如何在PHP中读取任何请求标头 [英] How do I read any request header in PHP
问题描述
我应该如何阅读PHP中的任何标题?
How should I read any header in PHP?
例如自定义标题: X-Requested-With
。
推荐答案
如果:您只需要一个标头,而不是所有标题,最快的方法是:
IF: you only need a single header, instead of all headers, the quickest method is:
<?php
// Replace XXXXXX_XXXX with the name of the header you need in UPPERCASE (and with '-' replaced by '_')
$headerStringValue = $_SERVER['HTTP_XXXXXX_XXXX'];
ELSE IF :你运行PHP作为Apache模块,或者从PHP 5.4开始,使用FastCGI(简单方法):
ELSE IF: you run PHP as an Apache module or, as of PHP 5.4, using FastCGI (simple method):
<?php
$headers = apache_request_headers();
foreach ($headers as $header => $value) {
echo "$header: $value <br />\n";
}
ELSE:在任何其他情况下,您可以使用(userland implementation):
ELSE: In any other case, you can use (userland implementation):
<?php
function getRequestHeaders() {
$headers = array();
foreach($_SERVER as $key => $value) {
if (substr($key, 0, 5) <> 'HTTP_') {
continue;
}
$header = str_replace(' ', '-', ucwords(str_replace('_', ' ', strtolower(substr($key, 5)))));
$headers[$header] = $value;
}
return $headers;
}
$headers = getRequestHeaders();
foreach ($headers as $header => $value) {
echo "$header: $value <br />\n";
}
另请参阅 :
getallheaders() - (PHP> = 5.4 )跨平台版别名 apache_request_headers()
apache_response_headers() - 获取所有HTTP响应头。
headers_list() - 获取要发送的标题列表。
See Also:
getallheaders() - (PHP >= 5.4) cross platform edition Alias of apache_request_headers()
apache_response_headers() - Fetch all HTTP response headers.
headers_list() - Fetch a list of headers to be sent.
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