如何在PHP中读取任何标题?
例如自定义标题:
例如自定义标题:
X-Requested-With
。X-Requested-With
。<?php
function getHeaders($header_name=null)
{
$keys=array_keys($_SERVER);
if(is_null($header_name)) {
$headers=preg_grep("/^HTTP_(.*)/si", $keys);
} else {
$header_name_safe=str_replace("-", "_", strtoupper(preg_quote($header_name)));
$headers=preg_grep("/^HTTP_${header_name_safe}$/si", $keys);
}
foreach($headers as $header) {
if(is_null($header_name)){
$headervals[substr($header, 5)]=$_SERVER[$header];
} else {
return $_SERVER[$header];
}
}
return $headervals;
}
print_r(getHeaders());
echo "\n\n".getHeaders("Accept-Language");
?>
对我来说,这比其他答案中给出的大多数示例要简单得多。当获取所有标头时,这也可以获取方法(GET / POST /等)和请求的URI,如果您尝试将其用于日志记录,则可能会很有用。
以下是输出:
Array ( [HOST] => 127.0.0.1 [USER_AGENT] => Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:28.0) Gecko/20100101 Firefox/28.0 [ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 [ACCEPT_LANGUAGE] => en-US,en;q=0.5 [ACCEPT_ENCODING] => gzip, deflate [COOKIE] => PHPSESSID=MySessionCookieHere [CONNECTION] => keep-alive )
en-US,en;q=0.5
这个小的PHP代码片段可能对你有帮助:
<?php
foreach($_SERVER as $key => $value){
echo '$_SERVER["'.$key.'"] = '.$value."<br />";
}
?>
var_export($_SERVER);
。 - David Spectorfunction getCustomHeaders()
{
$headers = array();
foreach($_SERVER as $key => $value)
{
if(preg_match("/^HTTP_X_/", $key))
$headers[$key] = $value;
}
return $headers;
}
PHP 7:空合并运算符
//$http = 'SCRIPT_NAME';
$http = 'X_REQUESTED_WITH';
$http = strtoupper($http);
$header = $_SERVER['HTTP_'.$http] ?? $_SERVER[$http] ?? NULL;
if(is_null($header)){
die($http. ' Not Found');
}
echo $header;
这里有一个简单的方法来实现它。
// echo get_header('X-Requested-With');
function get_header($field) {
$headers = headers_list();
foreach ($headers as $header) {
list($key, $value) = preg_split('/:\s*/', $header);
if ($key == $field)
return $value;
}
}
foreach (getallheaders() as $name => $value) {
if($name=='Authorization') //here you can search by name
$Authorization= $value ;
}