sanitize_text_field() however actually removes all HTML markup, as well as extra whitespace. etc..). I am developing a script where I want to use the WordPress sanitize_title function to generate slugs, without loading its entire library (WordPress is too slow). If I save the content with the following code : update_post_meta ( $post_id, $prefix.'content', $_POST ['content'] ); Everything is working fine but there is no security (sanitization, validation etc.) Thanks for contributing an answer to WordPress Development Stack Exchange! Why it is called "BatchNorm" not "Batch Standardize"? Semantically it's escape, so it's meant to be used to make output to page safe. 585), Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, wp_editor on custom meta textarea field - images and html fails, Best Practice for Validating and Sanitizing Data. It's not enough to say "the string should contain this." By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. This should sanitize the user input and remove any HTML tags and attributes to prevent potential security issues. When should I use esc_html() instead of sanitize_text_field()? The Sanitize theme is a fully responsive layout for all types of devices. Why would a god stop using an avatar's body? Imports theme starter content into the customized state. When using one of these filters as a default filter either through your ini file or through your web server's configuration, the default flags is set to FILTER_FLAG_NO_ENCODE_QUOTES.You need to explicitly set filter.default_flags to 0 to have quotes encoded by default. Ditto for src attributes. Add special Character to All Wordpress Titles, sanitize the_title() in wordpress posts loop, How to apply wordpress filter function only on post title, Counting Rows where values can be stored in multiple columns, Can you pack these pentacubes to form a rectangular block with at least one odd side length other the side whose length must be a multiple of 5, Describing characters of a reductive group in terms of characters of maximal torus. Adds a help tab to the contextual help for the screen. How to create custom sanitize_title() function like WordPress? If this results in an empty string then it will return the alternative value supplied. Get WordPress; Themes; Patterns; . E.g. Converts all accent characters to ASCII characters. why is esc_html() returning nothing given a string containing a high-bit character? It is impossible to talk about security without full context, but ib general you should probably use one of the. Untrusted data in your web can come from many sources: the system users, third parties or your own database, everything needs to be validated both on input and output. esc_html (), esc_attr (), esc_url (), etc. Doing some research into why my backend of WP is slow I installed Query Monitor which led me to seeing some PHP errors: "PHP errors were triggered during an Ajax request. Similar to allowedAttributes, you can use * to allow classes with a certain prefix, or use * as a tag name to allow listed classes to be valid for any tag: Furthermore, regular expressions are supported too: If allowedClasses for a certain tag is false, all the classes for this tag will be allowed. What is the status for EIGHT piece endgame tablebases? "This function makes sure that only the allowed HTML element names, attribute names and attribute values plus only sane HTML entities will occur in $string. Counting Rows where values can be stored in multiple columns. wp_kses() | Function | WordPress Developer Resources Top Return wp_kses_post does the same thing, except allow '