Link checker

**Jona** · 05-17-2003 12:03 PM

Well, I don't know ASP and I don't want to learn it yet.. It's too hard! lol I don't know why Microsoft makes everything in caps and stuff... Also, Brinkster doesn't have much bandwidth at all--something that I need.

There is also http://freewebs.com/ which offers no ads, PHP support, and is free...

**Nevermore** · 05-17-2003 12:06 PM

Freewebs also have CGI, so you could use them for your link checker. What do you want to check the links of, by the way?

**Jona** · 05-17-2003 12:10 PM

I basically just want to learn all of the practical (or impractical, lol) uses of PHP. I want to learn all that "extra" stuff that no one bothers with. I want to just learn all I can! I don't have a book or anything to learn from... All I have is http://php.net/ a useful resource, but not a tutorial area.

Programming and HTML have their advantages, HTML is easy to learn yet you have to have valid HTML; in programming there is no "valid" or "invalid" unless it's a syntax error or something... Which is its advantage over HTML. Programming is also more powerful (duh, how do you think they came up with HTML? lol).

BTW, don't say to go to Webmonkey.lycos.com or whatever it is for PHP tutorials because none of the ones there are any good... At least, not to me.

**AdamGundry** · 05-17-2003 12:41 PM

HTML is easy to learn

I suppose it depends on how you code - I found programming fairly easy to pick up, but learning to hard-code HTML took longer. HTML does have editors though, which makes it a lot easier.

Of course, you then get on to whether a RAD tool like Delphi or another IDE is an editor, and to "hard-code" you should be doing everything manually.

Good luck with learning PHP - it's a great language. I'm gradually learning, and I agree with you - the best resources is the website.

Adam

P.S. A good way I found to learn was (i) to make something I enjoy (internet games), and (ii) set up a webserver on my computer so I can test much more easily.

**Jona** · 05-17-2003 12:46 PM

Adam, that's exactly what I do. I just don't enjoy making games, I enjoy making more complex things... I satisfy myself more often when I accomplish something and don't get frustrated. lol

Also, I have the http://aprelium.com/ Web server installed on my system so I can run PHP (and I can also download CGI) scripts on my local machine. The one thing is I can't CHMOD folders...

**Nevermore** · 05-17-2003 01:40 PM

Thanks for the link to the server - it's the only one I've seen that I can run. Now I can test PHP more easily. I was running a link through my server - they aren't exactly miles from one another...

**Jona** · 05-17-2003 02:08 PM

No problem.

**pyro** · 05-19-2003 03:48 PM

I think this is what you are looking for, Jona:

PHP Code:


<html>

<head>

<title>Link Validator</title>

<style type="text/css">

a {

    color:darkblue;

}

</style>



</head>

<body>



Input a full url (ie. http://www.infinitypages.com/index.php).



<form action="checklinks.php" method="post">

<input type="text" name="url" size="50">

<input type="submit" name="submit" value="Check links">

</form>



<?php



#######################################################

# This script is Copyright 2003, Infinity Web Design  #

# Written by Ryan Brill - ryan@infinitypages.com      #

# All Rights Reserved - Do not remove this notice     #

#######################################################



if ($_POST["url"]) {

    

    $file = $_POST["url"];

    

    echo "Links in file <a href=\"$file\">$file</a>:<br/><br/>\n";

    

    $x = 1;

    $valid = 0;

    $invalid = 0;

    

    $filename = split("/",$file);

    $filename = $filename[count($filename)-1];

    $path = split($filename, $file);

    $path = $path[0];

    

    $contents = @file($file) or die ("Failed to open <a href=\"$file\">$file</a> to check links. Please be sure it is an absolute URL.");

    

    foreach ($contents as $line_num => $line) {

        if (preg_match('/\<a href=.*?\>/', $line, $a)) {

            for ($i = 0; $i < count($a); $i++) {

                $url = preg_split("/href=['\"]/", $a[$i]);

                $url2 = preg_split("/['\"]/", $url[1]);

                $spliturl = parse_url($url2[0]);

    

                if ($spliturl[scheme] == "") {

                    $finalurl = $path.$url2[0]; 

                }

                else {

                    $finalurl = $url2[0];

                }

                

                if (strtolower($spliturl[scheme]) != "mailto") {

                    $code = @file ($finalurl);// file to open

                    if (!$code) {

                        echo "<span style=\"color:darkred;\">Invalid:</span> <a href=\"$finalurl\">$finalurl</a><br/>\n";

                        $invalid++;

                    }

                    else {                    

                        echo "<span style=\"color:green;\">Valid:</span> <a href=\"$finalurl\">$finalurl</a><br/>\n";

                        $valid++;

                    }

                }

            }

        }

    }

}



if ($x == 1) {

    echo "<br/>\n";

    echo $valid+$invalid." links checked.<br/>\n";

    if ($valid > 0) {

        echo "<span style=\"color:green;\">$valid valid links found.</span><br/>\n";    }

    if ($invalid > 0) {

        echo "<span style=\"color:darkred;\">$invalid invalid links found.</span><br/>\n";

    }

}

?>



</body>

</html>

**Nevermore** · 05-19-2003 03:56 PM

Woah...

**pyro** · 05-19-2003 04:20 PM

Like it?

**Jona** · 05-19-2003 04:21 PM

Yup, Cijori, Pyro knows his stuff and he knows it well!

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