php – 生成SEO友好URL(slugs)

定义

从Wikipedia开始：

A slug is the part of a URL which identifies a page using
human-readable keywords.

To make the URL easier for users to type, special characters are often
removed or replaced as well. For instance, accented characters are
usually replaced by letters from the English alphabet; punctuation
marks are generally removed; and spaces (which have to be encoded as
%20 or +) are replaced by dashes (-) or underscores (_), which are
more aesthetically pleasing.

上下文

我开发了一个照片共享网站,用户可以在其上传,分享和查看照片.

所有页面都是自动生成的,没有我对标题的控制.因为照片的标题或用户的名称可能包含重音字符或空格,我需要一个功能来自动创建slugs并保持可读的URL.

我创建了以下函数来替换重音字符(èçëçî),删除标点符号和错误字符(#@&〜^！)并以破折号转换空格.

问题

>您如何看待这个功能？
>你知道创建slu的任何其他功能吗？

码

php：

function sluggable($str) {

    $before = array(
        'àáâãäåòóôõöøèéêëðçìíîïùúûüñšž',
        '/[^a-z0-9\s]/',
        array('/\s/', '/--+/', '/---+/')
    );
 
    $after = array(
        'aaaaaaooooooeeeeeciiiiuuuunsz',
        '',
        '-'
    );

    $str = strtolower($str);
    $str = strtr($str, $before[0], $after[0]);
    $str = preg_replace($before[1], $after[1], $str);
    $str = trim($str);
    $str = preg_replace($before[2], $after[2], $str);
 
    return $str;
}

解决方法:

似乎没问题,也许它不完整.检查http://code.google.com/p/php-slugs/以获取代码示例.