PHP array_merge() Function

PHP array_merge() Function

The array_merger() Function in PHP merges the elements of one or more arrays wherein the values of one are appended to the end of the previous one. It returns the resulting array after merging.

Syntax

array_merge (array[$array1], array[$array1], array[ array $... ] )

Parameter

array1(required)- This parameter represents the input array.

array2(optional)- This parameter signifies the second input array.

…(optional)- It represents one or more list of arrays to merge.

Return

This function returns the resulting array by merging one or more arrays.

Example 1

Output

Array 1: Array
 (
     [0] => Mango
     [1] => Dates
     [2] => Blueberry
     [3] => Orange
 ) 
 Array 2: Array
 (
     [0] => Potato
     [1] => Okra
     [2] => Brinjal
     [3] => Cabbage 
 )
 Merged Array: Array
 (
     [0] => Mango
     [1] => Dates 
     [2] => Blueberry
     [3] => Orange
     [4] => Potato
     [5] => Okra
     [6] => Brinjal
     [7] => Cabbage 
 ) 

Example 2

 array("Name" => "Reema"), 5);
 // initializing array2
 $array2 = array(10, "Student" => array("Name" => "Rakesh", "Mukesh"));
 // merging array1 and array2
 $result_array = array_merge($array1, $array2);
 print_r($result_array);
 ?> 

Output

Array
 (
     [Student] => Array
         (
             [Name] => Rakesh
             [0] => Mukesh
         )
     [0] => 5 
     [1] => 10
 ) 

Example 3

 "PHP");
 $result = array_merge($array1, $array2);
 print_r($result);
 ?> 

Output

Array
 (
     [0] => PHP
 ) 

Example 4

"Earth", 2=>"Saturn", 3=>"Venus", 4=>"Pluto");
 print_r($array1);
 echo("\nArray 2: ");
 //initializing the input array2 
 $array2 = array(1=>"Antarctica", 2=>"South America", 3=>"Europe", 4=>"Africa");
 print_r($array2);
 echo("\nArray 3: ");
 //initializing the input array3
 $array3 = array(1=>"India", 2=>"USA", 3=>"Nepal", 4=>"Russia"); 
 print_r($array3);
 //merging array1, array2 and array3
 $result_aaray = array_merge($array1, $array2,$array3);
 echo("\nMerged Array: ");
 print_r($result_aaray);
 ?> 

Output

Array 1: Array
 (
     [1] => Earth
     [2] => Saturn
     [3] => Venus
     [4] => Pluto
 ) 
 Array 2: Array
 (
     [1] => Antarctica
     [2] => South America
     [3] => Europe
     [4] => Africa 
 )
 Array 3: Array
 (
     [1] => India
     [2] => USA
     [3] => Nepal
     [4] => Russia 
 )
 Merged Array: Array
 (
     [0] => Earth
     [1] => Saturn
     [2] => Venus
     [3] => Pluto 
     [4] => Antarctica
     [5] => South America
     [6] => Europe
     [7] => Africa
     [8] => India
     [9] => USA
     [10] => Nepal 
     [11] => Russia
 )