How to Push Both Value and Key Into PHP Array

We will look at the method to push a key and corresponding value to a PHP array using the square bracket array initialization method.

We will look at different ways to push a key and corresponding value to a PHP array using the array_merge method, the array object, the compound assignment operators, the parse_str method and the array_push method.

Push Key and Value to PHP Array Using Square Bracket Array Initialization Method

We will initialize an empty array then add a key-value pair to the square brackets initialization.

<?php
    $array_test = [];
    $array_test['name'] = "Kevin Amayi";
    print_r($array_test);
?>

Output:

Array ( [name] => Kevin Amayi ) 

Push Key and Value to PHP Array Using Array object

We will initialize an array with the corresponding key and value using the array object.

<?php
    $array_test = array("firstname" => "Kevin","lastname" => "Amayi");
    print_r($array_test);
?>

Output:

Array ( [firstname] => Kevin [lastname] => Amayi ) 

Push Key and Value to PHP Array Using array_merge Method

We will directly initialize an array with two values then use the array_merge method to add a new value with the corresponding key.

<?php
    $array_test = array("firstname" => "Kevin","lastname" => "Amayi");
    $array_test = array_merge($array_test, ['occupation1' => "blogger"]);
    $array_test = array_merge($array_test, ['occupation2' => "programmer"]);
    print_r($array_test);
?>

Output:

Array ( [firstname] => Kevin [lastname] => Amayi [occupation1] => blogger [occupation2] => programmer ) 

Push Key and Value to PHP Array Using Compound Assignment Operators

We will initialize an empty array then use compound assignment to add new key-value pair in the array.

<?php
    $profile = [];
    $profile += [ "name" => "Kevin" ];
    $profile += [ "Age" => 23 ];
    $profile += [ "Hobby" => "Football" ];
    print_r($profile);
?>

Output:

Array ( [name] => Kevin [Age] => 23 [Hobby] => Football ) 

Push Key and Value to PHP Array Using parse_str Method

We will initialize an empty array then use the parse_str method to add new key-value pair in the array.

<?php
    $profile = [];
    parse_str("name=Kevin&age=23",$profile);
    print_r($profile);
?>

Output:

Array ( [name] => Kevin [age] => 23 ) 

Push Key and Value to PHP Array Using array_push Method

We will directly initialize an array with two values then use the array_push method to add a new value with the corresponding key.

<?php
    $array_test = array("Kevin", "Amayi");
    array_push($array_test, ["occupation1" => "Blogger"],["occupation2" => "Programmer"]);
    print_r($array_test);
?>

Output:

Array ( [0] => Kevin [1] => Amayi [2] => Array ( [occupation1] => Blogger ) [3] => Array ( [occupation2] => Programmer) )