PHP Merge Arrays and Append Arrays Example_PHP Tutorial

We can use the array_merge() function to merge arrays in PHP. The array_merge() function returns a combined array. The resulting array starts with the first input array parameter and is appended in the order in which subsequent array parameters appear. Its form is:

　array array_merge (array array1 array2…,arrayN)

The following is an example of merging arrays in PHP:

　1

　2$fruits = array("apple","banana","pear");

　3$numbered = array("1","2","3");

　4$cards = array_merge($fruits, $numbered);

　5print_r($cards);

　6// Output result:

　7// Array ( [0] => apple [1] => banana [2] => pear [3] => 1 [4] => 2 [5] => 3 )

　8?>

Use PHP to append an array and use array_merge_recursive() to merge the two arrays together. Note that it is different from the array_merge() function. When the two arrays of array_merge() have duplicate items, they will be overwritten, while array_merge_recursive () will not. array_merge_recursive() syntax:

　array array_merge_recursive(array array1,array array2[…,array arrayN])

The following is an example of appending an array in PHP:

　1

　2$fruit1 = array("apple" => "red", "banana" => "yellow");

　3$fruit2 = array("pear" => "yellow", "apple" => "green");

　4$result = array_merge_recursive($fruit1, $fruit2);

　5print_r($result);

　6// Output result:

　7// Array ( [apple] => Array ( [0] => red [1] => green ) [banana] => yellow [pear] => yellow )

　8?>

Now apple points to an array, an indexed array consisting of two color values.