$array1 = array("red", "green", "blue"); $array2 = array("yellow", "orange", "purple"); $array3 = array("pink", "brown", "black"); // Merging all three arrays into a single array $mergedArray = array_merge($array1, $array2, $array3); // Printing the merged array print_r($mergedArray);
Array ( [0] => red [1] => green [2] => blue [3] => yellow [4] => orange [5] => purple [6] => pink [7] => brown [8] => black )Explanation: In the above example, we have three arrays named `array1`, `array2`, and `array3`. We have merged all three arrays into a single array using the `array_merge()` function. The resulting array `mergedArray` contains all the elements of `array1`, `array2`, and `array3`. Package Library: The `array_merge()` function is a built-in PHP function and does not require any external package or library.