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@0:     0: Expr_Isset(
Chris@0:         vars: array(
Chris@0:             0: Expr_ArrayDimFetch(
Chris@0:                 var: Expr_BinaryOp_Plus(
Chris@0:                     left: Expr_Array(
Chris@0:                         items: array(
Chris@0:                             0: Expr_ArrayItem(
Chris@0:                                 key: null
Chris@0:                                 value: Scalar_LNumber(
Chris@0:                                     value: 0
Chris@0:                                 )
Chris@0:                                 byRef: false
Chris@0:                             )
Chris@0:                             1: Expr_ArrayItem(
Chris@0:                                 key: null
Chris@0:                                 value: Scalar_LNumber(
Chris@0:                                     value: 1
Chris@0:                                 )
Chris@0:                                 byRef: false
Chris@0:                             )
Chris@0:                         )
Chris@0:                     )
Chris@0:                     right: Expr_Array(
Chris@0:                         items: array(
Chris@0:                         )
Chris@0:                     )
Chris@0:                 )
Chris@0:                 dim: Scalar_LNumber(
Chris@0:                     value: 0
Chris@0:                 )
Chris@0:             )
Chris@0:         )
Chris@0:     )
Chris@0:     1: Expr_Isset(
Chris@0:         vars: array(
Chris@0:             0: Expr_PropertyFetch(
Chris@0:                 var: Expr_Array(
Chris@0:                     items: array(
Chris@0:                         0: Expr_ArrayItem(
Chris@0:                             key: Scalar_String(
Chris@0:                                 value: a
Chris@0:                             )
Chris@0:                             value: Scalar_String(
Chris@0:                                 value: b
Chris@0:                             )
Chris@0:                             byRef: false
Chris@0:                         )
Chris@0:                     )
Chris@0:                 )
Chris@0:                 name: a
Chris@0:             )
Chris@0:         )
Chris@0:     )
Chris@0:     2: Expr_Isset(
Chris@0:         vars: array(
Chris@0:             0: Expr_PropertyFetch(
Chris@0:                 var: Scalar_String(
Chris@0:                     value: str
Chris@0:                 )
Chris@0:                 name: a
Chris@0:             )
Chris@0:         )
Chris@0:     )
Chris@0: )