how to push string item forloop into an empty array in php 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);
?>