(3) "2nd"
+ [2]=>
+ string(3) "4th"
+}
+array(3) {
+ [0]=>
+ string(3) "1st"
+ [1]=>
string(3) "2nd"
[2]=>
string(3) "4th"
}
array(2) {
[0]=>
+ &string(3) "2nd"
+ [1]=>
+ string(3) "4th"
+}
+array(2) {
+ [0]=>
string(3) "2nd"
[1]=>
string(3) "4th"
@@ -46,3 +75,7 @@ array(1) {
[0]=>
string(3) "4th"
}
+array(1) {
+ [0]=>
+ string(3) "4th"
+}
diff --git a/Zend/zend_builtin_functions.c b/Zend/zend_builtin_functions.c
index b0e4f6ab02..3bdc94d7d7 100644
--- a/Zend/zend_builtin_functions.c
+++ b/Zend/zend_builtin_functions.c
@@ -502,9 +502,13 @@ ZEND_FUNCTION(func_get_args)
if (arg_count > first_extra_arg) {
while (i < first_extra_arg) {
q = p;
- ZVAL_DEREF(q);
- if (Z_OPT_REFCOUNTED_P(q)) Z_ADDREF_P(q);
- ZEND_HASH_FILL_ADD(q);
+ if (EXPECTED(Z_TYPE_INFO_P(q) != IS_UNDEF)) {
+ ZVAL_DEREF(q);
+ if (Z_OPT_REFCOUNTED_P(q)) {
+ Z_ADDREF_P(q);
+ }
+ ZEND_HASH_FILL_ADD(q);
+ }
p++;
i++;
}
@@ -512,9 +516,13 @@ ZEND_FUNCTION(func_get_args)
}
while (i < arg_count) {
q = p;
- ZVAL_DEREF(q);
- if (Z_OPT_REFCOUNTED_P(q)) Z_ADDREF_P(q);
- ZEND_HASH_FILL_ADD(q);
+ if (EXPECTED(Z_TYPE_INFO_P(q) != IS_UNDEF)) {
+ ZVAL_DEREF(q);
+ if (Z_OPT_REFCOUNTED_P(q)) {
+ Z_ADDREF_P(q);
+ }
+ ZEND_HASH_FILL_ADD(q);
+ }
p++;
i++;
}
@@ -2233,7 +2241,7 @@ static void debug_backtrace_get_args(zend_execute_data *call, zval *arg_array) /
if (ZEND_CALL_NUM_ARGS(call) > first_extra_arg) {
while (i < first_extra_arg) {
- if (Z_TYPE_INFO_P(p) != IS_UNDEF) {
+ if (EXPECTED(Z_TYPE_INFO_P(p) != IS_UNDEF)) {
if (Z_OPT_REFCOUNTED_P(p)) {
Z_ADDREF_P(p);
}
@@ -2247,7 +2255,7 @@ static void debug_backtrace_get_args(zend_execute_data *call, zval *arg_array) /
}
while (i < num_args) {
- if (Z_TYPE_INFO_P(p) != IS_UNDEF) {
+ if (EXPECTED(Z_TYPE_INFO_P(p) != IS_UNDEF)) {
if (Z_OPT_REFCOUNTED_P(p)) {
Z_ADDREF_P(p);
}