Failed to open stream: HTTP request failed

Fopen is a very good function to collect remote server content and save it to a local location. It can also open local files, next let's take a look at the solution to the failed to open stream: HTTP request failed problem when using the fopen function.

<? Php tutorial
$ Handle = fopen ("http://www.zhutiai.com/c5-03/", "rb ");
$ Contents = "";
While (! Feof ($ handle )){
$ Contents. = fread ($ handle, 8192 );
}
Fclose ($ handle );
Echo $ contents; // output the obtained content.
?>

// The following code can be used for PHP 5 and later versions:

<? Php
$ Handle = fopen ("http://mb.bKjia. c0m", "rb ");
$ Contents = stream_get_contents ($ handle );
Fclose ($ handle );
Echo $ contents;
?>

Some people say that in php. in ini, there are two options: allow_url_fopen = on (indicating that remote files can be opened through url), user_agent = "PHP" (indicating which script is used to access the network. By default, there is "; "Remove it .) Restart the server.
However, some of them still have this warning message. If you want to use the perfect solution, you still have to set php. user_agent in ini. The default user_agent in php is PHP. We can change it to Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) to simulate the browser.

Use the php curl module to retrieve the PHP homepage and save it to a file.

<? Php
$ Ch = curl_init ("http://www.bKjia. c0m /");
$ Fp = fopen ("php_homepage.txt", "w ");
Curl_setopt ($ ch, CURLOPT_FILE, $ fp );
Curl_setopt ($ ch, CURLOPT_HEADER, 0 );
Curl_exec ($ ch );
Curl_close ($ ch );
Fclose ($ fp );
?>

List of curl-related functions:

Curl_init-initialize a CURL session

Curl_setopt-set an option for CURL calls

Curl_exec-execute a CURL session

Curl_close-close a CURL session

Curl_version-returns the current CURL version

1> curl_init-initialize a CURL session

Description

Int curl_init ([string url])

The curl_init () function initializes a new session and returns a CURL handle for use by the curl_setopt (), curl_exec (), and curl_close () functions. If the optional parameter is provided, the CURLOPT_URL option is set to the value of this parameter. You can use the curl_setopt () function for manual settings.

Example 1. initialize a new CURL session and retrieve a webpage

<? Php

$ Ch = curl_init ();
Curl_setopt ($ ch, CURLOPT_URL, "http://www.zhutiai.com /");
Curl_setopt ($ ch, CURLOPT_HEADER, 0 );
Curl_exec ($ ch );
Curl_close ($ ch );
?>