Why Doesn\'t Modifying Array Values in a Foreach Loop Work, and How Can I Fix It?

Barbara Streisand
Release: 2024-11-28 06:08:18
Original
505 people have browsed it

Why Doesn't Modifying Array Values in a Foreach Loop Work, and How Can I Fix It?

Modifying Array Values with Foreach Loops

In your code, you're using a foreach loop to iterate over the $bizaddarray and modify each value using strip_tags, ucwords, and strtolower functions. However, it appears that the HTML tags are still present when you convert the array to a string later. This is because foreach loops by default create a copy of the array elements, so any changes you make to those copies are not reflected in the original array.

Modifying Values Directly

To make the changes permanent, you need to modify the values of the original array directly. There are two ways to achieve this:

Method 1: Using Memory Reference

This method involves using the & operator to obtain a reference to the original array value. Any changes you make through this reference will directly modify the corresponding element in the original array.

foreach ($bizaddarray as &$value) {
    $value = strip_tags(ucwords(strtolower($value)));
}
unset($value); // Remove the reference to prevent unintended modifications
Copy after login

Method 2: Using Source Array

This method involves accessing the source array element using the $key variable. Any changes you make through this element will also update the original array.

foreach ($bizaddarray as $key => $value) {
    $bizaddarray[$key] = strip_tags(ucwords(strtolower($value)));
}
Copy after login

By using either of these methods, the HTML tags should be permanently removed from your array values, and they will be reflected in the string conversion.

The above is the detailed content of Why Doesn\'t Modifying Array Values in a Foreach Loop Work, and How Can I Fix It?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template