check if url contains http://

[suckand]

hi all,
i am writing a guestbook with the option to enter a website. what i am searching for but not found yet is a possibility to check if this url entered by the user contains the http:// tag at the beginning to avoid opening the url in the current directory.

thanks in advance!

[EviL_CodE]

if(substr($strURL,0,7)=='http://') {
//exists		
}
else {
	//does not exist
}

or

http://php.net/strstr

$string = "PHP"; 
$container = "I love writing PHP code."; 

if(strstr($container,$string)) { 
    echo "found it."; 
} else { 
    echo "not found."; 
}

[artbones]

Before sending to database or text file, run an eregi function:

$website = ereg_replace("http://", "", $website );

If you need to set the link back up later, just do something like:

printf("<a href='http://$website'>$linkname</a>");

Hope that helps.

[suckand]

thanks, both works fine 🙂