- print_r: documentation ( source)
<?php
$column = array(
"person#1"=> array ("name"=>"Leon" , "Age"=>"19" ),
"person#2"=> array ("name"=>"Gary" , "Age"=>"31" ),
"person#3"=> array ("name"=>"May" , "Age"=>"25" )
);
$new_person=array("person#0"=>array("name"=>"Tony","Age"=>"28"));
print_r($new_person+$column);