PHP Regex Unleashed ! :
PHP regular expressions are a powerful tool for working with text strings. They allow you to search, replace, and manipulate text using a wide variety of patterns and rules.
In PHP, regular expressions are implemented using the preg family of functions, including preg_match(), preg_replace(), and preg_split(). These functions take a regular expression pattern as their first argument and use it to match or modify a given string.
Here are some basic examples of regular expression patterns in PHP:
Match a string that starts with "Hello" and ends with "World":
Code:
$pattern = '/^Hello.*World$/';
Match a string that contains any number of digits:
Code:
$pattern = '/\d+/';
Replace all occurrences of the word "dog" with "cat":
Code:
$pattern = '/\bdog\b/';
$replacement = 'cat';
$new_string = preg_replace($pattern, $replacement, $old_string);
Split a string into an array of words:
Code:
$pattern = '/\s+/';
$words = preg_split($pattern, $string);
These are just a few examples of the many things you can do with PHP regular expressions. To learn more, I recommend checking out the PHP manual's section on regular expressions, as well as other resources such as online tutorials and books.
Github:
https://github.com/Umii010/PHP-Lectures
Quora:
https://www.quora.com/profile/UmerSha...
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