In PHP, how do I filter strings in vanilla PHP?

In PHP, you can filter strings using various methods. For example, you might want to sanitize user input or remove unwanted characters from a string.

PHP, filter strings, sanitize input, string functions

This content provides examples of filtering strings in PHP using built-in functions.

<?php // Example of filtering strings using filter_var $email = "user@example.com"; $filteredEmail = filter_var($email, FILTER_SANITIZE_EMAIL); echo $filteredEmail; // outputs: user@example.com // Example of using preg_replace to remove unwanted characters $string = "Hello, World! @2023"; $cleanString = preg_replace("/[^a-zA-Z0-9\s]/", "", $string); echo $cleanString; // outputs: Hello World 2023 ?>

PHP filter strings sanitize input string functions

Related Questions

How do I avoid rehashing overhead with std::set in multithreaded code?

How do I find elements with custom comparators with std::set for embedded targets?

How do I erase elements while iterating with std::set for embedded targets?

How do I provide stable iteration order with std::unordered_map for large datasets?

How do I reserve capacity ahead of time with std::unordered_map for large datasets?

How do I erase elements while iterating with std::unordered_map in multithreaded code?

How do I provide stable iteration order with std::map for embedded targets?

How do I provide stable iteration order with std::map in multithreaded code?

How do I avoid rehashing overhead with std::map in performance-sensitive code?

How do I merge two containers efficiently with std::map for embedded targets?