├── README.md
├── config.php
├── current_version.txt
├── index.php
├── loader.gif
├── update-functions.php
├── update.js
├── version
    └── vnum_1.txt
└── version_check.php


/README.md:
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1 | # Simple-PHP-Auto-Update-System
2 | Allow users to update your web software with one click using PHP/Jquery and Text Files.
3 | 
4 | 
5 | Note: The (current_version.txt) on the external server only needs to contain the version number.


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/config.php:
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 1 | <?php
 2 | //
 3 | // download information
 4 | //
 5 | // location to download new version zip
 6 | $remote_file_url = 'http://albumart.flippenmusic.com/Alma_1115-13.zip'; #example: http://flippenmusic.com/v25.zip
 7 | // rename version location/name
 8 | $local_file = 'version/new-version.zip'; #example: version/new-version.zip
 9 | //
10 | // version check information
11 | //
12 | // url to external verification of version number as a .TXT file
13 | $ext_version_loc = "http://albumart.flippenmusic.com/current_version.txt"; #example: http://flippenmusic.com/version/current_version.txt
14 | // users local version number
15 | // added the 'uid' just to show that you can verify from an external server the 
16 | // users information. But it can be replaced with something more simple
17 | $vnum_loc = "version/vnum_". $_POST['uid'] .".txt"; #example: version/vnum_1.txt
18 | ?>


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/current_version.txt:
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1 | 2


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/index.php:
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1 | <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
2 | <script src="update.js" type="text/javascript"></script>
3 | <div>
4 | 	<div>
5 |     	Update Program. <a class="version_check" id="1" style="cursor: pointer;">Click here.</a>
6 |         <span class="loading"></span>
7 |     </div>
8 | </div>


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/loader.gif:
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https://raw.githubusercontent.com/seangarciafm/Simple-PHP-Auto-Update-System/755a33e282f5a2324f6dd29bb5b8b7b60a52311c/loader.gif


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/update-functions.php:
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 1 | <?php
 2 | // user update functions
 3 | require("config.php");
 4 | // copy the file from source server
 5 | $copy = copy($remote_file_url, $local_file);
 6 | // check for success or fail
 7 | if(!$copy){
 8 |     // data message if failed to copy from external server
 9 | 	$data = array("copy" => 0);
10 | }else{
11 | 	// success message, continue to unzip
12 |     $copy = 1;
13 | }
14 | // check for verification
15 | if($copy == 1){
16 | 	
17 | 	$path = pathinfo(realpath($local_file), PATHINFO_DIRNAME);
18 | 	// unzip update
19 | 	$zip = new ZipArchive;
20 | 	$res = $zip->open($local_file);
21 | 	if($res === TRUE){
22 | 		$zip->extractTo( $path );
23 | 		$zip->close();
24 | 		// success updating files
25 | 		$data = array("unzip" => 1);
26 | 		// delete zip file
27 | 		unlink($local_file);
28 | 		// update users local version number file
29 | 		$userfile = fopen ("version/vnum_". $_POST['uid'] .".txt", "w");
30 | 		$user_vnum = fgets($userfile);  
31 | 		fwrite($userfile, $_POST['vnum']);  
32 | 		fclose($userfile);
33 | 	}else{
34 | 		// error updating files
35 | 		$data = array("unzip" => 0);
36 | 		// delete potentially corrupt file
37 | 		unlink($local_file);
38 | 	}
39 | }
40 | // send the json data
41 | echo json_encode($data);
42 | ?>


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/update.js:
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 1 | // function to reorder
 2 | $(document).ready(function(){
 3 | 	// check users files and update with most recent version
 4 | 	$(".version_check").on('click',function(e) {
 5 | 		//$(".loading").show();
 6 | 		var uid = $(this).attr("id");
 7 | 		var info = "uid="+uid+"&vcheck=1";
 8 | 		$.ajax({
 9 | 		   beforeSend: function(){
10 | 			   $(".loading").html('<br><img src="loader.gif" width="16" height="16" />');
11 | 		   },
12 | 		   type: "POST",
13 | 		   url: "version_check.php",
14 | 		   data: info,
15 | 		   dataType: "json",
16 | 		   success: function(data){
17 | 			   // clear loading information
18 | 			   $(".loading").html("");
19 | 			   // check for version verification
20 | 			   if(data.version != 0){
21 | 				   var uInfo = "uid="+uid+"&vnum="+data.version
22 | 			    	$.ajax({
23 | 					   beforeSend: function(){
24 | 						   $(".loading").html('<br><img src="loader.gif" width="16" height="16" />');
25 | 					   },
26 | 					   type: "POST",
27 | 					   url: "update-functions.php",
28 | 					   data: uInfo,
29 | 					   dataType: "json",
30 | 					   success: function(data){
31 | 						   // check for version verification
32 | 			  			   if(data.copy != 0){ 
33 | 						   	   if(data.unzip == 1){ 
34 | 							       // clear loading information
35 | 						   		   $(".version_check").html("");
36 | 							       // successful update
37 | 						   	   	   $(".loading").html("Successful Update!");
38 | 							   }else{
39 | 								   // error during update/unzip   
40 | 								   $(".loading").html("<br>Sorry, there was an error with the update.");
41 | 							   }
42 | 						   }
43 | 					   },
44 | 					   error: function() {
45 | 						   // error
46 | 						   $(".loading").html('<br>There was an error updating your files.');
47 | 					   }
48 | 					});
49 | 			   }else{
50 | 				    // user has the latest version already installed
51 | 					$(".version_check").html("");   
52 | 					$(".loading").html("You already have the latest version.");   
53 | 			   }
54 | 		   },
55 | 		   error: function() {
56 | 			   // error
57 | 			   $(".loading").html('<br>There was an error checking your latest version.');
58 | 		   }
59 | 		});
60 | 	});
61 | });


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/version/vnum_1.txt:
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1 | 22


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/version_check.php:
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 1 | <?php
 2 | // check current version number
 3 | require("config.php");
 4 | // open version file on external server
 5 | $file = fopen ($ext_version_loc, "r");
 6 | $vnum = fgets($file);    
 7 | fclose($file);
 8 | // check users local file for version number
 9 | $userfile = fopen ($vnum_loc, "r");
10 | $user_vnum = fgets($userfile);    
11 | fclose($userfile);
12 | if($user_vnum == $vnum){
13 | 	// data
14 | 	$data = array("version" => 0);
15 | }else{
16 | 	// data
17 | 	$data = array("version" => $vnum);
18 | }
19 | // send the json data
20 | echo json_encode($data);
21 | ?>


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