PHP中Header使用的HTTP协议及常用方法小结

<?php
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]);
};

//200 正常状态
header('http/1.1 200 ok');

// 301 永久重定向，记得在后面要加重定向地址 location:$url
header('http/1.1 301 moved permanently');

// 重定向，其实就是302 暂时重定向
header('location: http://www.xxxx.com/');

// 设置页面304 没有修改
header('http/1.1 304 not modified');

// 显示登录框，
header('http/1.1 401 unauthorized');
header('www-authenticate: basic realm="登录信息"');
echo '显示的信息！';

// 403 禁止访问
header('http/1.1 403 forbidden');

// 404 错误
header('http/1.1 404 not found');

// 500 服务器错误
header('http/1.1 500 internal server error');

// 3秒后重定向指定地址(也就是刷新到新页面与 <meta http-equiv="refresh" content="10;http://www.xxxx.com/ /> 相同)
header('refresh: 3; url=http://www.xxxx.com/');
echo '10后跳转到http://www.xxxx.com';

// 重写 x-powered-by 值
header('x-powered-by: php/5.3.0');
header('x-powered-by: brain/0.6b');

//设置上下文语言
header('content-language: en');

// 设置页面最后修改时间（多用于防缓存）
$time = time() - 60; //建议使用filetime函数来设置页面缓存时间
header('last-modified: '.gmdate('d, d m y h:i:s', $time).' gmt');

// 设置内容长度
header('content-length: 39344');

// 设置头文件类型，可以用于流文件或者文件下载
header('content-type: application/octet-stream');
header('content-disposition: attachment; filename="example.zip"');
header('content-transfer-encoding: binary');
readfile('example.zip');//读取文件到客户端

//禁用页面缓存
header('cache-control: no-cache, no-store, max-age=0, must-revalidate');
header('expires: mon, 26 jul 1997 05:00:00 gmt');
header('pragma: no-cache');

//设置页面头信息
header('content-type: text/html; charset=iso-8859-1');
header('content-type: text/html; charset=utf-8');
header('content-type: text/plain');
header('content-type: image/jpeg');
header('content-type: application/zip');
header('content-type: application/pdf');
header('content-type: audio/mpeg');
header('content-type: application/x-shockwave-flash');
//.... 至于content-type 的值 可以去查查 w3c 的文档库，那里很丰富
?>