Chris@13: Expression statement mode
Chris@13: -----
Chris@13: <?php
Chris@13: $a = $b;
Chris@13: yield $x;
Chris@13: -----
Chris@13: !!exprStmts
Chris@13: array(
Chris@13:     0: Stmt_Expression(
Chris@13:         expr: Expr_Assign(
Chris@13:             var: Expr_Variable(
Chris@13:                 name: a
Chris@13:             )
Chris@13:             expr: Expr_Variable(
Chris@13:                 name: b
Chris@13:             )
Chris@13:         )
Chris@13:     )
Chris@13:     1: Stmt_Expression(
Chris@13:         expr: Expr_Yield(
Chris@13:             key: null
Chris@13:             value: Expr_Variable(
Chris@13:                 name: x
Chris@13:             )
Chris@13:         )
Chris@13:     )
Chris@13: )
Chris@13: -----
Chris@13: <?php
Chris@13: $a = $b
Chris@13: $c = $d
Chris@13: -----
Chris@13: !!exprStmts
Chris@13: Syntax error, unexpected T_VARIABLE from 3:1 to 3:2
Chris@13: Syntax error, unexpected EOF from 3:8 to 3:8
Chris@13: array(
Chris@13:     0: Stmt_Expression(
Chris@13:         expr: Expr_Assign(
Chris@13:             var: Expr_Variable(
Chris@13:                 name: a
Chris@13:             )
Chris@13:             expr: Expr_Variable(
Chris@13:                 name: b
Chris@13:             )
Chris@13:         )
Chris@13:     )
Chris@13:     1: Stmt_Expression(
Chris@13:         expr: Expr_Assign(
Chris@13:             var: Expr_Variable(
Chris@13:                 name: c
Chris@13:             )
Chris@13:             expr: Expr_Variable(
Chris@13:                 name: d
Chris@13:             )
Chris@13:         )
Chris@13:     )
Chris@13: )