Difference between array merge and array combine

April 15, 2013
Posted by admin 11:43 PM

 

array_merge merges the elements of one or more than one array such that the value of one array appended at the end of first array. If the arrays have same strings  key  then the later value overrides the previous value for that key .

<?php
$array1 = array("course1" => "java","course2" => "sql");
$array2 = array(("course1" => "php","course3" => "html");
$result array_merge($array1$array2);
print_r($result);
?>

OUTPUT :  

Array

(

[course1] => php

[course2] => sql

[course3] => html

)

Array_combine creates a new array by using the key of one array as keys and using the value of other array as values.

It returns the combine array of array 1 and array2 .

<?php
$array1    = array("course1","course2","course3");
$array2    = array(("php","html","css");

$new_array array_combine($array1$array2);
print_r($new_array);
?>

OUTPUT :

Array

(

[course1]  => php

[course2]    => html

[course3]    =>css

)