unshift in php

1
2<?php
3	$a=array("a"=>"red","b"=>"green");
4	array_unshift($a,"blue");
5	print_r($a);
6// result : Array ( [0] => blue [a] => red [b] => green )
7
8?>
9

1
2<?php
3
4 $a=array("a"=>"red","b"=>"green");
5array_unshift($a,"blue");
6print_r($a);
7
8?>
9