php add key to array code example

Example 1: php append to array

$myArr = [1, 2, 3, 4];

array_push($myArr, 5, 8);
print_r($myArr); // [1, 2, 3, 4, 5, 8]

$myArr[] = -1;
print_r($myArr); // [1, 2, 3, 4, 5, 8, -1]

Example 2: add item to array in php

<?php

$a=array("red","green");

array_push($a,"blue","yellow");

print_r($a);
?>

Example 3: php array push with key

<?php
$a=array("a"=>"red","b"=>"green");
array_push($a,"blue","yellow");
print_r($a);
?>

Example 4: insert key-value pair into array php

// If you are creating new array then try this :
$arr = array("key" => "value");

// And if array is already created then try this :
$arr["key"] = "value";

Example 5: add object in array php

$myArray = array("name" => "my name");
echo json_encode($myArray);

Example 6: php add new item to associative array

$a = array('foo' => 'bar'); // when you create
$a['Title'] = 'blah'; // later