Problem verifying URL! help..

[evo4ever]

Hey guys. I've just wrote a little script which verifies user input, im having trouble with one part of it. Heres my code:

<?php
             /* This part is fine

if($_POST["do"] == "yes")
{
	if($_POST["url"] == "")
	{
		$_POST["do"] = "no";

		echo "<li><font size=\"2\" face=\"Tahoma\"><b>You must enter a URL!</b><br></li><hr></font>";
	}
} 

            */

if($_POST["do"] == "yes")
{
	if(!file_exists($_POST["url"]))
	{
		$_POST["do"] = "no";

		echo "<li><font size=\"2\" face=\"Tahoma\"><b>No Such URL!</b><br></li><hr></font>";
	}
}
?>

The file_exists() function always thinks a URL doesnt exist! Go here to see:
http://phpevo.com/_php/html_grabber.php
Any suggestions? thx.

[shawon22]

i don't think file_exists() function works for urls try fopen()

<?php
             /* This part is fine

if($_POST["do"] == "yes")
{
    if($_POST["url"] == "")
    {
        $_POST["do"] = "no";

        echo "<li><font size=\"2\" face=\"Tahoma\"><b>You must enter a URL!</b><br></li><hr></font>";
    }
} 

            */

if($_POST["do"] == "yes")
{
    if(!fopen($_POST["url"], "r"))
    {
        $_POST["do"] = "no";

        echo "<li><font size=\"2\" face=\"Tahoma\"><b>No Such URL!</b><br></li><hr></font>";
    }
}
?>

[evo4ever]

do you know of any functions which checks if the URL exists/or is valid?

[shawon22]

check my edited post above :-)

[evo4ever]

I found out how to do it before you edited. I researched on php.net. And found out that if u do an fopen on a remote file and it returns false then the file doesnt exist, it can be used as verifying urls! Thx for your help anyway, most appreciated!

[evo4ever]

Hmm. My research has fixed the problem, however, php itself compains that thr url doesnt exist aswel. It throws a warning at me :mad:

Two warning:

Warning: php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/virtual/site29/fst/var/www/html/_php/html_grabber.php on line 13

Warning: fopen("http://www.fdhfdhdfh.com", "r") - Bad file descriptor in /home/virtual/site29/fst/var/www/html/_php/html_grabber.php on line 13

http://phpevo.com/_php/html_grabber.php <- take a look.

PS: Alright IAN! Its me Michael Evans from college!

[diego25]

Maybe your DNS server is not setup correctly? Or maybe your host disabled it?

Diego

[shawon22]

use "@" before the function and it won't throw any erros

  if($_POST["do"] == "yes")
    {
        if(!@fopen($_POST["url"], "r"))
        {
            $_POST["do"] = "no";

        echo "<li><font size=\"2\" face=\"Tahoma\"><b>No Such URL!</b><br></li><hr></font>";
    }
}

[evo4ever]

Gah! I forgot the '@' operator. Now why didnt I think of that? thx again!