php auto generate code on the same file - php

Question

The following code generates a new php file playlist.php which contains the code as in $start $result variable
$path = "./files/";
$path2="http://".$_SERVER['SERVER_NAME'].dirname($_SERVER["PHP_SELF"])."/files/";
//echo $path2;
$folder = opendir($path);
$start="<asx version='3.0'>\n<title>Example ASX playlist</title>";
$Fnm = "./playlist.php";
$inF = fopen($Fnm,"w");
fwrite($inF,$start."\n");
while( $file = readdir($folder) ) {
if (($file != '.')&&($file != '..')&&($file != 'index.htm')){
$result="<entry>\n<title>$file</title>\n<ref href='$path2$file'/>\n<param name='image' value='preview.jpg'/>\n</entry>\n";
fwrite($inF,$result);
}
}
fwrite($inF,"</asx>");
closedir($folder);
fclose($inF);
I want to generate the same code in the same file which contains this code on a specified line number
is this possible ?
The above php script generates the following code on a new file
http://tinypaste.com/ff242cd6

Answer 1

Here's how to append:
$path = "./files/";
$path2="http://".$_SERVER['SERVER_NAME'].dirname($_SERVER["PHP_SELF"])."/files/";
//echo $path2;
$folder = opendir($path);
$start="<asx version='3.0'>\n<title>Example ASX playlist</title>";
$Fnm = "./playlist.php";
// build content
$fileContent=$start.'/n';
while( $file = readdir($folder) ) {
if (($file != '.')&&($file != '..')&&($file != 'index.htm')){
$result="<entry>\n<title>$file</title>\n<ref href='$path2$file'/>\n<param name='image' value='preview.jpg'/>\n</entry>\n";
//append to content
$fileContent .= $result;
}
}
//append to content
$fileContent .= "</asx>";
// append to file and check status
if ( file_put_contents(__FILE__ , $fileContent , FILE_APPEND) === false )
{
echo "failed to put contents in ".__FILE__."<br>";
}
That should do it...
EDIT:
Okay, before I get into it, you should first take a look at some basic PHP tutorials which can be found all over the net.
SO, instead of writing the content to the file, just echo it, and add your dynamic stuff while you echo:
$title='the title of your playlist';
$start="<asx version='3.0'>\n<title>".$title."</title>/n";
while( $file = readdir($folder) ) {
if (($file != '.')&&($file != '..')&&($file != 'index.htm')){
$result="<entry>\n<title>$file</title>\n<ref href='$path2.$file'/>\n<param name='image' value='preview.jpg'/>\n</entry>\n";
}
}
$endCont = $start.$result."</asx>";
echo $endCont;
I created a new variable called $title. The value of that will be the title generated in the output. You can do this with other tags too like you've done with <entry>\n<title>$file</title>.

Answer 2

echo highlight_file(__FILE__,true);
http://www.php.net/manual/en/function.show-source.php
This gets you back the source code of the current file.