How to scramble an array in PHP

The method for PHP to implement shuffled arrays is: 1. Create a PHP sample file; 2. Define an array $arr; 3. Use the "shuffle" function to shuffle the array "shuffle($arr)"; 4. , just output the scrambled array.

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

You can use the built-in function shuffle() in PHP to randomly shuffle the order of the array.

Benefits:

Shuffling the array can make the data more dispersed and evenly arranged. If the order in the array affects the algorithm or program results, shuffling the array can eliminate the error in the result. , thereby improving the accuracy of algorithms and programs.

Code example:

```php
<?php
    //定义数组
    $arr = array(&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;, &#39;e&#39;, &#39;f&#39;, &#39;g&#39;);
    //将数组顺序打乱
    shuffle($arr);
    //输出打乱后的数组
    print_r($arr);
?>
```

The result of the above code is similar to the following:

Array (
        [0] => d
        [1] => c 
        [2] => f
        [3] => e
        [4] => a
        [5] => b
        [6] => g

The above is the detailed content of How to scramble an array in PHP. For more information, please follow other related articles on the PHP Chinese website!