Array Splice to cut data from main array and insert new data : PHP

<?php
$name=array("Bobby", "Robby","James","Tobby","Inaya","Jack");
echo "Main Array at the begining <br>";
print_r($name);
echo "<br>New array after Splice<br>";
$newEntry=array("Robin","Tony");
$name1 = array_splice($name,2,-1,$newEntry);
print_r($name1);
echo "<br>Main array after Splice including new entry<br>";
print_r($name);
?>

Main Array at the begining
Array ( [0] => Bobby [1] => Robby [2] => James [3] => Tobby [4] => Inaya [5] => Jack )
New array after Splice
Array ( [0] => James [1] => Tobby [2] => Inaya )
Main array after Splice including new entry
Array ( [0] => Bobby [1] => Robby [2] => Robin [3] => Tony [4] => Jack )