138 lines
2.6 KiB
Plaintext
138 lines
2.6 KiB
Plaintext
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Logical operators
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-----
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<?php
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// boolean ops
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$a && $b;
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$a || $b;
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!$a;
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!!$a;
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// logical ops
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$a and $b;
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$a or $b;
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$a xor $b;
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// precedence
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$a && $b || $c && $d;
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$a && ($b || $c) && $d;
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$a = $b || $c;
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$a = $b or $c;
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-----
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array(
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0: Expr_BinaryOp_BooleanAnd(
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left: Expr_Variable(
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name: a
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)
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right: Expr_Variable(
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name: b
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)
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)
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1: Expr_BinaryOp_BooleanOr(
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left: Expr_Variable(
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name: a
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)
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right: Expr_Variable(
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name: b
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)
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)
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2: Expr_BooleanNot(
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expr: Expr_Variable(
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name: a
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)
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)
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3: Expr_BooleanNot(
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expr: Expr_BooleanNot(
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expr: Expr_Variable(
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name: a
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)
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)
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)
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4: Expr_BinaryOp_LogicalAnd(
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left: Expr_Variable(
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name: a
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)
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right: Expr_Variable(
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name: b
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)
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)
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5: Expr_BinaryOp_LogicalOr(
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left: Expr_Variable(
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name: a
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)
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right: Expr_Variable(
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name: b
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)
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)
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6: Expr_BinaryOp_LogicalXor(
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left: Expr_Variable(
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name: a
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)
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right: Expr_Variable(
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name: b
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)
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)
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7: Expr_BinaryOp_BooleanOr(
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left: Expr_BinaryOp_BooleanAnd(
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left: Expr_Variable(
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name: a
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)
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right: Expr_Variable(
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name: b
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)
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)
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right: Expr_BinaryOp_BooleanAnd(
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left: Expr_Variable(
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name: c
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)
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right: Expr_Variable(
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name: d
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)
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)
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)
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8: Expr_BinaryOp_BooleanAnd(
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left: Expr_BinaryOp_BooleanAnd(
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left: Expr_Variable(
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name: a
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)
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right: Expr_BinaryOp_BooleanOr(
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left: Expr_Variable(
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name: b
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)
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right: Expr_Variable(
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name: c
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)
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)
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)
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right: Expr_Variable(
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name: d
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)
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)
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9: Expr_Assign(
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var: Expr_Variable(
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name: a
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)
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expr: Expr_BinaryOp_BooleanOr(
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left: Expr_Variable(
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name: b
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)
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right: Expr_Variable(
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name: c
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)
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)
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)
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10: Expr_BinaryOp_LogicalOr(
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left: Expr_Assign(
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var: Expr_Variable(
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name: a
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)
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expr: Expr_Variable(
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name: b
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)
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)
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right: Expr_Variable(
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name: c
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)
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)
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)
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