What to do if php outputs array key names with garbled characters

Solution to the garbled array key name output by php: 1. Add "header("Content-type:text/html;charset=utf-8");" at the beginning of the page; 2. Execute " mysql_query('SET NAMES UTF8');".

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

What should I do if php outputs garbled array key names? ?

1. The Chinese garbled problem of pure PHP pages (data is static)

You only need to add the following code at the beginning of the page, and then save the UTF-8 encoded file That’s it.

<?php
header("Content-type:text/html;charset=utf-8");
?>

2. PHP Mysql Chinese garbled problem

In addition to following the operations mentioned in the first point, you must also add database encoding before querying/modifying/adding your data. Moreover, it is worth noting that the UTF8 here is different from the previous one, there is no horizontal line in the middle.

<?php
mysql_query(&#39;SET NAMES UTF8&#39;);
//接下来的就是查出数据或者修改，增加
?>

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