Pass encoded stuff though a array with preg match

[luik]

Hi

Im trying to pass encoded stuff though a array, that then goes to preg match(should had been decoded somewere on the way) to see if there is a match or not. I have simple examples below, im only a beginer and i hope you can understand what im trying to do

This code is fine, it is what i need to add the decoding to. With info what it does below

$lines= array();

// All this does is get word list that is encoded(pre encoded eg czo3OiJlbmNvZGVkIjs=, ready to be only decoded)
$lines=file('myfile.txt') or problem('<b>System error code 2.</b>');

foreach($lines as $word){ 
//grab the footer to be compaired with our encoded word list that should had been decoded by now or it will try and match encoded stuff that dont exist
$html = @file_get_contents('footer.php') or problem('<b>System error code 3.</b>');
$html = strtolower($html);
if (preg_match("/".trim($word)."/i", "$html") == 1) {  

//if all is well the header well go and load the page
require_once('images/header.php'); } 

//else if we get to here words were not matched and we are not going to display the page at all and go to error page
else { problem($settings['sys-variables']); } }

// START problem()
function problem($myproblem) {
//html or what ever here
echo($myproblem);
exit();
}

myfile.txt

czoyODoiaWYgeW91IHJlYWRpbmcgbWUgaW0gZGVjb2RlZCI7
czoxNToic29tZSBtb3JlIHdvcmRzIjs=
czoyMDoiYW5kIG1vcmUgd29yZHMgYWdhaW4iOw==

Simple decode
$str = 'czoyODoiaWYgeW91IHJlYWRpbmcgbWUgaW0gZGVjb2RlZCI7';
$decoded = unserialize(base64_decode($str));
echo $decoded;

I have tried so many way, it cannot be passed here like my example below to be decoded, pregmatch tries to match the encoded lines


$encodedarraydata=file('myfile.txt');
$lines = unserialize(base64_decode($encodedarraydata));
$lines = array();

I been though so many different ways without doing any good but i cant code complex stuff and hoping some one would be kind enough to help

[Jeanco]

I'm not completely sure on what you're after here... but you say in your foreach statement that the encoded information should've been decoded by then.

I don't see anywhere this is would've happened.

FYI: When posting code in the forums, use [ PHP ] instead of [ code ] - it color codes it better for easy reading

If you want to see what an array is holding (such as $lines) you can use code like this:

echo "<pre>";
print_r($lines);
echo "</pre>"; 

If you put this just above your foreach statement you will be able to see whether its been decoded yet or not

[jondolar]

You are reading your footer file with every loop of the array. You probably only need to read your footer file once.

Is each line of your file myfile.txt encoded separately or does the entire content of the file include an encoded and serialized array?

If each line is encoded then you must do the following:
foreach($lines as $word){
$word= unserialize(base64_decode($word));
...

From your example, is each line a word or are there multiple words per line? You are reading the file and processing the lines as though each line in the file is a word with no other words (which is fine).

[Trent Reimer]

Hi luik,

Just a few things you may want to look at here and they all relate to the foreach loop:

1. Functions can only be declared once so they should not be declared inside a loop. You can declare the 'problem' function before the loop.

2. You need to read the 'footer.php' file in the $html variable once, so you can do that also before the loop starts.

3. You can easily decode your lines within the foreach loop.

// START problem()
function problem($myproblem) {
    //html or what ever here
    echo($myproblem);
    exit();
}

//grab the footer to be compaired with our encoded word list that should had been decoded by now or it will try and match encoded stuff that dont exist
$html = @file_get_contents('footer.php') or problem('<b>System error code 3.</b>');
$html = strtolower($html);

$lines= array();
// All this does is get word list that is encoded(pre encoded eg czo3OiJlbmNvZGVkIjs=, ready to be only decoded)
$lines=file('./myfile.txt') or problem('<b>System error code 2.</b>');

// We'll use a variable to test for a match.
$wordMatch = false;
foreach($lines as $word){
    // decode the string here
    $word = unserialize(base64_decode(trim($word)));
    if (preg_match("/".$word."/i", "$html") == 1) {
        $wordMatch = true;
        break; // no need to continue this loop
    }
}

if ($wordMatch) {
    //if all is well the header well go and load the page
    require_once('images/header.php');
} else {
    problem($settings['sys-variables']);
} 

[luik]

Thank you Jeanco, that does the trick

And thank you to Trent Reimer, your info is on summing up my code is excellent, i never new those things by being self taught, i might have to reveiw some of my other code and sort it out, interesting how it can work but not nesicarily mean it has been done correctly. It sounds like html validation, stuff can work but does not mean its spot on.