PHP practical function Manual: stream_context_create () simulate POST/GET

PHP practical function Manual: stream_context_create () simulate postget php practical function Manual: stream_context_create () simulate POST/GET

Sometimes, we need to simulate POST/GET requests on the server, that is, simulation in the PHP program. how can we do this? Or, in the PHP program, how can I POST/GET this array to another address? Of course, it is easy to use CURL. what should I do if the CURL library is not used? In fact, related functions have been implemented in PHP. This function is stream_context_create () to be discussed next ().

Show you the code directly. this is the best method:

$ Data = array ('foo' => 'bar', 'Baz' => 'boom ', 'site' => 'Www .lai18.com ', 'name' => 'lai18'); $ data = http_build_query ($ data); // $ postdata = http_build_query ($ data ); $ options = array ('http' => array ('method' => 'post', 'header' => 'Content-type: application/x-www-form-urlencoded ', 'content' => $ data // 'timeout' => 60*60 // timeout (unit: s ))); $ url = "http://www.lai18.net/"; $ context = stream_context_create ($ options); $ result = file_get_contents ($ url, false, $ context); echo $ result;

The http://www.lai18.com code is:

$data = $_POST;echo '
';print_r( $data );echo '
';

The running result is:

Array(    [foo] => bar    [baz] => boom    [site] => www.lai18.com    [name] => lai18)

Some important points (reference: http://www.lai18.com/content/425476.html ):

1. the above program uses the http_build_query () function. For more information, see stream. It can also be used in a file system ). It is more useful for functions such as file_get_contents, file_put_contents, and readfile that directly use file name operations without file handles. Stream_context_create adds the header only as a part function, and can also define proxy and timeout. This makes web access not weaker than curl.

4. stream_context_create (): creates and returns a text data stream and applies various options for fopen (), file_get_contents () special procedures for timeout settings, proxy server, request method, and header information settings.

5. stream_context_create can solve the file_get_contents timeout problem by adding the timeout option:

$ Opts = array ('http' => array ('method' => "GET", 'timeout' => 60 ,)); // create a data stream context $ context = stream_context_create ($ opts); $ html = file_get_contents ('http: // www.lai18.com ', false, $ context ); // all the remaining data at the fopen output file pointer: // fpassthru ($ fp); // used before fclose ()

Additional reading

The topic list of this article is as follows:

Complete the 1PHP function: get_magic_quotes_gpc ()

2PHP function completion: error_reporting ()

Complete the 3PHP function: array_splice ()

Complete the 4PHP function: isset ()

5PHP function completion: array_multisort ()

6 PHP function completion: urlencode ()

7 PHP function completion: preg_match ()

Complete the 8PHP function: header ()

9PHP function completion: getenv ()

10PHP function completion: list ()

Complete the 11PHP function: mysql_num_rows ()

12PHP function completion: explode ()

Complete the 13PHP function: mysql_fetch_array ()

Complete the 14PHP function: number_format ()

After completing the 15PHP function: mysql_query ()

16PHP function completion: empty ()

Complete the 17PHP function: call_user_func ()

Complete the 18PHP function: parse_url ()

19PHP function completion: import_request_variables ()

Complete the 20PHP function: ImageCopyResamples ()

21PHP function completion: remove the HTML tag strip_tags ()

22PHP function completion: output array structure and content var_dump ()

Complete the 23PHP function: var_export ()

Complete the 24PHP function: Determine whether the variable is a number is_numeric ()

25PHP function completion: http_build_query () construct the URL string

26PHP practical function Manual: stream_context_create () simulate POST/GET

Complete the 27PHP function: shuffle () is used to obtain several random elements in the array.

Completion of the 28PHP function: session_id ()

29PHP function completion: nl2br () and nl2p () functions

30PHP function completion: session_name ()

How to implement the ignore_user_abort function for task scheduling in 31php

How to use the error_log () function in 32PHP

33PHP practical function-array_change_key_case () converts the array key to uppercase and lowercase.

34PHP utility function-function_exists () check whether the function has been defined

35PHP practical function-array_intersect () calculates the intersection of two or more arrays

36PHP practical function-array_diff () calculates the difference set between arrays

37PHP practical function-compact () converts known variables into arrays

38PHP practical function-extract () converts the array to the corresponding key-value pair variable

39PHP utility-array_count_values (): counts the number of times an element appears in an array.

40PHP practical function-getopt () get options from the command line parameter list

41PHP practical functions String function classification

42 use the filter function provided by PHP for data verification