php字符串变量连接url,php字符串所有URL地址解析示例

搜索热词

对PHP解析字符串里的所有URL地址感兴趣的小伙伴&＃xff0c;下面一起跟随编程之家 jb51.cc的小编两巴掌来看看吧&＃xff01;

/**

* PHP解析字符串里的所有URL地址

*

* &＃64;param

* &＃64;author 编程之家 jb51.cc jb51.cc

**/

// $html &＃61; the html on the page

// $current_url &＃61; the full url that the html came from (only needed for $repath)

// $repath &＃61; converts ../ and / and // urls to full valid urls

function pageLinks($html,$current_url &＃61; "",$repath &＃61; false){

preg_match_all("/\

$links &＃61; array();

if(isset($matches[2])){

$links &＃61; $matches[2];

}

if($repath && count($links) > 0 && strlen($current_url) > 0){

$pathi &＃61; pathinfo($current_url);

$dir &＃61; $pathi["dirname"];

$base &＃61; parse_url($current_url);

$split_path &＃61; explode("/",$dir);

$url &＃61; "";

foreach($links as $k &＃61;> $link){

if(preg_match("/^\.\./",$link)){

$total &＃61; substr_count($link,"../");

for($i &＃61; 0; $i <$total; $i&＃43;&＃43;){

array_pop($split_path);

}

$url &＃61; implode("/",$split_path) . "/" . str_replace("../","",$link);

}elseif(preg_match("/^\/\//",$link)){

$url &＃61; $base["scheme"] . ":" . $link;

}elseif(preg_match("/^\/|^.\//",$link)){

$url &＃61; $base["scheme"] . "://" . $base["host"] . $link;

}elseif(preg_match("/^[a-zA-Z0-9]/",$link)){

if(preg_match("/^http/",$link)){

$url &＃61; $link;

}else{

$url &＃61; $dir . "/" . $link;

}

}

$links[$k] &＃61; $url;

}

}

return $links;

}

header("content-type: text/plain");

$url &＃61; "http://*";

$html &＃61; file_get_contents($url);

// Gets links from the page:

print_r(pageLinks($html));

// Gets links from the page and formats them to a full valid url:

print_r(pageLinks($html,$url,true));

/*** 来自编程之家 jb51.cc(jb51.cc) ***/

总结

如果觉得编程之家网站内容还不错&＃xff0c;欢迎将编程之家网站推荐给程序员好友。

本图文内容来源于网友网络收集整理提供&＃xff0c;作为学习参考使用&＃xff0c;版权属于原作者。