Edit a PHP file with PHP without duplicate content - php

Question

So I have been trying to edit a PHP file after it is created and I seem to keep running into problems.
Here is my source code.
if($pbtype == 'pwall' OR $pbtype == 'cl')
{
$file = '../postback/pwallpb.php';
$pbac = '../postback/'.md5($affn).'.php';
}
else
{
$file = '../postback/postback.php';
$pbac = '../postback/'.md5($affn).'.php';
}
copy($file, $pbac);
// Read the while file into a string $htaccess
$files = file_get_contents($pbac);
// Stick the new IP just before the closing </files>
$new_files = str_replace('//NET NAME//', "$affn", $files);
$new_files .= str_replace('// IP 1 //', "$affip", $files);
$new_files .= str_replace('// IP 2 //', "$affip2", $files);
$new_files .= str_replace('// IP 3 //', "$affip3", $files);
$new_files .= str_replace('// IP 4 //', "$affip4", $files);
// And write the new string back to the file
file_put_contents($pbac, $new_files);
$pback = '/postback/'.md5($affn).'.php';
it creates the file. it is not a premissions problem, it edits file as well, but it generates the php each time i do a string replace, So id I str_replace 5 times then there is 5 instances of the code blocks in the file. what is it that I am doing wrong?
update to my code. what did i do wrong this time?
if($pbtype == 'pwall' OR $pbtype == 'cl')
{
$file = '../postback/pwallpb.php';
$pbac = '../postback/'.md5($affn).'.php';
}
else
{
$file = '../postback/postback.php';
$pbac = '../postback/'.md5($affn).'.php';
}
$myfile = fopen($file, "r") or die("Unable to open file!");
$files = fread($myfile,filesize($file));
fclose($myfile);
// Stick the new IP just before the closing </files>
$new_files = str_replace('||NETNAME||', $affn, $files);
$new_files = str_replace('||IP1||', $affip, $files);
$new_files = str_replace('||IP2||', $affip2, $files);
$new_files = str_replace('||IP3||', $affip3, $files);
$new_files = str_replace('||IP4||', $affip4, $files);
// And write the new string back to the file
$fh = fopen($pbac, 'w') or die("can't open file");
$stringData = $new_files;
fwrite($fh, $stringData);
fclose($fh);
$pback = '/postback/'.md5($affn).'.php';

Answer 1

This works and is tested:
error_reporting(-1);
ini_set('display_errors', 'On');
if($pbtype == 'pwall' OR $pbtype == 'cl')
{
$file = 'pwallpb.php';
$pbac = md5($affn).'.php';
}
else
{
$file = 'postback.php';
$pbac = md5($affn).'.php';
}
$myfile = fopen('../postback/' . $file, "r") or die("Unable to open file!");
$files = fread($myfile,filesize($pbac));
fclose($myfile);
// Stick the new IP just before the closing </files>
$new_files = str_replace('||NetName||', $affn, $files);
$new_files = str_replace('||IP1||', $affip, $new_files);
$new_files = str_replace('||IP2||', $affip2, $new_files);
$new_files = str_replace('||IP3||', $affip3, $new_files);
$new_files = str_replace('||IP4||', $affip4, $new_files);
$myFile = md5($affn).'.php';
$fh = fopen('../postback/' . $myFile, 'w') or die("can't open file");
$stringData = $new_files;
fwrite($fh, $stringData);
fclose($fh);
$pback = '../postback/'.md5($affn).'.php';
Test File renders this:
$IParray=array("1.2.3.4","2.3.4.5","4.5.6.7","5.6.7.8");

Answer 2

You are using ".=" instead of "=". ".=" appends your results to the file. Your code might look better like this:
if($pbtype == 'pwall' OR $pbtype == 'cl')
{
$file = '../postback/pwallpb.php';
}
else
{
$file = '../postback/postback.php';
}
$pbac = '../postback/'.md5($affn).'.php';
copy($file, $pbac);
// Read the while file into a string $htaccess
$files = file_get_contents($pbac);
// Stick the new IP just before the closing </files>
$searchArray = array('//NET NAME//','// IP 1 //','// IP 2 //','// IP 3 //','// IP 4 //');
$replaceArray = array("$affn","$affip","$affip2","$affip3","$affip4");
$new_files = str_replace($searchArray,$replaceArray,$files);
// And write the new string back to the file
file_put_contents($pbac, $new_files);
$pback = '/postback/'.md5($affn).'.php';