Analysis of common function examples of adding and deleting elements in PHP arrays

This article mainly introduces the PHP array to add and delete the common functions of the unit, examples of Array_push, Array_pop, Array_shift and array_unshift functions such as the use of skills, the need for friends can refer to the

In this paper, we analyze the common functions of adding and removing elements of PHP array. Share to everyone for your reference. The specific analysis is as follows:

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<?php header ("Content-type:text/html;charset=utf-8"); $arr = Array ("A" => "horse", "B" => "Cat", "C" => "Dog"); Array_push ($arr, "Hello", "World"); Array_push one or more units into the end of the array print_r ($arr);   echo "<br/>"; Array_pop (): Deletes the last cell of the array array_pop ($arr); Print_r ($arr);   echo "<br/>"; Array_shift (): Deletes the first cell of the array array_shift ($arr); Print_r ($arr);   echo "<br/>"; Array_unshift (): Adds one or more cell array_unshift ($arr, "Horse") at the beginning of the array; Print_r ($arr);?>

I hope this article will help you with your PHP program design.