检查字符串是否是URL [英] check if a string is a URL

问题描述

我看过很多问题，但无法理解它是如何工作的 我想要一个更简单的案例.

I've seen many questions but wasn't able to understand how it works as I want a more simple case.

如果我们有文本，无论文本是什么，我都想检查一下它是否是URL.

If we have text, whatever it is, I'd like to check if it is a URL or not.

$text = "something.com"; //this is a url

if (!IsUrl($text)){
    echo "No it is not url";
    exit; // die well
}else{
    echo "Yes it is url";
    // my else codes goes
}

function IsUrl($url){
    // ???
}

在阻止JS的情况下，除了检查JavaScript以外，还有其他方法吗?

Is there any other way rather than checking with JavaScript in the case JS is blocked?

推荐答案

，但示例URL过于简化，(\w+)\.(\w+)将与之匹配.有人提到了filter_var，它只是一个filter_var($url, FILTER_VALIDATE_URL)，但它似乎没有像非ascii字符一样，要当心...

but your example URL is over simplified, (\w+)\.(\w+) would match it. somebody else mentioned filter_var which is simply a filter_var($url, FILTER_VALIDATE_URL) but it doesn't seem to like non-ascii characters so, beware...

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