Verify URL

[Andy252]

How do you get PHP to verify URL in a post?

I want to stop people posting http://bfsdjkbgfsdr

[redbullmarky]

a mixture of [url=http://www.php.net/preg_match]preg_match[/url] and [url=http://www.phpfreaks.com/forums/index.php/board,43.0.html]regular expressions[/url] should do the trick.

[fert]

or you could try to open the page with fopen

[flash gordon]

[quote author=fert link=topic=123274.msg509264#msg509264 date=1169325932]
or you could try to open the page with fopen
[/quote]
That's pretty slick ;)

[Andy252]

[quote author=redbullmarky link=topic=123274.msg509260#msg509260 date=1169325000]
a mixture of [url=http://www.php.net/preg_match]preg_match[/url] and [url=http://www.phpfreaks.com/forums/index.php/board,43.0.html]regular expressions[/url] should do the trick.
[/quote]

Do you have an example, or somewhere where I could find such a thing ?

[bibby]

RegEx would verify that the string format is sound, and fopen would only work in read only mode.

When I scrape external site files, I use file() or file_get_contents();

[code]
if (!$file_get_contents($url))
{
    // then it's not real, or at least not accessible.
}
[/code]