Post Title: Remove HTML Tags from Post Title on save_post - WP / Code Snippets Pro

post-title-remove-html-tags-from-post-title-on-save_post.code-snippets.php

<? // <- remove this line if you copy/paste into Code Snippets Pro

/**
 * Post Title: Remove HTML Tags from Post Title on save_post
 *
 * On post save, if the title contains any html tags, they will be stripped out and replaced with a space. This also resets the slug.
 */
namespace WK0aky0;

function custom_strip_all_tags_replace_with_space( $string ) {
	// add a space before tags, gotta keep em separated
	$string = str_replace('<', ' <', $string);
	// completely remove script/style elements
	$string = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', ' ', $string );
	// strip out the tags (this will leave a space in their place bcs we kept em separated)
	$string = strip_tags( $string );
	// remove multiple spaces
	$string = preg_replace('/\s+/', ' ', $string);
	// return the string with front and back trimmed
	return trim( $string );
}


function set_custom_post_title_without_tags( $post_id, $post ){
	
	if ( 'post' == $post->post_type ) {
		$title = get_the_title($post);
		$new_title = \WK0aky0\custom_strip_all_tags_replace_with_space( $title );
		$slug = \sanitize_title_with_dashes( $new_title,'','save' );
		$slugsan = \sanitize_title( $slug );		

		$args = array(
		  'ID'          =>   $post_id,
		  'post_title'  =>   $new_title,
		  'post_name'   =>   $slugsan
		);

		// unhook this function so it doesn't loop infinitely
		remove_action('save_post', '\WK0aky0\set_custom_post_title_without_tags',999,2);

		// update the post, which calls save_post again
		wp_update_post( $args );

		// re-hook this function
		add_action('save_post', '\WK0aky0\set_custom_post_title_without_tags',999,2);
		
	}  
}
add_action( 'save_post', '\WK0aky0\set_custom_post_title_without_tags', 999, 2 );

PHP snippet for Code Snippets Pro

On post save, if the title contains any html tags, they will be stripped out and replaced with a space. This also resets the slug.