Regular Expressions - PHP, how to do regular replacement?

In PHP, using regular expressions for replacement is a powerful text processing tool. Regular expressions help us match and replace strings based on specific patterns. This article will show you how to use regular expressions for replacement in PHP, with appropriate source code examples.

In PHP, we can use the preg_replace function to perform regular replacement operations. The basic syntax of this function is as follows:

preg_replace($pattern, $replacement, $subject);

where pattern is the regular expression pattern used for matching,