push array based on key value php code example

Example 1: 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 2: php array push key value

<?php
$image[0] = $image[0].','.$filename;
?>