Problems encountered in writing code (PHP does not receive the JSON data passed, PHP uses UTF8 usage)

Today, write code with Python processing data, to the PHP server, found that the data is not received, because it is cross-domain, so added the message header: Header (' access-control-allow-origin:* '), but there is no egg, and then continue to Baidu, Patchwork finally found a solution.

The scheme is as follows:

1. Send the data to add header: headers = {' Content-type ': ' Application/json '}

2. PHP receives data using: $GLOBALS [' Http_raw_post_data '].

Here's why: $_post: An array of variables passed by the HTTP POST method. 　is an automatic global variable. PHP By default only recognizes the application/x-www.form-urlencoded standard data type, which is the post data that can be accepted normally.

Content such as text/xml or soap or application/octet-stream can not be resolved, if you use the $_post array to receive will fail! So keep the prototype and give it to $globals[' Http_raw_post_data ') to receive it.

PHP after receiving data, after uploading MySQL found Chinese garbled, add the header in PHP ("content-type:text/html; Charset=utf-8 "), MySQL set character sets Utf-8 also invalid, later found that PDO did not set the Chinese code, plus later, then succeeded.

Also attached

　How to use Utf-8 :

"UTF-8" is the standard notation, PHP is not case-sensitive in English, so it can also be written as "Utf-8". "UTF-8" can also be the middle of "-" omitted, written as "UTF8". General procedures can be identified, but there are exceptions (the following article), in order to be strict, it is best to use the standard capitalization "UTF-8".

Only use "UTF8" (MySQL) in the database can only use "UTF8" in the MySQL command mode, can not use "utf-8", that is, in the PHP program can only use "Set names UTF8 (no small bars)", if you add "-" This line command will not take effect, but the header in PHP to add "-", because IE does not know the "UTF8", for reasons see below.

Header in PHP:

<?php header (' content-type:text/html; Charset=utf-8 ');?>//Strange: Content-tyep with a colon, chatset is an equal sign.
Static file use:
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
Summary: "Utf-8" can only be used in MySQL with the alias "UTF8", but in other places use uppercase "UTF-8". 】

 

Problems encountered in writing code (PHP does not receive the JSON data passed, PHP uses UTF8 usage)