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Zend: Warn when destructuring non-array values #19439

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Zend: Warn when destructuring non-array values #19439

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4 changes: 3 additions & 1 deletion Zend/tests/foreach/foreach_list_002.phpt
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,8 @@ foreach($array as list(, $a)) {
--EXPECT--
int(1)
int(3)
string(1) "b"
string(1)

Warning: Cannot use string as array in %s on line %d
NULL
NULL
4 changes: 4 additions & 0 deletions Zend/tests/list/bug39304.phpt
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Expand Up @@ -8,5 +8,9 @@ Bug #39304 (Segmentation fault with list unpacking of string offset)
?>
--EXPECTF--
Warning: Uninitialized string offset 0 in %s on line %d

Warning: Cannot use string as array in %s on line %d

Warning: Cannot use string as array in %s on line %d
NULL
NULL
18 changes: 18 additions & 0 deletions Zend/tests/list/destruct_bool.phpt
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@@ -0,0 +1,18 @@
--TEST--
Destructuring with list() a value of type bool
--FILE--
<?php

$v = true;

list($a, $b) = $v;

var_dump($a, $b);

?>
--EXPECTF--
Warning: Cannot use bool as array in %s on line %d

Warning: Cannot use bool as array in %s on line %d
NULL
NULL
18 changes: 18 additions & 0 deletions Zend/tests/list/destruct_float.phpt
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@@ -0,0 +1,18 @@
--TEST--
Destructuring with list() a value of type float
--FILE--
<?php

$v = 25.64;

list($a, $b) = $v;

var_dump($a, $b);

?>
--EXPECTF--
Warning: Cannot use float as array in %s on line %d

Warning: Cannot use float as array in %s on line %d
NULL
NULL
18 changes: 18 additions & 0 deletions Zend/tests/list/destruct_int.phpt
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@@ -0,0 +1,18 @@
--TEST--
Destructuring with list() a value of type int
--FILE--
<?php

$v = 5;

list($a, $b) = $v;

var_dump($a, $b);

?>
--EXPECTF--
Warning: Cannot use int as array in %s on line %d

Warning: Cannot use int as array in %s on line %d
NULL
NULL
12 changes: 12 additions & 0 deletions Zend/tests/list/destruct_null.phpt
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@@ -0,0 +1,12 @@
--TEST--
Destructuring with list() a value of type null
--FILE--
<?php

list($a) = null;

var_dump($a);

?>
--EXPECT--
NULL
17 changes: 17 additions & 0 deletions Zend/tests/list/destruct_object_not_ArrayAccess.phpt
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@@ -0,0 +1,17 @@
--TEST--
Destructuring with list() a value of type object (that does not implement ArrayAccess)
--FILE--
<?php

$v = new stdClass();

list($a, $b) = $v;

var_dump($a, $b);

?>
--EXPECTF--
Fatal error: Uncaught Error: Cannot use object of type stdClass as array in %s:%d
Stack trace:
#0 {main}
thrown in %s on line %d
18 changes: 18 additions & 0 deletions Zend/tests/list/destruct_resource.phpt
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@@ -0,0 +1,18 @@
--TEST--
Destructuring with list() a value of type resource
--FILE--
<?php

$v = STDERR;

list($a, $b) = $v;

var_dump($a, $b);

?>
--EXPECTF--
Warning: Cannot use resource as array in %s on line %d

Warning: Cannot use resource as array in %s on line %d
NULL
NULL
21 changes: 21 additions & 0 deletions Zend/tests/list/destruct_string.phpt
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@@ -0,0 +1,21 @@
--TEST--
Destructuring with list() a value of type string
--FILE--
<?php

$v = 'hi';

list($a, $b, $c) = $v;

var_dump($a, $b, $c);

?>
--EXPECTF--
Warning: Cannot use string as array in %s on line %d

Warning: Cannot use string as array in %s on line %d

Warning: Cannot use string as array in %s on line %d
NULL
NULL
NULL
24 changes: 0 additions & 24 deletions Zend/tests/list/list_003.phpt
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This file was deleted.

50 changes: 0 additions & 50 deletions Zend/tests/list/list_005.phpt
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This file was deleted.

5 changes: 4 additions & 1 deletion Zend/zend_execute.c
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Expand Up @@ -3005,7 +3005,7 @@ static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_UNSET(z
zend_fetch_dimension_address(result, container_ptr, dim, dim_type, BP_VAR_UNSET EXECUTE_DATA_CC);
}

static zend_always_inline void zend_fetch_dimension_address_read(zval *result, zval *container, zval *dim, int dim_type, int type, bool is_list, int slow EXECUTE_DATA_DC)
static zend_always_inline void zend_fetch_dimension_address_read(zval *result, zval *container, zval *dim, int dim_type, int type, bool is_list, bool slow EXECUTE_DATA_DC)
{
zval *retval;

Expand Down Expand Up @@ -3143,6 +3143,9 @@ static zend_always_inline void zend_fetch_dimension_address_read(zval *result, z
if (ZEND_CONST_COND(dim_type == IS_CV, 1) && UNEXPECTED(Z_TYPE_P(dim) == IS_UNDEF)) {
ZVAL_UNDEFINED_OP2();
}
if (is_list && Z_TYPE_P(container) > IS_NULL) {
zend_error(E_WARNING, "Cannot use %s as array", zend_zval_type_name(container));
}
if (!is_list && type != BP_VAR_IS) {
zend_error(E_WARNING, "Trying to access array offset on %s",
zend_zval_value_name(container));
Expand Down
3 changes: 2 additions & 1 deletion ext/opcache/tests/jit/fetch_list_r_001.phpt
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Expand Up @@ -13,5 +13,6 @@ function test() {
}
test();
?>
--EXPECT--
--EXPECTF--
Warning: Cannot use string as array in %s on line %d
NULL
7 changes: 5 additions & 2 deletions ext/opcache/tests/opt/block_pass_003.phpt
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@@ -1,5 +1,5 @@
--TEST--
Block Pass 003: Inorrect constant substitution in FETCH_LIST_R
Block Pass 003: Incorrect constant substitution in FETCH_LIST_R
--INI--
opcache.enable=1
opcache.enable_cli=1
Expand All @@ -16,5 +16,8 @@ function test() {
test();
?>
DONE
--EXPECT--
--EXPECTF--
Warning: Cannot use int as array in %s on line %d

Warning: Cannot use int as array in %s on line %d
DONE
4 changes: 4 additions & 0 deletions tests/lang/engine_assignExecutionOrder_002.phpt
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Expand Up @@ -116,6 +116,10 @@ array(3) {
int(3000)
}
L=100 M=200 N=300

Warning: Cannot use int as array in %s on line %d

Warning: Cannot use int as array in %s on line %d
O= and P=
10 20 40 50 60 70 80

Expand Down
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