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Array destructuring
-----
<?php
[$a, $b] = [$c, $d];
[, $a, , , $b, ,] = $foo;
[, [[$a]], $b] = $bar;
['a' => $b, 'b' => $a] = $baz;
-----
!!php7
array(
0: Expr_Assign(
var: Expr_Array(
items: array(
0: Expr_ArrayItem(
key: null
value: Expr_Variable(
name: a
)
byRef: false
)
1: Expr_ArrayItem(
key: null
value: Expr_Variable(
name: b
)
byRef: false
)
)
)
expr: Expr_Array(
items: array(
0: Expr_ArrayItem(
key: null
value: Expr_Variable(
name: c
)
byRef: false
)
1: Expr_ArrayItem(
key: null
value: Expr_Variable(
name: d
)
byRef: false
)
)
)
)
1: Expr_Assign(
var: Expr_Array(
items: array(
0: null
1: Expr_ArrayItem(
key: null
value: Expr_Variable(
name: a
)
byRef: false
)
2: null
3: null
4: Expr_ArrayItem(
key: null
value: Expr_Variable(
name: b
)
byRef: false
)
5: null
)
)
expr: Expr_Variable(
name: foo
)
)
2: Expr_Assign(
var: Expr_Array(
items: array(
0: null
1: Expr_ArrayItem(
key: null
value: Expr_Array(
items: array(
0: Expr_ArrayItem(
key: null
value: Expr_Array(
items: array(
0: Expr_ArrayItem(
key: null
value: Expr_Variable(
name: a
)
byRef: false
)
)
)
byRef: false
)
)
)
byRef: false
)
2: Expr_ArrayItem(
key: null
value: Expr_Variable(
name: b
)
byRef: false
)
)
)
expr: Expr_Variable(
name: bar
)
)
3: Expr_Assign(
var: Expr_Array(
items: array(
0: Expr_ArrayItem(
key: Scalar_String(
value: a
)
value: Expr_Variable(
name: b
)
byRef: false
)
1: Expr_ArrayItem(
key: Scalar_String(
value: b
)
value: Expr_Variable(
name: a
)
byRef: false
)
)
)
expr: Expr_Variable(
name: baz
)
)
)