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apach重定向404错误
虽然评选不到时间，占个处女贴，
因为使用的空间商空间，空间商支持404错误自定义。统一在根目录下放置404.php作为自定义接口。
上传了一个404.php文件，内容是
<?php
echo "404错误!";
?>
发送：
$url = 'http://qh8.com/abc.php';//无效页面
print_r(get_headers($url));
失败，然后再试
$url = 'http://qh8.com/php/index.php';//有效页面
print_r(get_headers($url));
成功了。header证明返回的信息是一样的。
在IE下浏览，一个无效网址(未出现自定义)，在firefox下出现‘404错误’(自定义成功)。
初步与空间商交涉(空间商客服挺热心的)，空间商说是因为IE客户端要打开“显示友好URL”要打勾。如果这样的话，我不能更改每个访问者的IE设置。404自定义静态实现就不能成功。
200~~~~404
于是想到，试下，果然~~~~
将404.php文件改成
<?php
header("HTTP/1.1 200 OK");
echo '404错误!';
?>
OK了，有了这个，以后全站都可以使用静态链接了，呵呵。
附上一个header
<?PHP
/**
* HTTP Protocol defined status codes
* @param int $num
*/
function https($num) {
$http = array (
100 => "HTTP/1.1 100 Continue",
101 => "HTTP/1.1 101 Switching Protocols",
200 => "HTTP/1.1 200 OK",
201 => "HTTP/1.1 201 Created",
202 => "HTTP/1.1 202 Accepted",
203 => "HTTP/1.1 203 Non-Authoritative Information",
204 => "HTTP/1.1 204 No Content",
205 => "HTTP/1.1 205 Reset Content",
206 => "HTTP/1.1 206 Partial Content",
300 => "HTTP/1.1 300 Multiple Choices",
301 => "HTTP/1.1 301 Moved Permanently",
302 => "HTTP/1.1 302 Found",
303 => "HTTP/1.1 303 See Other",
304 => "HTTP/1.1 304 Not Modified",
305 => "HTTP/1.1 305 Use Proxy",
307 => "HTTP/1.1 307 Temporary Redirect",
400 => "HTTP/1.1 400 Bad Request",
401 => "HTTP/1.1 401 Unauthorized",
402 => "HTTP/1.1 402 Payment Required",
403 => "HTTP/1.1 403 Forbidden",
404 => "HTTP/1.1 404 Not Found",
405 => "HTTP/1.1 405 Method Not Allowed",
406 => "HTTP/1.1 406 Not Acceptable",
407 => "HTTP/1.1 407 Proxy Authentication Required",
408 => "HTTP/1.1 408 Request Time-out",
409 => "HTTP/1.1 409 Conflict",
410 => "HTTP/1.1 410 Gone",
411 => "HTTP/1.1 411 Length Required",
412 => "HTTP/1.1 412 Precondition Failed",
413 => "HTTP/1.1 413 Request Entity Too Large",
414 => "HTTP/1.1 414 Request-URI Too Large",
415 => "HTTP/1.1 415 Unsupported Media Type",
416 => "HTTP/1.1 416 Requested range not satisfiable",
417 => "HTTP/1.1 417 Expectation Failed",
500 => "HTTP/1.1 500 Internal Server Error",
501 => "HTTP/1.1 501 Not Implemented",
502 => "HTTP/1.1 502 Bad Gateway",
503 => "HTTP/1.1 503 Service Unavailable",
504 => "HTTP/1.1 504 Gateway Time-out"
);
header($http[$num]);
}
?>
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