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
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isset() and empty()
-----
<?php
isset($a);
isset($a, $b, $c);
empty($a);
empty(foo());
empty(array(1, 2, 3));
-----
array(
0: Stmt_Expression(
expr: Expr_Isset(
vars: array(
0: Expr_Variable(
name: a
)
)
)
)
1: Stmt_Expression(
expr: Expr_Isset(
vars: array(
0: Expr_Variable(
name: a
)
1: Expr_Variable(
name: b
)
2: Expr_Variable(
name: c
)
)
)
)
2: Stmt_Expression(
expr: Expr_Empty(
expr: Expr_Variable(
name: a
)
)
)
3: Stmt_Expression(
expr: Expr_Empty(
expr: Expr_FuncCall(
name: Name(
name: foo
)
args: array(
)
)
)
)
4: Stmt_Expression(
expr: Expr_Empty(
expr: Expr_Array(
items: array(
0: ArrayItem(
key: null
value: Scalar_Int(
value: 1
)
byRef: false
unpack: false
)
1: ArrayItem(
key: null
value: Scalar_Int(
value: 2
)
byRef: false
unpack: false
)
2: ArrayItem(
key: null
value: Scalar_Int(
value: 3
)
byRef: false
unpack: false
)
)
)
)
)
)
|