1Named arguments 2----- 3<?php 4foo( 5 a: $b, 6); 7----- 8$stmts[0]->expr->args[0]->name = null; 9----- 10<?php 11foo( 12 $b, 13); 14----- 15<?php 16foo( 17 $b, 18); 19----- 20$stmts[0]->expr->args[0]->name = new Node\Identifier('a'); 21----- 22<?php 23foo( 24 a: $b, 25); 26----- 27<?php 28foo( 29 a: 30 $b, 31); 32----- 33$stmts[0]->expr->args[0]->name = new Node\Identifier('XYZ'); 34----- 35<?php 36foo( 37 XYZ: 38 $b, 39);