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POHow to place Variables within a Variable PHP
 

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  1. POHow to place Variables within a Variable PHP
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    <p>its been a long time since i've done any PHP coding so I'm really back to square one, apologies in advance if I am missing something really obvious/trivial.</p> <p>I am trying to create a form, which processes and submits the data and appends a piece of code to a specific section of an XML file.</p> <p>This is what I've got</p> <pre><code>&lt;? $title = $_POST['title'] ; $author = $_POST['author']; $filesize = $_POST['filesize']; $pubdate = $_POST['pubdate']; $duration = $_POST['duration']; $summary = $_POST['summary']; $key = '&lt;itunes:category text="Business"&gt;&lt;/itunes:category&gt;'; $newline = '&lt;item&gt; &lt;title&gt;$title&lt;/title&gt; &lt;link&gt;http://example.com/CS/podcast/&lt;? php echo($target_path);?&gt;&lt;/link&gt; &lt;itunes:author&gt;$author&lt;/itunes:author&gt; &lt;itunes:summary&gt;&lt;?php echo($summary); ?&gt;&lt;/itunes:summary&gt; &lt;enclosure url="http://example.com/CS/$targetpath" length="$filesize" type="audio/mpeg"/&gt; &lt;guid&gt;http://www.example.com/CS/podcast/&lt;? php echo($target_path);?&gt;&lt;/guid&gt; &lt;pubDate&gt;&lt;?php echo($pubdate);?&gt;&lt;/pubDate&gt; &lt;itunes:duration&gt;&lt;?php echo($duration);?&gt;&lt;/itunes:duration&gt; &lt;itunes:keywords&gt;My Podcast&lt;/itunes:keywords&gt; &lt;category&gt;Podcasts&lt;/category&gt; &lt;itunes:explicit&gt;no&lt;/itunes:explicit&gt; &lt;/item&gt;'; //copy file to prevent double entry $file = "list.xml"; $newfile = "listtemp.xml"; copy($file, $newfile) or exit("failed to copy $file"); //load file into $lines array $fc = fopen ($file, "r"); while (!feof ($fc)) { $buffer = fgets($fc, 4096); $lines[] = $buffer;} fclose ($fc); //open same file and use "w" to clear file $f=fopen($newfile,"w") or die("couldn't open $file"); /* uncomment to debug print_r($lines); print "&lt;br&gt;\n"; */ //loop through array using foreach foreach($lines as $line){ fwrite($f,$line); //place $line back in file if (strstr($line,$key)){ //look for $key in each line fwrite($f,$newline."\n"); } //place $line back in file } fclose($f); copy($newfile, $file) or exit("failed to copy $newfile"); echo "done"; echo "$newline";?&gt; </code></pre> <p>The issue I seem to have is that it appends the code perfectly into the right place, but displays $title instead of the inputted title the same is true of </p> <p>I think the issue is that you cannot have a variable within another variable, since it could be dangerous if anyone could just type code into forms, is there a way around this? I don't even need tight security as this would be soley for internal use.</p> <p>Found</p> <p><a href="http://uk3.php.net/manual/en/function.eval.php" rel="nofollow">http://uk3.php.net/manual/en/function.eval.php</a> but not been able to put it to good use.</p> <p>Thank-you</p>
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    1. COIf I understand correctly, you want to write the **actual variable** to the file and not its value?
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    2. COYou don't need top open close php tags when you're already in PHP.
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      1. USGerben Jacobs
 

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