How to change the value in an array in php

php method to change the value in the array: 1. Create a new php file and set the encoding format of the page to utf-8, with the syntax "header("Content-type:text/html;charset=utf -8");"; 2. Create an array and use foreach loop to traverse the array, the syntax is "foreach ($arr as $k=>$v){//Loop body statement block;}"; 3. By giving Just reassign the index position to modify the element value of the array.

The operating environment of this article: windows7 system, PHP8 version, DELL G3 computer

Create a php file named test.php for Explain how PHP modifies the values ​​in an array.

In the test.php file, use the header() method to set the encoding format of the page to utf-8.

In the test.php file, create an array for testing.

In the test.php file, use a foreach loop to traverse the array, find the index whose element value is b, and then reassign the index position to modify the elements of the array. value. For example, change array element b to bb.

In the test.php file, use print_r to output the array.

Open the test.php file in the browser to view the results.

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