Chris@0: UVS isset() on temporaries
Chris@0: -----
Chris@0: <?php
Chris@0: 
Chris@0: isset(([0, 1] + [])[0]);
Chris@0: isset(['a' => 'b']->a);
Chris@0: isset("str"->a);
Chris@0: -----
Chris@0: !!php7
Chris@0: array(
Chris@13:     0: Stmt_Expression(
Chris@13:         expr: Expr_Isset(
Chris@13:             vars: array(
Chris@13:                 0: Expr_ArrayDimFetch(
Chris@13:                     var: Expr_BinaryOp_Plus(
Chris@13:                         left: Expr_Array(
Chris@13:                             items: array(
Chris@13:                                 0: Expr_ArrayItem(
Chris@13:                                     key: null
Chris@13:                                     value: Scalar_LNumber(
Chris@13:                                         value: 0
Chris@13:                                     )
Chris@13:                                     byRef: false
Chris@13:                                 )
Chris@13:                                 1: Expr_ArrayItem(
Chris@13:                                     key: null
Chris@13:                                     value: Scalar_LNumber(
Chris@13:                                         value: 1
Chris@13:                                     )
Chris@13:                                     byRef: false
Chris@13:                                 )
Chris@13:                             )
Chris@13:                         )
Chris@13:                         right: Expr_Array(
Chris@13:                             items: array(
Chris@13:                             )
Chris@13:                         )
Chris@13:                     )
Chris@13:                     dim: Scalar_LNumber(
Chris@13:                         value: 0
Chris@13:                     )
Chris@13:                 )
Chris@13:             )
Chris@13:         )
Chris@13:     )
Chris@13:     1: Stmt_Expression(
Chris@13:         expr: Expr_Isset(
Chris@13:             vars: array(
Chris@13:                 0: Expr_PropertyFetch(
Chris@13:                     var: Expr_Array(
Chris@0:                         items: array(
Chris@0:                             0: Expr_ArrayItem(
Chris@13:                                 key: Scalar_String(
Chris@13:                                     value: a
Chris@0:                                 )
Chris@13:                                 value: Scalar_String(
Chris@13:                                     value: b
Chris@0:                                 )
Chris@0:                                 byRef: false
Chris@0:                             )
Chris@0:                         )
Chris@0:                     )
Chris@13:                     name: Identifier(
Chris@13:                         name: a
Chris@0:                     )
Chris@0:                 )
Chris@0:             )
Chris@0:         )
Chris@0:     )
Chris@13:     2: Stmt_Expression(
Chris@13:         expr: Expr_Isset(
Chris@13:             vars: array(
Chris@13:                 0: Expr_PropertyFetch(
Chris@13:                     var: Scalar_String(
Chris@13:                         value: str
Chris@13:                     )
Chris@13:                     name: Identifier(
Chris@13:                         name: a
Chris@0:                     )
Chris@0:                 )
Chris@0:             )
Chris@0:         )
Chris@0:     )
Chris@13: )