Add exams from exam58 to exam98

exam92/FileBasedUniqueHC/count.php

@@ -0,0 +1,36 @@
+<?php 
+
+function hit_count(){
+
+    $ip_address = $_SERVER['REMOTE_ADDR'];
+
+    $ip_file = file('ip.txt');
+    foreach($ip_file as $ip){
+        $ip_single = trim($ip);
+        if ($ip_address == $ip_single){
+            $found = true;
+            break;
+        } else {
+            $found = false;
+            
+        }
+    }
+
+    if($found == true){
+        $filename = 'count.txt';
+        $handle = fopen($filename, 'r');
+        $current = fread($handle, filesize($filename));
+        fclose($handle);
+         $current_inc = $current + 1;
+
+        $handle = fopen($filename, 'w');
+        fwrite($handle,$current_inc);
+        fclose($handle);
+        
+        $handle = fopen('ip.txt', 'a');
+        fwrite($handle, $ip_address."\n");
+        fclose($handle);
+    }
+}
+
+?>

exam92/FileBasedUniqueHC/count.txt

@@ -0,0 +1 @@
+7

exam92/FileBasedUniqueHC/index.php

@@ -0,0 +1,7 @@
+<?php
+
+include 'count.php';
+
+hit_count();
+
+?>

exam92/FileBasedUniqueHC/ip.txt

@@ -0,0 +1,7 @@
+127.0.0.1
+127.0.0.1
+127.0.0.1
+127.0.0.1
+127.0.0.1
+127.0.0.1
+127.0.0.1