class-shortcode-parser.php – preg_match_all(): Compilation failed

Hey there,

this is kind of a plugin incompatibility caused by “gravityview”. They register a shortcode with the name “gv\widgets\page_size”. Which is totally legit. When you add this shortcode name to your test Regex in class-shortcode-parser.php the “\p” triggers the error as it is a reserved group in Regex:

Warning [2] Error (E_WARNING): “preg_match_all(): Compilation failed: unknown property name after \P or \p at offset 9320“ at ./wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/class-shortcode-parser.php:607.

Obviously you cannot simply add any given shortcode to a regex without sanitizing it first. In this case: escaping possible illegal characters like “\”.

Here is the call stack:

preg_match_all,
ShortcodeParser->balance_shortcode,
ShortcodeParser->parse_shortcode,
ShortcodeHelper::clean_up_shortcode,
aviaShortcodeTemplate->shortcode_handler_prepare,
do_shortcode_tag,
preg_replace_callback,
do_shortcode,
av_privacy_class->handler_wp_footer_cookie_consent_bar,
WP_Hook->apply_filters,
WP_Hook->do_action,
do_action(<code>wp_footer</code>),
wp_footer,
require_once(<code>/themes/enfold/footer.php</code>),
load_template,
locate_template,
get_footer,
include(<code>/themes/enfold/index.php</code>),
require_once(<code>wp-includes/template-loader.php</code>),
require(<code>wp-blog-header.php</code>)

Running Enfold 5.6.2. But I don’t think you fixed something like this in the more recent versions ;-).

Thanks and best regards,

Jan