php匹配网址的正则表达式

2024-09-04 11:47:25

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URI 是 Web上可用的每种资源 - HTML文档、图像、视频片段、程序等 - 由一个通用资源标志符（Uniform Resource Identifier, 简称"URI"）进行定位.

对就分组:

^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(?([^#]*))?(#(.*))?

12 3 4 5 6 7 8 9

例,代码如下:

正则表达式 (http|ftp|https)://[w-_]+(.[w-_]+)+([w-.,@?^=%&:/~+#]*[w-@?^=%&/~+#])?

匹配 http://regxlib.com/Default.aspx | http://electronics.cnet.com/electronics/0-6342366-8-8994967-1.html

不匹配 www.Vevb.com

正则表达式 ^/{2}[w-]+/(([w-][w-s]*[w-]+[$$]?$)|([w-][$$]?$))

匹配 /serverservice | /servermy service | /serv_001service$

不匹配 /my serverservice | /server service | /server$service

正则表达式 ^(http|https|ftp)://([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)?((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|([a-zA-Z0-9-]+.)*[a-zA-Z0-9-]+.[a-zA-Z]{2,4})(:[0-9]+)?(/[^/][a-zA-Z0-9.,?'//+&%$#=~_-@]*)*$

匹配 http://www.sysrage.net | https://64.81.85.161/site/file.php?cow=moo's |ftp://user:pass@host.com:123

不匹配 Vevb.com

正则表达式 ^([a-zA-Z]:|//[^//:*?"<>|]+/[^//:*?"<>|]+)(/[^//:*?"<>|]+)+(.[^//:*?"<>|]+)$

匹配 c:Test.txt | /serversharedTest.txt | /serversharedTest.t

不匹配 c:Test | /servershared | /serversharedTest.?

正则表达式 ^(http|https|ftp)://([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9-]+.)*[a-zA-Z0-9-]+.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(:[0-9]+)*(/($|[a-zA-Z0-9.,?'/+&%$#=~_-]+))*$

匹配 http://site.com/dir/file.php?var=moo | https://localhost |ftp://user:pass@site.com:21/file/dir

不匹配 site.com | http://site.com/dir//

正则表达式 ^([a-zA-Z]:)(/[^//:*?<>"|]*(?<![ ]))*(.[a-zA-Z]{2,6})$

匹配 C:di___rfi_sysle.txt | c:dirfilename.txt

不匹配 c:dirfile?name.txt

正则表达式 ^([a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?.)+[a-zA-Z]{2,6}$

匹配 regexlib.com | this.is.a.museum | 3com.com

不匹配 notadomain-.com | helloworld.c | .oops.org

正则表达式 ^(((ht|f)tp(s?))://)?(www.|[a-zA-Z].)[a-zA-Z0-9-.]+.(com|edu|gov|mil|net|org|biz|info|name|museum|us|ca|uk)(:[0-9]+)*(/($|[a-zA-Z0-9.,;?'/+&%$#=~_-]+))*$

匹配 www.blah.com:8103 | www.blah.com/blah.asp?sort=ASC |www.blah.com/blah.htm#blah

不匹配 www.state.ga | http://www.blah.ru

正则表达式 b(([w-]+://?|www[.])[^s()<>]+(?:([wd]+)|([^[:punct:]s]|/)))

不匹配 no_ws.example.com | no_proto_or_ws.com | /relative_resource.php

可以匹配任何网址,代码如下:

<script type="text/javascript">

function IsURL(urlString)

{

regExp = /^((https?|ftp|news)://)?([a-z]([a-z0-9-]*[.。])+([a-z]{2}|aero|arpa|biz|com|coop|edu|gov|info|int|jobs|mil|museum|name|nato|net|org|pro|travel)|(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]).){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]))(/[a-z0-9_-.~]+)*(/([a-z0-9_-.]*)(?[a-z0-9+_-.%=&]*)?)?(#[a-z][a-z0-9_]*)?$/

if (urlString.match(regExp))

return "is a url";

else

return "not a url";

}

url = "";

alert(IsURL(url));

</script>

PHP 测试,代码如下:

<?php

$search = '~^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(?([^#]*))?(#(.*))?~i';

$url = 'http://www.php.net/pub/ietf/uri/#Related';

$url = trim($url);

preg_match_all($search, $url ,$rr);

printf("<p>输出URL数据为：</p><pre>%s</pre>n",var_export( $rr ,TRUE));

/*

各分组如下

      $1 = http:

      $2 = http

      $3 = //www.php.net

      $4 = www.php.net

      $5 = /pub/ietf/uri/

      $6 = <undefined>

      $7 = <undefined>

      $8 = #Related

      $9 = Related

*/

?>

百度上看到另外一块简洁的代码:

<?php

// 从 URL 中取得主机名

preg_match("/^(http://)?([^/]+)/i", "http：//www.php.net/index.html", $matches);

$host = $matches[2];

// 从主机名中取得后面两段

preg_match("/[^./]+.[^./]+$/", $host, $matches);

echo "domain name is: {$matches[0]}n";

?>

//执行后输出：domain name is: php.net