It is possible to send POST data with file_get_contents() and get the returned content, by using it with the stream_context_create() function.
The stream_context_create($opt) creates and returns a stream context with any options supplied in the $opt array.
- $opt is an array of associative arrays in the format: $arr['wrapper']['option'] = $value .

Example stream_context_create() and file_get_contents()

- Click on the code to select it.
$postdata = http_build_query(['name'=>'some name', 'pass'=>'password']);  //data to send 'name=some+name&pass=password'
$opts = [
 'http' =>
  [
   'method'=> 'POST',  // GET or POST
   'header' => 'Content-type: application/x-www-form-urlencoded'. PHP_EOL .'Content-Length: '. strlen($postdata). PHP_EOL,
   'content' => $postdata
  ]
];
$send_data  = stream_context_create($opts);
$cnt = file_get_contents('http://domain.net/page.php', false, $send_data);  //send data and get the returned content

echo $cnt;
- The http_build_query($arr) function generates a URL-encoded query string from the $arr, returns a string like this: 'key1=val1&key2=val2'.
- The value of the key 'method' must be in UPPERCASE (GET or POST).
- The 'header' key contains http headers that must be send to "page.php".

Daily Test with Code Example

HTML
CSS
JavaScript
PHP-MySQL
Which attribute is used in <a> tag for the address of the link?
src href rel
<a href="http://coursesweb.net/" title="CoursesWeb.net">CoursesWeb.net</a>
Which CSS property sets the type of the text font?
font-family text-decoration font-size
h2 {
  font-family:"Calibri",sans-serif;
}
What instruction selects all the <div> tags with class="cls"?
querySelector("div.cls") getElementsByTagName("div") querySelectorAll("div.cls")
var elm_list = document.querySelectorAll("div.cls");
var nr_elms = elm_list.length;       // number of selected items
alert(nr_elms);
Indicate the function that can be used to get the sum of values in an array.
array_sum() array_diff() array_shift()
$arr = array(1, 2, 3, 4);
$arr_sum = array_sum($arr);
echo $arr_sum;       // 10
Send POST data with file_get_contents

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