return -1;
}
+ // Replace invalid UTF-8 chars with a square UTF-8 character
+ // This prevents json_encode from erroring out due to binary SQL data
+ $sql = preg_replace(
+ '/(
+ [\xC0-\xC1] # Invalid UTF-8 Bytes
+ | [\xF5-\xFF] # Invalid UTF-8 Bytes
+ | \xE0[\x80-\x9F] # Overlong encoding of prior code point
+ | \xF0[\x80-\x8F] # Overlong encoding of prior code point
+ | [\xC2-\xDF](?![\x80-\xBF]) # Invalid UTF-8 Sequence Start
+ | [\xE0-\xEF](?![\x80-\xBF]{2}) # Invalid UTF-8 Sequence Start
+ | [\xF0-\xF4](?![\x80-\xBF]{3}) # Invalid UTF-8 Sequence Start
+ | (?<=[\x0-\x7F\xF5-\xFF])[\x80-\xBF] # Invalid UTF-8 Sequence Middle
+ | (?<![\xC2-\xDF]|[\xE0-\xEF]|[\xE0-\xEF][\x80-\xBF]|[\xF0-\xF4]
+ |[\xF0-\xF4][\x80-\xBF]|[\xF0-\xF4][\x80-\xBF]{2})[\x80-\xBF] # Overlong Sequence
+ | (?<=[\xE0-\xEF])[\x80-\xBF](?![\x80-\xBF]) # Short 3 byte sequence
+ | (?<=[\xF0-\xF4])[\x80-\xBF](?![\x80-\xBF]{2}) # Short 4 byte sequence
+ | (?<=[\xF0-\xF4][\x80-\xBF])[\x80-\xBF](?![\x80-\xBF]) # Short 4 byte sequence (2)
+ )/x',
+ '■',
+ $sql
+ );
+
self::$query[] = array(
'sql' => $sql,
'function' => $function,