PHP代码生成安全的URL?

问题描述

我们需要从一本书的标题生成一个唯一的URL-标题可以包含任何字符.我们如何搜索替换所有无效"字符，以便生成有效且简洁的网址?

We need to generate a unique URL from the title of a book - where the title can contain any character. How can we search-replace all the 'invalid' characters so that a valid and neat lookoing URL is generated?

例如:

"The Great Book of PHP"

www.mysite.com/book/12345/the-great-book-of-php

"The Greatest !@#$ Book of PHP"

www.mysite.com/book/12345/the-greatest-book-of-php

"Funny title     "

www.mysite.com/book/12345/funny-title

推荐答案

啊，子弹化

// This function expects the input to be UTF-8 encoded.
function slugify($text)
{
    // Swap out Non "Letters" with a -
    $text = preg_replace('/[^\\pL\d]+/u', '-', $text);

    // Trim out extra -'s
    $text = trim($text, '-');

    // Convert letters that we have left to the closest ASCII representation
    $text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);

    // Make text lowercase
    $text = strtolower($text);

    // Strip out anything we haven't been able to convert
    $text = preg_replace('/[^-\w]+/', '', $text);

    return $text;
}

这很好用，因为它首先使用每个字符的unicode属性来确定它是字母(还是\ d相对于数字)-然后将非字符转换为-，然后音译为ascii，再进行其他替换，然后自行清理. (Fabrik的测试返回"arvizturo-tukorfurogep")

This works fairly well, as it first uses the unicode properties of each character to determine if it's a letter (or \d against a number) - then it converts those that aren't to -'s - then it transliterates to ascii, does another replacement for anything else, and then cleans up after itself. (Fabrik's test returns "arvizturo-tukorfurogep")

我也倾向于添加停用词列表-以便将其从子句中删除. "the"，"of"，"or"，"a"等(但不要长篇大论，否则您将剥离"php"之类的东西)

I also tend to add in a list of stop words - so that those are removed from the slug. "the" "of" "or" "a", etc (but don't do it on length, or you strip out stuff like "php")

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