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Pass value from URL to iframe


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I'd like to pass a value from a URL to an iframe.


This would look as follows:


URL: http://www.mysite.com?www.mysite2.com


The value (www.mysite2.com) will be an actual web address which should then be inserted into an iframe on www.mysite.com via php.


Since I know little to no php, I don't know how the URL has to be structured and what php coding I need to use to include the web address in the iframe.


Any suggestions are highly appreciated :)


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Here, just made this up for you. I tried to handle if no http or if they type uppercase.


function getparsedHost($new_parse_url) {
                $parsedUrl = parse_url(trim($new_parse_url));
                return trim($parsedUrl[host] ? $parsedUrl[host] : array_shift(explode('/', $parsedUrl[path], 2)));
$url = mysql_real_escape_string($_GET['url']);

$url_input = mysql_real_escape_string($url);
$input_parse_url = strtolower(getparsedHost($url_input));

            /*check for valid urls*/
            if ((substr($input_parse_url, 0,  == "https://") OR (substr($input_parse_url, 0, 12) == "https://www.") OR (substr($input_parse_url, 0, 7) == "http://") OR (substr($input_parse_url, 0, 11) == "http://www.") OR (substr($input_parse_url, 0, 6) == "ftp://")  OR (substr($input_parse_url, 0, 11) == "feed://www.")OR (substr($input_parse_url, 0, 7) == "feed://")) {
                $new_parse_url = $input_parse_url;

            } else {
                /*replace uppercase or unsupported to normal*/
                $clean_url .= str_replace(array('feed://www.','feed://','HTTP://','HTTP://www.','HTTP://WWW.','http://WWW.','HTTPS://','HTTPS://www.','HTTPS://WWW.','https://WWW.'), '', $input_parse_url);
                $new_parse_url = "http://$clean_url";

if (!isset($_GET['url'])) {
$new_parse_url = "http://www.google.com";
<div align="center">;
<form action="" method="get">
Insert url: <input type="text" name="url" value="<?php echo $new_parse_url;?>" class="text" style="width:480px; height:25px;" /> 
<input type="submit" value="Go" class="button" style="width:80px; height:30px;" />
<iframe src ="<?php echo $new_parse_url;?>" width="100%" height="500">
  <p>Your browser does not support iframes.</p>

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