1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
--TEST--
Evaluation order during assignments.
--FILE--
<?php
// simple case with missing element
$f = array("hello","item2","bye");
list($a,,$b) = $f;
echo "A=$a B=$b\n";
// Warning: Cannot use a scalar value as an array in %s on line %d
try {
$c[$c=1] = 1;
} catch (Error $e) {
echo $e->getMessage(), "\n";
}
// i++ evaluated first, so $d[0] is 10
$d = array(0,10);
$i = 0;
$d[$i++] = $i*10;
// expected array is 10,10
var_dump($d);
// the f++++ makes f into 2, so $e 0 and 1 should both be 30
$e = array(0,0);
$f = 0;
$g1 = array(10,10);
$g2 = array(20,20);
$g3 = array(30,30);
$g = array($g1,$g2,$g3);
list($e[$f++],$e[$f++]) = $g[2];
// expect 30,30
var_dump($e);
$i1 = array(1,2);
$i2 = array(10,20);
$i3 = array(100,200);
$i4 = array(array(1000,2000),3000);
$i = array($i1,$i2,$i3,$i4);
$j = array(0,0,0);
$h = 0;
// a list of lists
list(list($j[$h++],$j[$h++]),$j[$h++]) = $i[3];
var_dump($j);
// list of lists with just variable assignments - expect 100,200,300
$k3 = array(100,200);
$k = array($k3,300);
list(list($l,$m),$n) = $k;
echo "L=$l M=$m N=$n\n";
// expect $x and $y to be null - this fails on php.net 5.2.1 (invalid opcode) - fixed in 5.2.3
list($o,$p) = 20;
echo "O=$o and P=$p\n";
// list of lists with blanks and nulls expect 10 20 40 50 60 70 80
$q1 = array(10,20,30,40);
$q2 = array(50,60);
$q3 = array($q1,$q2,null,70);
$q4 = array($q3,null,80);
list(list(list($r,$s,,$t),list($u,$v),,$w),,$x) = $q4;
echo "$r $s $t $u $v $w $x\n";
// expect y and z to be undefined
list($y,$z) = array();
echo "Y=$y,Z=$z\n";
// expect h to be defined and be 10
list($aa,$bb) = array(10);
echo "AA=$aa\n";
// expect cc and dd to be 10 and 30
list($cc,,$dd) = array(10,20,30,40);
echo "CC=$cc DD=$dd\n";
// expect the inner array to be defined
$ee = array("original array");
function f() {
global $ee;
$ee = array("array created in f()");
return 1;
}
$ee["array entry created after f()"][f()] = "hello";
print_r($ee);
?>
--EXPECTF--
A=hello B=bye
Cannot use a scalar value as an array
array(2) {
[0]=>
int(10)
[1]=>
int(10)
}
array(2) {
[0]=>
int(30)
[1]=>
int(30)
}
array(3) {
[0]=>
int(1000)
[1]=>
int(2000)
[2]=>
int(3000)
}
L=100 M=200 N=300
O= and P=
10 20 40 50 60 70 80
Notice: Undefined array key 0 in %s on line %d
Notice: Undefined array key 1 in %s on line %d
Y=,Z=
Notice: Undefined array key 1 in %s on line %d
AA=10
CC=10 DD=30
Array
(
[0] => array created in f()
[array entry created after f()] => Array
(
[1] => hello
)
)
|
