Introduction to several PHP techniques for getting post data _php tutorial

For an experienced

(a) Form post mode of submission PHP get post data

$_post and Php://input can fetch a value, $HTTP _raw_post_data is empty
$_post organizes the submitted data in an associative array, and encodes it, such as UrlDecode, or even transcoding.
Php://input can get unprocessed post raw data via input stream in file read mode

(ii) Fsockopen submit post data PHP get post data

2. $ sock = Fsockopen ("localhost", 80,
   $errno, $ERRSTR, 30);
4. if (! $sock) Die ("$errstr ($errno) n");
6. $ Data = "txt=" . UrlEncode ("Medium").
   "&bar=". UrlEncode ("Value for Bar");
8. Fwrite ($sock, "post/posttest/response
   . PHP Http/1.0rn ");
10. Fwrite ($sock, "host:localhostrn");
12. Fwrite ($sock, "Content-type:applicat
    Ion/x-www-form-urlencodedrn ");
14. Fwrite ($sock, "Content-length:".)
    Strlen ($data). "RN");
16. Fwrite ($sock, "Accept: */*rn");
18. Fwrite ($sock, "RN");
20. Fwrite ($sock, "$datarn");
22. Fwrite ($sock, "RN");
24. $ Headers = "" ;
26. While ($str = trim(fgets ($sock,
    4096)))
28. $headers . = "$strn" ;
30. echo "n";
32. $ Body = "" ;
34. while (!feof ($sock))
36. $body . = fgets ($sock, 4096);
38. Fclose ($sock);
40. Echo $body;

PHP get Post Data conclusion:

1. Php://input can be easily taken to the original post data

2. $HTTP _raw_post_data only valid if the Content-type type of POST is not recognized by PHP

If post data is normally submitted through the page form, it cannot be extracted via $http_raw_post_data. Because of its encoding type attribute (Enctype property) is application/x-www-form-urlencoded, Multipart/form-data.

Note: Even if the Enctype property is explicitly changed within the page to be an unrecognized type for PHP, it is still invalid. Because the form submission encoding attribute is form-qualified, the unrecognized type is considered to be committed by default encoding (that is, application/x-www-form-urlencoded)

3. $_post can implement PHP to get post data only when data is submitted by application/x-www-form-urlencoded type.

http://www.bkjia.com/PHPjc/445978.html www.bkjia.com true http://www.bkjia.com/PHPjc/445978.html techarticle for an experienced (one) Form post submission case PHP gets post data $_post with Php://input can fetch value, $HTTP _raw_post_data is empty $_post in associative array mode ...

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