Chris@0: Ternary operator
Chris@0: -----
Chris@0: <?php
Chris@0: 
Chris@0: // ternary
Chris@0: $a ? $b : $c;
Chris@0: $a ?: $c;
Chris@0: 
Chris@0: // precedence
Chris@0: $a ? $b : $c ? $d : $e;
Chris@0: $a ? $b : ($c ? $d : $e);
Chris@0: 
Chris@0: // null coalesce
Chris@0: $a ?? $b;
Chris@0: $a ?? $b ?? $c;
Chris@0: $a ?? $b ? $c : $d;
Chris@0: $a && $b ?? $c;
Chris@0: -----
Chris@0: array(
Chris@13:     0: Stmt_Expression(
Chris@13:         expr: Expr_Ternary(
Chris@0:             cond: Expr_Variable(
Chris@0:                 name: a
Chris@0:                 comments: array(
Chris@13:                     0: // ternary
Chris@0:                 )
Chris@0:             )
Chris@0:             if: Expr_Variable(
Chris@0:                 name: b
Chris@0:             )
Chris@0:             else: Expr_Variable(
Chris@0:                 name: c
Chris@0:             )
Chris@0:             comments: array(
Chris@13:                 0: // ternary
Chris@0:             )
Chris@0:         )
Chris@0:         comments: array(
Chris@13:             0: // ternary
Chris@0:         )
Chris@0:     )
Chris@13:     1: Stmt_Expression(
Chris@13:         expr: Expr_Ternary(
Chris@13:             cond: Expr_Variable(
Chris@13:                 name: a
Chris@13:             )
Chris@13:             if: null
Chris@13:             else: Expr_Variable(
Chris@13:                 name: c
Chris@13:             )
Chris@0:         )
Chris@13:     )
Chris@13:     2: Stmt_Expression(
Chris@13:         expr: Expr_Ternary(
Chris@13:             cond: Expr_Ternary(
Chris@13:                 cond: Expr_Variable(
Chris@13:                     name: a
Chris@13:                     comments: array(
Chris@13:                         0: // precedence
Chris@13:                     )
Chris@13:                 )
Chris@13:                 if: Expr_Variable(
Chris@13:                     name: b
Chris@13:                 )
Chris@13:                 else: Expr_Variable(
Chris@13:                     name: c
Chris@13:                 )
Chris@13:                 comments: array(
Chris@13:                     0: // precedence
Chris@13:                 )
Chris@0:             )
Chris@0:             if: Expr_Variable(
Chris@0:                 name: d
Chris@0:             )
Chris@0:             else: Expr_Variable(
Chris@0:                 name: e
Chris@0:             )
Chris@13:             comments: array(
Chris@13:                 0: // precedence
Chris@13:             )
Chris@13:         )
Chris@13:         comments: array(
Chris@13:             0: // precedence
Chris@0:         )
Chris@0:     )
Chris@13:     3: Stmt_Expression(
Chris@13:         expr: Expr_Ternary(
Chris@13:             cond: Expr_Variable(
Chris@13:                 name: a
Chris@13:             )
Chris@13:             if: Expr_Variable(
Chris@13:                 name: b
Chris@13:             )
Chris@13:             else: Expr_Ternary(
Chris@13:                 cond: Expr_Variable(
Chris@13:                     name: c
Chris@13:                 )
Chris@13:                 if: Expr_Variable(
Chris@13:                     name: d
Chris@13:                 )
Chris@13:                 else: Expr_Variable(
Chris@13:                     name: e
Chris@13:                 )
Chris@13:             )
Chris@13:         )
Chris@13:     )
Chris@13:     4: Stmt_Expression(
Chris@13:         expr: Expr_BinaryOp_Coalesce(
Chris@13:             left: Expr_Variable(
Chris@13:                 name: a
Chris@13:                 comments: array(
Chris@13:                     0: // null coalesce
Chris@13:                 )
Chris@13:             )
Chris@13:             right: Expr_Variable(
Chris@13:                 name: b
Chris@13:             )
Chris@0:             comments: array(
Chris@0:                 0: // null coalesce
Chris@0:             )
Chris@0:         )
Chris@0:         comments: array(
Chris@0:             0: // null coalesce
Chris@0:         )
Chris@0:     )
Chris@13:     5: Stmt_Expression(
Chris@13:         expr: Expr_BinaryOp_Coalesce(
Chris@13:             left: Expr_Variable(
Chris@13:                 name: a
Chris@13:             )
Chris@13:             right: Expr_BinaryOp_Coalesce(
Chris@13:                 left: Expr_Variable(
Chris@13:                     name: b
Chris@13:                 )
Chris@13:                 right: Expr_Variable(
Chris@13:                     name: c
Chris@13:                 )
Chris@13:             )
Chris@0:         )
Chris@13:     )
Chris@13:     6: Stmt_Expression(
Chris@13:         expr: Expr_Ternary(
Chris@13:             cond: Expr_BinaryOp_Coalesce(
Chris@13:                 left: Expr_Variable(
Chris@13:                     name: a
Chris@13:                 )
Chris@13:                 right: Expr_Variable(
Chris@13:                     name: b
Chris@13:                 )
Chris@13:             )
Chris@13:             if: Expr_Variable(
Chris@13:                 name: c
Chris@13:             )
Chris@13:             else: Expr_Variable(
Chris@13:                 name: d
Chris@13:             )
Chris@13:         )
Chris@13:     )
Chris@13:     7: Stmt_Expression(
Chris@13:         expr: Expr_BinaryOp_Coalesce(
Chris@13:             left: Expr_BinaryOp_BooleanAnd(
Chris@13:                 left: Expr_Variable(
Chris@13:                     name: a
Chris@13:                 )
Chris@13:                 right: Expr_Variable(
Chris@13:                     name: b
Chris@13:                 )
Chris@0:             )
Chris@0:             right: Expr_Variable(
Chris@0:                 name: c
Chris@0:             )
Chris@0:         )
Chris@0:     )
Chris@0: )