如何确保PHP json_encode将编码从数据库中读取的任何数据？

Question

Saving data via PHP 5.5 on WAMP to MySQL saves fine.

Recalling it to the client via json_encode did work until I dropped and entered new data into my db. Then json_encode returned nothing - no error - no data. No error in log file.

New data has German street names (with umlauts etc)

I replaced German street names with ascii codes.

json_encode worked as I expected, thus problem sort of resolved.

How does one resolve the issue going forward?

Data in my MySQL INNODB is saved as latin1.

Do I need to filter the data after read from DB, before calling json_encode ? Some other way?

Answer 1

Use below code:

mysql_query('SET CHARACTER SET utf8');

Before sql query,

And use below for json encode:

json_encode($array, JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP | JSON_UNESCAPED_UNICODE)