How can I get my global variables to update during recursive function calls?

Darklighter · July 4, 2009

I have run into an unusual problem for the first time while building my website. I have a recursive program that scans through many predefined folders and the subfolders it finds, looking for particular files. It then should update the global $counter variable and put it into the table that displays the results. But the $counter variable remains unchanged during this process. I have tried passing the "global" variable through every function, I have even tried a global array and adding to it, extracting the count()...Nothing seems to work. I do not understand why, as I have never had this problem before. but I have never used a recursive function either. Instead of calling a function, how can I use a GoTo command like in Visual Basic, telling the interpreter to jump to a specific line? For some reason, the value (object itself?) seems to be lost when I change functions, even if the variable is declared immediately after <?php....Below is a copy/paste of the code, which is easier to read in wordpad or php editor, because I like to indent my functions...

<?php

$array = array("");

print "<html>

<head>

<title>Article Statistics (EZHouseFixes.com ©Brandon Day)</title>

</head>

<tr>

#<img src=\"/Images/desc.gif\" border=\"0\" width=\"10\" height=\"10\"></td>

Document Title<img src=\"/Images/none.gif\" border=\"0\" width=\"10\" height=\"10\"></td>

Date <img src=\"/Images/none.gif\" border=\"0\" width=\"10\" height=\"10\"></td>

Rating<img src=\"/Images/none.gif\" border=\"0\" width=\"10\" height=\"10\"></td>

Path<img src=\"/Images/none.gif\" border=\"0\" width=\"10\" height=\"10\"></td>

Hits<img src=\"/Images/none.gif\" border=\"0\" width=\"10\" height=\"10\"></td>

Size<img src=\"/Images/none.gif\" border=\"0\" width=\"10\" height=\"10\"></td>

Difficulty<img src=\"/Images/none.gif\" border=\"0\" width=\"10\" height=\"10\"></td>

<td class=\"\" align=\"left\" width=\"8\">Tools</td>

</tr>

</thead>

</thead>

<tbody class=\"scrollContent bodyFormat\" style=\"height:200px;\">";

$fh = fopen("System Logs/HitCounter.txt","r");

$counter = fread($fh,filesize("System Logs/HitCounter.txt")+1);

fclose($fh);

$fh = fopen("System Logs/Visitors.txt","r");

$visitors = fgets($fh);

fclose($fh);

print "<form name=\"console\" action \"console.php\" method=post><input type=hidden name=\"action\" value=\"\">

This website has been visited <a href=/System%20Logs/Hits.txt target=\"console_details\">$counter times</a> by <a href=/System%20Logs/Visitors.txt target=\"console_details\">$visitors unique visitors</a> sinse May 21, 2009";

print "<script>

function SetAction(act, info) {

document.console.action.value = act;

document.console.data.value=info;

if (info.indexOf(\"/\") > -1){

arr = info.split(\"/\");

b=arr[0];

s=arr[1];

t=arr[2];

p=arr[3];

}

if (act == 'delete' || act == 'hide' || act == 'profile' || act == 'edit'){

document.console.browse.value=b;

document.console.topic.value=t;

document.console.section.value=s;

document.console.page.value=p;

document.console.submit();

} else {

alert('Function pending...!');

}

</script>";

function PrintNumericAverageRating($pth){

if (is_file( $pth)) {

$fh = fopen($pth, "r");

while (! feof($fh)){

$r = $r + fgets($fh);

$c++;

}

$a = round($r / $c,2);

print $a;

} else {

print "0";

}

function ScanBrowse($dir, $articlecount) {

if ($handle = opendir($dir)) {

while ($fld = readdir($handle)){

clearstatcache();

if (is_dir($dir . '/' . $fld)) {

if ($fld != "." && $fld != "..") {

$a = explode("/", "$dir/$fld");

$depth = count($a);

if ($depth == "4") {

if (is_file("$dir/$fld/list.htm")) { ScanList ("$dir/$fld", $articlecount); }

} else {

ScanBrowse ($dir . '/' . $fld, $articlecount);

}

function StartScan(){

ScanBrowse('Location', $articlecount);

ScanBrowse('Task');

ScanBrowse('Trade');

}

function ApplyFound ($pth, $Name, $Author, $Created, $Rating, $Location, $Size, $Difficulty, $counter, $articlecount) {

$array[] = "";

$articlecount =$articlecount +1;

$arr = explode("/", $pth);

$b = $arr[1];

$s = $arr[2];

$t = $arr[3];

$p = $arr[4];

$cmd = "http://ezhousefixes.com/index.php?action=article&browse=$b&section=$s&topic=$t&page=$Name";

$nav = str_replace("Home_Repairs > ", "", str_replace("/", " > ", $pth));

$lnk = "<a href=\"$cmd\" target=\"EZHF Main\">$Name</a>";

if ($trclass == "<tr>"){

$trclass ="<tr class=\"alternateRow\">";

} else {

$trclass = "<tr>";

}

print "\n

$trclass<td valign=\"top\"> " . number_format(count($array)) . "</td>

<td valign=\"top\">$Created</td>

<td valign=\"top\">";

PrintNumericAverageRating("$pth/$Name/Ratings.txt");

$spot = "$b/$s/$t/$Name";

print "</td>

<td valign=\"top\">$counter</td>

<td valign=\"top\">$Difficulty</td>

</td>\n

</tr>\n";

}

function ScanList($pth, $articlecount){

$fh = fopen($pth . "/list.htm", "r");

while (! feof($fh)){

$Name="";

$fc = fgets($fh);

parse_str($fc);

if ($Name != "") {

$fh2 = fopen($pth . "/" . $Name . "/HitCounter.txt", "r");

$counter = fgets($fh2);

fclose($fh2);

ApplyFound($pth, $Name, $Author, $Created, $Rating, $Location, $Size, $Experience, $counter, $articlecount);

}

fclose($fh);

}

ScanBrowse("Home_Repairs", $articlecount);

?>

playcraft · July 4, 2009

here is a simple script to throw each line into an array. You can then access any line via the array.

<?php
$handle = @fopen('yourfile...', "r");
if ($handle) {
  while (!feof($handle)) {
   $lines[] = fgets($handle, 4096);
  }
  fclose($handle);
}
?>

Notice the array is $line.

How can I get my global variables to update during recursive function calls?

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