php - complicate array push to the first index -

i have multidimensional array create like

$column = array(  "person#1"=> array ("name"=>"leon" , "age"=>"19" ), "person#2"=> array ("name"=>"gary" , "age"=>"31" ), "person#3"=> array ("name"=>"may" , "age"=>"25" ) ) 

now, want push like

"person#4"=> array ("name"=>"tony" , "age"=>"28" ) 

to first place of array column.

i had into

array_unshift($column, array("person#1"=> array ("name"=>"tony" , "age"=>"28" )); 

it did replace array , variable array, indexed '0' , not person#4 expect

use array_merge():

<?php header('content-type: text/plain');  $column = array( "person#1"=> array ("name"=>"leon" , "age"=>"19" ), "person#2"=> array ("name"=>"gary" , "age"=>"31" ), "person#3"=> array ("name"=>"may" , "age"=>"25" ) );  $column = array_merge(array( "person#4" => array ("name" => "tony" , "age" => "28" )), $column);  var_dump($column); ?> 

shows:

array(4) {   ["person#4"]=>   array(2) {     ["name"]=>     string(4) "tony"     ["age"]=>     string(2) "28"   }   ["person#1"]=>   array(2) {     ["name"]=>     string(4) "leon"     ["age"]=>     string(2) "19"   }   ["person#2"]=>   array(2) {     ["name"]=>     string(4) "gary"     ["age"]=>     string(2) "31"   }   ["person#3"]=>   array(2) {     ["name"]=>     string(3) "may"     ["age"]=>     string(2) "25"   } }