PHP Web Virus removal class _php tips

This example describes the PHP Web virus cleanup class. Share to everyone for your reference. Specifically as follows:

Believe that a lot of people's web pages are often unreasonable in the php,asp,html,js and other files in the background with some Trojan address, causing a lot of trouble! I used to have a station is this, so a hate to write this code, although the article has a little waste of resources, but always better than our manual removal, the following I speak for the program to remove the virus principle.

First of all to read $checkFile file This article is to determine whether an article is infected, if it is the implementation of $savafile variables inside the TXT file path of all files, carry out the Infecfile virus list to clear once.

Copy Code code as follows:

<?php
Class clear_virus{
Public $content;
Public $infectFile = ' virus.txt ';//virus file list file
Public $savefile = "save.txt";//file List of view viruses
Public $TIMEP = ' time.txt ';//Some Records purge virus time
Public $checkFile = ' e.php ';//here is the setting
Public $run = 0;
Public $virus _type;
Public $replace;
Public $filepath;
Public $tag = 0;

function Open_file () {
$this->read_virus ();
$this->check_file ();
if ($this->run) {
$this->update_time ();
$this->read_file ();
foreach ($this->filepath as $tmppath) {
if (file_exists ($tmppath)) {
$tmp _file =file_get_contents ($tmppath);
Print_r ($this->virus_type);
For ($i =0 $i <sizeof ($this->virus_type); $i + +) {
if (Strrpos ($tmp _file, $this->virus_type[$i])!== false) {
$tmp _file =str_replace ($this->virus_type[$i], ", $tmp _file);
$this->tag = 1;
}
}
if ($this->tag) {
$handle =fopen ($tmppath, ' w ');
Fwrite ($handle, $tmp _file);
Fclose ($handle);
unset ($tmp _file);
}

}else{
;
}
}
}
}

function Check_file () {
if (file_exists ($this->checkfile)) {
$temp =file_get_contents ($this->checkfile);
Echo $temp;
foreach ($this->virus_type as $v _tmp) {
if (Strrpos ($temp, $v _tmp)!== false) {
$this->run = 1;
Break
}
}
Echo $this->run;
Unset ($temp);
}else{
$this->show_error (5);
}
}

function Update_time () {
if (file_exists ($this->timep)) {
$tmp _time =date ("y-m-d h:i:s"). Chr (13). ' | ';
$tmp _fp =fopen ($this->timep, ' A + ');
Fwrite ($tmp _fp, $tmp _time);
Fclose ($tmp _fp);
}

}


function Read_file () {
if (file_exists ($this->savefile)) {
$this->content =file ($this->savefile);
if (Is_array ($this->content)) {
$this->filepath = $this->content;
}else{
$this->show_error (3);
}
}else{
$this->show_error (4);
}
}


function Read_virus () {
if (file_exists ($this->infectfile)) {
$this->replace =file ($this->infectfile);
if (Is_array ($this->replace)) {
$this->virus_type= $this->replace;
}else{
$this->show_error (1);
}
}else{
$this->show_error (2);
}
}


function Show_error ($number) {
$array = Array (
' 1 ' => ' virus file not readable! ',
' 2 ' => ' virus file list does not exist! ',
' 3 ' => ' file list doesn't exist ',
' 4 ' => ' files are not saved ',
' 5 ' => $this-> $checkFile. ' No, please set the virus infection file '
);
echo $array [$number];
}

}
$virus =new Clear_virus;
$virus->open_file ();
?>

I hope this article will help you with your PHP program design.