php add to associative array code example

Example 1: php add to associative array

// for php 5.4+
$data += [$key => $value];

// for php 5.4-
$data += array($key => $value);

Example 2: Associative array in php

<?php 
/* 
There are 3 Types of array in php  
1. Indexed arrays - Arrays with a numeric index
2. Associative arrays - Arrays with named keys
3. Multidimensional arrays - Arrays containing one or more arrays

This is the second one - Associative arrays
*/

$age = array("Samy"=>"35", "Naveen"=>"37", "Amit"=>"43");
echo "Mr.Samy is " . $age['Samy'] . " years old.";

?>

Example 3: php add to existing associative array

$a1=['aa'=>'123' , 'bb'=>'454'];

$a1 = array_merge( $a1 , ['a'=>1,'b'=>2] ) ;

Example 4: php add new item to associative array

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