_truncate_post_slug() │ WP 3.6.0

Truncates a post slug.

Internal function — this function is designed to be used by the kernel itself. It is not recommended to use this function in your code.

No Hooks.

Returns

String. The truncated slug.

Usage

_truncate_post_slug( $slug, $length );
$slug(string) (required)
The slug to truncate.
$length(int)
Max length of the slug.
Default: 200 (characters)

Notes

  • See: utf8_uri_encode()

Changelog

Since 3.6.0 Introduced.

_truncate_post_slug() code WP 6.9.1

wp-includes/post.php 
function _truncate_post_slug( $slug, $length = 200 ) {
	if ( strlen( $slug ) > $length ) {
		$decoded_slug = urldecode( $slug );
		if ( $decoded_slug === $slug ) {
			$slug = substr( $slug, 0, $length );
		} else {
			$slug = utf8_uri_encode( $decoded_slug, $length, true );
		}
	}

	return rtrim( $slug, '-' );
}