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PHP Practical Function Manual: stream_context_create() simulates POST/GET
Sometimes, we need to simulate POST/GET and other requests on the server side, that is, to implement simulation in the PHP program. How to do it? In other words, in a PHP program, if you are given an array, how do you POST/GET this array to another address? Of course, it's easy to do it using CURL, but what if you don't use the CURL library? In fact, there is already a related function implemented in PHP, and this function is stream_context_create() that I will talk about next. Extended reading 1 PHP function completion: get_magic_quotes_gpc() 2 PHP function completion: error_reporting() 3 PHP function completion: array_splice() 4 PHP function completion: isset() 5 PHP function completion: array_multisort() 6 PHP function completion: urlencode() 7 PHP function completion :preg_match() 8 PHP function completion: header() 9 PHP function completion: getenv() 10 PHP function completion: list() 11 PHP function completion: mysql_num_rows() 12 PHP function completion: explode() 13 PHP function completion: mysql_fetch_array() 14 PHP function completion: number_format() 15 PHP function completion: mysql_query() 16 PHP function completion Finish: empty() 17 PHP function completion: call_user_func() 18 PHP function completion: parse_url() 19 PHP function completion: import_request_variables() 20 PHP function completion: ImageCopyResamples() 21PHP function completion: remove HTML tags strip_tags() 22PHP function completion: output array structure and content var_dump() 23PHP function completion: var_export() 24PHP function completion: determine whether the variable Completion of the number is_numeric() 25 PHP function: http_build_query() constructs a URL string 26PHP practical function manual: stream_context_create() simulates POST/GET 27 PHP function completion: shuffle() takes several arrays Random elements 28 PHP function completion: session_id() 29 PHP function completion: nl2br() and nl2p() functions 30 PHP function completion: session_name() 31 PHP scheduled task ignore_user_abort function implementation Method 32How to use the error_log() function in PHP 33PHP utility function-array_change_key_case() converts the keys of the array to uppercase and lowercase 34PHP utility function-function_exists() detects whether the function has been defined 35PHP utility Function-array_intersect() calculates the intersection of two or more arrays 36PHP utility function-array_diff() calculates the difference between arrays 37PHP utility function-compact() converts known variables into arrays 38PHP utility function-extract() converts the array into corresponding key-value pair variables 39PHP utility function-array_count_values() counts the number of occurrences of elements in the array 40PHP utility function-getopt() obtains from the command line parameter list Options 41PHP practical function String function classification 42Use PHP’s own filter function for data verification
Show you the code directly, this is the best way:
The running result is:
Some key points to explain (reference:
1. The above program uses the http_build_query() function. If you need to know more, you can refer to stream), which can also be used in the file system. It is more useful for functions like file_get_contents, file_put_contents, and readfile that operate directly on file names without file handles. Adding headers to stream_context_create is only part of the function. You can also define proxies, timeouts, etc. This makes the function of accessing the web not weaker than curl.
4. The function of stream_context_create(): Create and return a text data stream and apply various options. It can be used for special processes such as timeout settings, proxy servers, request methods, and header information settings for fopen(), file_get_contents() and other processes.
5. stream_context_create can also solve file_get_contents timeout processing by adding the timeout option:
The above introduces the practical functions of PHP: stream_context_create simulates POST/GET, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.