- if (!CRM_Core_BAO_SchemaHandler::databaseSupportsUTF8MB4()) {
- foreach ((array) $criteria as $criterion) {
- if (!empty($criterion) && !is_numeric($criterion)
- // The first 2 criteria are redundant but are added as they
- // seem like they would
- // be quicker than this 3rd check.
- && max(array_map('ord', str_split($criterion))) >= 240) {
- // String contains unsupported emojis.
- // We return a clause that resolves to false as an emoji string by definition cannot be saved.
- // note that if we return just 0 for false if gets lost in empty checks.
- // https://stackoverflow.com/questions/16496554/can-php-detect-4-byte-encoded-utf8-chars
- return '0 = 1';
- }
- }