list() Unpacking in foreach Declaration

[WyrdNexus]

list() Unpacking in foreach Declaration Affects Syntax Error

PHP Feature added in 5.5, so likely simply hasn't been reviewed yet. http://php.net/manual/en/control-structures.foreach.php#control-structures.foreach.list

foreach unpacking with list()

$array = new array(
    "X" => ['one',2,3],
    "Y" => ['two',4,5]
);

// case 1:
foreach( $array as list($a, $b )) {  // Syntax error, unexpected T_LIST
    echo "\n$a $b";
}

// case 2:
foreach( $array as $key => list($a, $b, $c) ) {  // Syntax error, unexpected T_LIST
    echo "\n$key: $a $b - $c";
}

Output:

one 2 two 4 X: one 2 - 3 Y: two 4 - 5

[WyrdNexus]

Perhaps adding 2 entries to grammar/zend_language_parser.jsy (192):

| T_FOREACH '(' expr T_AS T_LIST ')' foreach_statement
          { $$ = Stmt_Foreach[$3, $5, [keyVar: null, byRef: false, stmts: $7]]; }
| T_FOREACH '(' expr T_AS variable T_DOUBLE_ARROW T_LIST ')' foreach_statement
          { $$ = Stmt_Foreach[$3, $6, [keyVar: $5, byRef: $7, stmts: $8]]; }

... i'm just guessing here, but I'll play with it if I have time to review all of your Rep, and you don't get to it.