- var_dump( $str );
+ echo bin2hex($str);cf f0 e8 e2 e5 f2 20 32 30 31 39 20 cc e8 f0 21Привет 2019 Мир!
To use a literal instance of a special character in a regular expression, precede it by two backslash (\) characters. The MySQL parser interprets one of the backslashes, and the regular expression library interprets the other.
https://homepagemodul.immowelt.de/list/api/list/?callback=listcallback&guid=b2436f43607c49f49b3e1135fe8f33d1&area=&eType=-1&eCat=-1&geoid=-1&livingarea=&page=1&price=&rentfactor=&room=&squareprice=&windowarea=&stype=0&_=1719720028049
https://homepagemodul.immowelt.de/list/api/list/?callback=listcallback&guid=b2436f43607c49f49b3e1135fe8f33d1&area=&eType=-1&eCat=-1&geoid=-1&livingarea=&page=1&price=&rentfactor=&room=&squareprice=&windowarea=&stype=0&_=1719720028050SELECT 'original post' AS type, content
FROM posts
WHERE id = 1
UNION ALL
SELECT 'comment', content
FROM comments
WHERE post = 1
ORDER BY type = 'comment'
