题
有没有办法将URL从解析的URL中扭转?
$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 $reverse;
//outputs:// "http://www.domain.com/dir/index.php?query=blabla#more_bla"
或者如果有一种方法验证丢失其推荐URL部分的URL,例如
www.mydomain.com
mydomain.com
都应该返回http://www.mydomain.com
或使用正确的子域
解决方案
你应该能够做
http_build_url($parse)
笔记: http_build_url 仅通过安装PECL_HTTP才能获得。
根据文档,它专门设计用于处理来自 parse_url
. 。这两个功能都处理锚点,查询参数等,因此没有“ $ url上未提及的其他属性”。
添加 http://
丢失时,请在解析之前使用基本检查:
if (strpos($url, "http://") != 0)
$url = "http://$url";
其他提示
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);
此功能应该可以解决:
/**
* @param array $parsed
* @return string
*/
function unparse_url(array $parsed) {
$get = function ($key) use ($parsed) {
return isset($parsed[$key]) ? $parsed[$key] : null;
};
$pass = $get('pass');
$user = $get('user');
$userinfo = $pass !== null ? "$user:$pass" : $user;
$port = $get('port');
$scheme = $get('scheme');
$query = $get('query');
$fragment = $get('fragment');
$authority =
($userinfo !== null ? "$userinfo@" : '') .
$get('host') .
($port ? ":$port" : '');
return
(strlen($scheme) ? "$scheme:" : '') .
(strlen($authority) ? "//$authority" : '') .
$get('path') .
(strlen($query) ? "?$query" : '') .
(strlen($fragment) ? "#$fragment" : '');
}
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();
另一个实施:
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]" : '')
;
}
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://anonymous@example.com: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:stupid@example.com/x/y/z?a=b&c=d */
{
"path": "/x/y/z",
"query": "a=b&c=d"
}
/* /x/y/z?a=b&c=d */
从url eg获取最后一个字符串: http://example.com/controllername/functionName并且需要获取函数名称
$ coadeer = explode('/',strrev($ _ server ['http_referer']));
$ lastString = strrev($ referer [0]);
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