merge two array

let arr1 = [0, 1, 2];
let arr2 = [3, 5, 7];
let primes = arr1.concat(arr2);

// > [0, 1, 2, 3, 5, 7]

var arrays = [
  ["$6"],
  ["$12"],
  ["$25"],
  ["$25"],
  ["$18"],
  ["$22"],
  ["$10"]
];
var merged = [].concat.apply([], arrays);

console.log(merged);
 Run code snippet

<?php
$arr1 = array("Geeks", "g4g");
$arr2 = array("GeeksforGeeks", "Computer science portal");
  
// Get the merged array in the first array itself.
$arr1 = array_merge($arr1, $arr2); 
  
echo "arr1 Contents:";
  
// Use for each loop to print all the array elements.
foreach ($arr1 as $value) {
    echo $value . "\n";
}
?>