array_merge() function in php || PHP Functions
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array_merge() function in php

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array_merge function of PHP is used to merge the items of two arrays. It combines the arrays in a way that the values of second array is appended into the end of first array.

It is an inbuilt function of PHP.

array_merge function syntax:

array_merge (arr1, arr2, ...,arrN);

Here

arr1, arr2 and arrN are the arrays which we want to merge.

Example 1:

<?php
$arr_1=array("Seeta","Geeta","Raj","Avi");
$arr_2=array("Ram","Shyam","Rahul");
$new_arr=array_merge($arr_1,$arr_2);
print_r($new_arr);
?>

Output:


Example 2:

<?php
$arr_1=array("121"=>"Seeta","122"=>"Ram");
$arr_2=array("1331"=>"Raja","1332"=>"Sattu");
$new_arr=array_merge($arr_1,$arr_2);
print_r($new_arr);
?>

Output:

Remark: If we apply array_merge function on different type arrays means one array is indexed and other is associative then the type of resultant array must be indexed.


Example:

<?php
$arr_1=array("121"=>"Seeta","122"=>"Ram");  // Associative array
$arr_2=array("Raja","Sattu");  // Indexed array
$new_arr=array_merge($arr_1,$arr_2);   // It will be an indexed array
print_r($new_arr);
?>

Output:




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