php parse_url reverse -- 解析后的url
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/4354904/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
php parse_url reverse -- parsed url
提问by Val
Is there a way to reverse the url from a parsed url?
有没有办法从解析的 url 中反转 url？
$url = 'http://www.domain.com/dir/index.php?query=blabla#more_bla';
$parse = parse_url($url);
print_r($parse);
/*
array(
'scheme'=>'http://',
etc....
)
*/
$revere = reverse_url($parse); // probably does not exist but u get the point
echo $reverse;
//outputs:// "http://www.domain.com/dir/index.php?query=blabla#more_bla"
Or if there is a way validate a url that is missing part of its recommended urls e.g
或者，如果有一种方法可以验证缺少部分推荐网址的网址，例如
www.mydomain.com
www.mydomain.com
mydomain.com
mydomain.com
should all return
http://www.mydomain.comor with correct sub domain
应该全部返回
http://www.mydomain.com或使用正确的子域
采纳答案by Brad Mace
You should be able to do
你应该能够做到
http_build_url($parse)
NOTE: http_build_urlis only available by installing pecl_http.
注意：http_build_url只能通过安装 pecl_http 来使用。
According to the docs it's designed specifically to handle the output from parse_url. Both functions handle anchors, query params, etc so there are no "other properties not mentioned on the $url".
根据文档，它专门设计用于处理来自parse_url. 这两个函数都处理锚点、查询参数等，因此没有“$url 上未提及的其他属性”。
To add http://when it's missing, use a basic check before parsing it:
要http://在丢失时添加，请在解析之前使用基本检查：
if (strpos($url, "http://") != 0)
$url = "http://$url";
回答by NobleUplift
These are the two functions I use for decomposing and rebuilding URLs:
这是我用于分解和重建 URL 的两个函数：
function http_parse_query($query) {
$parameters = array();
$queryParts = explode('&', $query);
foreach ($queryParts as $queryPart) {
$keyValue = explode('=', $queryPart, 2);
$parameters[$keyValue[0]] = $keyValue[1];
}
return $parameters;
}
function build_url(array $parts) {
return (isset($parts['scheme']) ? "{$parts['scheme']}:" : '') .
((isset($parts['user']) || isset($parts['host'])) ? '//' : '') .
(isset($parts['user']) ? "{$parts['user']}" : '') .
(isset($parts['pass']) ? ":{$parts['pass']}" : '') .
(isset($parts['user']) ? '@' : '') .
(isset($parts['host']) ? "{$parts['host']}" : '') .
(isset($parts['port']) ? ":{$parts['port']}" : '') .
(isset($parts['path']) ? "{$parts['path']}" : '') .
(isset($parts['query']) ? "?{$parts['query']}" : '') .
(isset($parts['fragment']) ? "#{$parts['fragment']}" : '');
}
// Example
$parts = parse_url($url);
if (isset($parts['query'])) {
$parameters = http_parse_query($parts['query']);
foreach ($parameters as $key => $value) {
$parameters[$key] = $value; // do stuff with $value
}
$parts['query'] = http_build_query($parameters);
}
$url = build_url($parts);
回答by Jesse
This function should do the trick:
这个函数应该可以解决问题：
function unparse_url(array $parsed): string {
$pass = $parsed['pass'] ?? null;
$user = $parsed['user'] ?? null;
$userinfo = $pass !== null ? "$user:$pass" : $user;
$port = $parsed['port'] ?? 0;
$scheme = $parsed['scheme'] ?? "";
$query = $parsed['query'] ?? "";
$fragment = $parsed['fragment'] ?? "";
$authority = (
($userinfo !== null ? "$userinfo@" : "") .
($parsed['host'] ?? "") .
($port ? ":$port" : "")
);
return (
(\strlen($scheme) > 0 ? "$scheme:" : "") .
(\strlen($authority) > 0 ? "//$authority" : "") .
($parsed['path'] ?? "") .
(\strlen($query) > 0 ? "?$query" : "") .
(\strlen($fragment) > 0 ? "#$fragment" : "")
);
}
Here is a short test for it:
这是一个简短的测试：
function unparse_url_test() {
foreach ([
'',
'foo',
'http://www.google.com/',
'http://u:p@foo:1/path/path?q#frag',
'http://u:p@foo:1/path/path?#',
'ssh://root@host',
'://:@:1/?#',
'http://:@foo:1/path/path?#',
'http://@foo:1/path/path?#',
] as $url) {
$parsed1 = parse_url($url);
$parsed2 = parse_url(unparse_url($parsed1));
if ($parsed1 !== $parsed2) {
print var_export($parsed1, true) . "\n!==\n" . var_export($parsed2, true) . "\n\n";
}
}
}
unparse_url_test();
回答by mpyw
Another implemention:
另一个实现：
function build_url(array $elements) {
$e = $elements;
return
(isset($e['host']) ? (
(isset($e['scheme']) ? "$e[scheme]://" : '//') .
(isset($e['user']) ? $e['user'] . (isset($e['pass']) ? ":$e[pass]" : '') . '@' : '') .
$e['host'] .
(isset($e['port']) ? ":$e[port]" : '')
) : '') .
(isset($e['path']) ? $e['path'] : '/') .
(isset($e['query']) ? '?' . (is_array($e['query']) ? http_build_query($e['query'], '', '&') : $e['query']) : '') .
(isset($e['fragment']) ? "#$e[fragment]" : '')
;
}
The results should be:
结果应该是：
{
"host": "example.com"
}
/* //example.com/ */
{
"scheme": "https",
"host": "example.com"
}
/* https://example.com/ */
{
"scheme": "http",
"host": "example.com",
"port": 8080,
"path": "/x/y/z"
}
/* http://example.com:8080/x/y/z */
{
"scheme": "http",
"host": "example.com",
"port": 8080,
"user": "anonymous",
"query": "a=b&c=d",
"fragment": "xyz"
}
/* http://[email protected]:8080/?a=b&c=d#xyz */
{
"scheme": "http",
"host": "example.com",
"user": "root",
"pass": "stupid",
"path": "/x/y/z",
"query": {
"a": "b",
"c": "d"
}
}
/* http://root:[email protected]/x/y/z?a=b&c=d */
{
"path": "/x/y/z",
"query": "a=b&c=d"
}
/* /x/y/z?a=b&c=d */
回答by Tomasz Kap?oński
This answer is appendix to accepted answer by @BradMace. I originally added this as a comment but he suggested add this as separate answer so here it is.
这个答案是@BradMace 接受的答案的附录。我最初将其添加为评论，但他建议将其添加为单独的答案，所以在这里。
Original answer to use http_build_url($parse)provided by pecl_httpwould work for extension version 1.x- versions 2.xand later are object oriented and syntax changed.
原来答案使用http_build_url($parse)提供pecl_http将工作扩展版本1.x-版本2.x及更高版本的面向对象和语法改变。
In newer version (tested on pecl_http v.3.2.3) implementation should be:
在较新版本（已测试pecl_http v.3.2.3）中，实现应该是：
$httpUrl = new \http\Url($parsed);
$url = $httpUrl->toString();
回答by Jayant Pandey
Get last string from url eg: http://example.com/controllername/functionnameand need to get functionname
从 url 获取最后一个字符串，例如：http: //example.com/controllername/functionname并且需要获取 functionname
$referer = explode('/',strrev($_SERVER['HTTP_REFERER']));
$referer = expand('/',strrev($_SERVER['HTTP_REFERER']));
$lastString = strrev($referer[0]);
$lastString = strrev($referer[0]);
