PHP - Class File That Includes Files With Other Classes

HI everyone!

So basically I have this class called Login and another class classed Reports. They both extend a main class called OOP. I'm trying to get classes now and in the future, when I add on, to access that class so that way I dont have to create a new object everytime I need to do that. Plus I know I dont want to rely on calling another class inside of one class.

Here is an example

The Super Class

class OOP{
public function Login($pointer){
$Login->{$pointer}();
}

public function Reports($pointer){
$Reports->{$pointer}()
}
}


Login Class

class Login extends OOP{
public function userLogin($user, $pass){
//Login code here
//if error occurs, send it to Reports
super::Reports(Error());
}
}


Reports Class

class Reports extends OOP{
public function Error(){
//Send an error here
}
}


Here is how I think I would call the class if a user was to login.

$OOP = new OOP();

$OOP->Login(userLogin($user, $pass));


So now when I need to call any class I should be able to, correct?


If you are confused about the top, then think of it this way:
I am trying to create a class to where I can call or reference to ANY object now or in the future so I can add on and call that class from another class.


Thank you for any help.

This may sound like a very stupid question, but I can't find a clear answer anywhere.

I'm making my first dive in OOP and all the tutorials only really show basic usage. They define a class, and show how to use it in a file.

My question is how does it work to use an object throughout a program? Is it available everywhere or do I store things in sessions and start a new object on each page?

For example: logging in a user. If I created an instance after confirming the credentials, would that same instance be available for use in say index.php, or would I just pass a session over and create a new instance on each page?

Again, sorry if this seems dumb to some people.

I've been trying to solve this for a while now, but still haven't had any luck.

What I'm trying to do is this:

$class = new BaseClass;
$var = $class->load("subclass")->subclass_function("info");

Thanks in advance
Ayon

my directory on my mamp server looks like this;

root/website/index.php

I also have some files in a folder like this

root/website/pages/files.php

My include code is this
include("functions.php");

When I try to include a file from the 'website' folder from a page in the 'pages' folder. It gives me errors that look like this.

Warning: include(functions.php) [function.include]: failed to open stream: No such file or directory in /website/pages/contact.php on line 2

Warning: include() [function.include]: Failed opening 'functions.php' for inclusion (include_path='.:/Applications/MAMP/bin/php5.3/lib/php') in /Applications/MAMP/htdocs/website/pages/contact.php on line 2



That's what it looks like.. I can't get it working.

Using PHP Version 5.2.13
My question: How do I access a class and it's methods from an included file?

I have an Index.php page that calls two methods:
<?php get_header(); ?>
<?php get_footer(); ?>

and it creates a class in an include file
<?php include_once($_SERVER['DOCUMENT_ROOT'].'/includes/common.html');?>
   $site = new WebSite($site_name); // Creates a bunch of properties, defines some methods, etc...
              $site->initialize();

<?php get_header(); ?> ends up including a another file (header.php)
<?php get_header(); ?> ends up including a another file (footer.php)

All calls in Index.php to methods in my class work. ie <?php $site->display_section('column'); ?>
But calls in either the header.php or footer.php to methods in my class fail with "Call to a member function is not an object".
I understand what the error means but I don't understand why. I thought all functions and classes defined in an include file have global scope. As per PHP.NET's documentation:

"When a file is included, the code it contains inherits the variable scope of the line on which the include occurs. Any variables available at that line in the calling file will be available within the called file, from that point forward. However, all functions and classes defined in the included file have the global scope."

The include that creates the class is something that I have inherited from another developer and I actually can't change the scope. I've tried with global $site = new WebSite($site_name);. It actually breaks the entire site.

How can I access classes, properties, methods in an include file?

Any help would be appreciated. I've been racking my head for several days now on it and it's probably some newbie thing that I am completely overlooking. I hope I've provided enough background and info.

Thanks,

Brian

I been wondering how to protect all the files that contain classes, functions and forms in php to prevent direct access to something that the user shouldnt be able to without the proper check's (typing http://server/inc/login.php insteand of http://server/), and i came to this small idea of checking if an object is set or not but i m wondering if this is really the best idea here's what i have (the case bellow will protect an login form to be accessed directly):

Code: [Select]
<?php
    if(!isset($mysqlobj)) die();
    if( isset( $_POST['username'] ) && isset( $_POST['password'] ) ){
        $login = authentication::login( $_POST['username'], $_POST['password'] );
        if( $login == true ){
            header( 'location:?go=home' );
        }else{
            $_SESSION['message'] = 'loginfailed';
            header( 'location:?go=login' );
        }
    }else{
      if( !empty($_SESSION['logged'] ) && $_SESSION['logged'] == true ){
          header( 'location:?go=home' );
      }else{
          ?>
            <div id="loginform">
                <form action="?go=login" method="post">
                    <table align="center">
                        <tr>
                            <td><font size="2">Username</font></td>
                            <td><input type="text" name="username" /></td>
                        </tr>
                        <tr>
                            <td><font size="2">Password</font></td>
                            <td><input type="password" name="password" /></td>
                        </tr>
                        <tr>
                            <td colspan="2" align="center"><input type="submit" value="Login" /></td>
                        </tr>
                    </table>
                </form>
                </div>               
          <?php
      }   
    }
?>

Just looking for an "best practice" i tried google for it but i couldnt get to an straight awnser any enlightment is appreciated.

Hi!

I need help understanding how to access resource files using ResourceBundle Class and what should be ResourceBundle file format.

I have an example of usage in the form of:

$r = ResourceBundle::create( 'en', $fileName);

but what is the correct format of Resource file?

Can it be a format of property file in the form of
key=value
key=value?

or can it be a .txt file of format?:

root:table {
  myName:string { "Here goes my name" }
}


Can someone share a very simple example of ready to use Resource file with a plain text in it?

Thank you!

I've been spending long hours learning about classes and their magic methods. I just came across a tutorial which showed a constructor like this:

class Device {
    //...
    public function  __construct(Battery $battery, $name) {
        // $battery can only be a valid Battery object
        $this->battery = $battery;
        $this->name = $name;
        // connect to the network
        $this->connect();
    }
    //...
}

the Battery part instantly caught my attention. Here had previously made a Battery class (and a more complete Device class) but the next thing he did really caught my interest:

$device = new Device(new Battery(), 'iMagic');
// iMagic connected
echo $device->name;
// iMagic

what the hell is going on here? Is this another way to include the methods and properties of one class into another class, in order words is this the same thing as:

class Device extends Battery

I don't think so because this new Battery() thing looks more like its creating an object inside the Device object. Previously the only way I could to that was to type $battery = new Battery() inside one of my methods. But this looks like hes doing something different. Can anyone explain whats going on here?   The whole tutorial is he http://code.tutsplus...-php--net-13085 in the main Device method he has a premade $battery variable to hold the Battery object. Sometimes I have multiple classes containing functions which I'd like to include in my main class. I can only extend one class, so I usually extent a class containing only properties, no methods. I still don't know what difference making that info class abstract is, I'd appreciate if anyone could tell me.   Also I'd love to know what the point in static methods is. I've never used them because I've never seen the point. Is it just to make it easier to call the methods because you don't need to create an object instance to call them? Sorry for the extra questions, the first one is what I'm really wondering about.    

I'm having a problem with (what I'm almost certain is) variable scope, maybe you can help...

So I've got a parent class that, among other things, gets the name of the filepath, explodes this filepath, checks for files with names that mirror that filepath (without the slashes of course), and includes them if they exist:



class ParentClass {

  public $RootFolder;
  public $PageSections;

  function __construct() {
global $root_folder;
$this->RootFolder = $root_folder;
//get all directory names...
$cleanse = $this->RootFolder;
$pagepath = str_replace($cleanse, '', dirname($_SERVER['PHP_SELF']));
$this->PageSections = explode('/', $pagepath);
  }

  function RequireIfExists ($sections, $root_folder, $file_name, $file_type) {
foreach ($sections as $i){
if (isset($o)) {
$i = $o."/".$i;
}
$file = $root_folder.$i."/".$file_name.$file_type;
if (file_exists($_SERVER['DOCUMENT_ROOT'].$file)) {
require ($_SERVER['DOCUMENT_ROOT'].$file);
echo "<!--".$file." included -->"; //temporary measure to ensure that the file is at least being called.
}
$o = $i;
}
  }
// so, excuting the function
// $this->RequireIfExists($this->PageSections, $this->RootFolder, "sectionvars", ".php");
// on some/sub/folder/index.php
// will look for somesectionvars.php, somesubsecitonvars.php & somesubfoldersectionvars.php
// and include whichever ones exist.
}

Then there is a child class that utilizes this function, and successfully requires the file. I know the file is coming through because the echo statement on the page shows up in the code, but I cannot get the variables to pass through?


<?php
class HtmlHead extends PageBlock{
public $PageKeywords;
public $PageDescription;
public $PageStyles;
public $PageScripts;
//------------------------
public $SectionKeywords;
public $SectionDescription;
//------------------------
public $SiteKeywords;
public $SiteDescription;
public $SiteStyles;
public $SiteScripts;
//------------------------
public $CatchAll;

  function __construct() {
parent::__construct();
//$this->RequireIfExists($this->PageSections, $this->RootFolder, "sectionvars", ".php");  //I have tried calling the function here with no luck
global $site_description, $site_keywords, $section_description, $section_keywords, $xyz; //also made sure to global the variables from the required page
$this->SiteDescription = $site_description;
$this->SiteKeywords = $site_keywords;
$this->SectionDescription = $section_description;
$this->SectionKeywords = $section_keywords;
$this->PageDescription = $page_description;
$this->PageKeywords = $page_keywords;
  }

function Constructor() {
$this->RequireIfExists($this->PageSections, $this->RootFolder, "sectionvars", ".php"); //Tried calling the function here as well, no luck
global $xyz; //global'd the var i want
echo "\n<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />";
echo "\n<!--Sec Keywords are".$xyz."-->"; //Tried to echo the var...
//------------------------Rest of code...
}
}


And here is the page that is being required...


<?php
echo "<!-- 1234 1234 1234 1234 -->"; //test measure to see if/where file is including
$section_keywords = "red, secondary";
$section_description = "this is the red section description";
$xyz = "1234"; //test Var to see if there was a naming conflict with the above two..
?>


What am I overlooking this time?   

Hey guys, im uploading up to 48 PNG images from one page, this works fine when theres only a few images, but doesnt work the more there are. Is there any reason for this?

Is it to do with php.ini or is that per file, not for the whole upload?

Thanks.
Danny.

hi,
i have a class file that have all values from a database fields.
for example:


 class mospedidos extends mosDBTable {
id = null;
date =null;
}

 class mosunder extends mosDBTable {
id = null;
name =null;
}

each time i creat a new field in the database i need add the same field in the
class file, what i want is a way using  php to add that new field to the class file.
i just need a way to open the file and the class name that i give and add the value
and save the file.
how can i do this?
thanks for your help

I am trying to convert 6 files into a single 1 php file. I have attached the original files. I need help because I don't know where I am going wrong. this what I have done so far :

<?php session_start();
if ($_SESSION['ON'] =="FALSE" || $_SESSION['ON']==null) {
  header( 'Location: index.php?error=invalid-login' );
  session_unset();
  session_destroy();
  exit();
}
?>

<html><head><meta http-equiv="content-type" content="text/html; charset=iso-8859-1">

<title>LOGIN WEB SESSION</title>
<link rel="stylesheet" type="text/css" href="loginsession.css" />
</head>
<body>



<?php
         // If the step is one, show the correct form //


      if ($step == 0)
      {

         echo '<form action="index.php?step=2" method="post">
         <table>
         <tr><td width="100">Username:</td><td width="200"><input type="text" name="username"></td></tr>
         <tr><td width="100">Password:</td><td width="200"><input type="password" name="password"></td></tr>
         <tr><td colspan="2" align="center"><input type="submit" value="Login"></td></tr>
         </table>
         </form>';
      }

      else
      if ($step == 1)
      { // Create the step 2 section of the page //

         function clean($data)
         {
             $data = trim($data);
             $data = stripslashes($data);
             $data = htmlspecialchars($data);
             return $data;
         }

         $user = clean($_POST['username']);
         $pass = clean($_POST['password']);

         if ($user == "webdeveloper" && $pass == "master")
         {
           session_start();
           $_SESSION['username'] = $user;
           $_SESSION['password'] = $pass;
           $_SESSION['ON']="TRUE";
           $lifetime=600;
           setcookie(session_name(),session_id(),time()+$lifetime);
           header( 'Location: index.php?step=2' ) ;
           exit();
         }
         else
         {
            header( 'Location: index.php' );

            session_destroy();
            exit();
         }

      }

      else
      if ($step == 2)
      <div>LOGIN WELCOME</div>
         <div>
         HERE IS YOUR USER DATA:<br />
         <label class="data">username:';
         <?php echo $_SESSION['username'] ?>
         <br>
         password: <?php echo $_SESSION['password'] ?>
         <br></label>
         HERE IS YOUR SESSION DATA:<br />
         <label class="data">
         <?php echo (session_name().": ".session_id()) ?><br>
         <?php echo ("SESSION DATA: ".session_encode() )?>
         </label>
         </div>index.php?step=3">Logoff</a></div>
      }

      else
      if ($step == 3)
      { // Create the step 4 section of the page //
         header( 'Location: index.php' );
         session_start();
         session_unset();
         session_destroy();
         exit();
      }


?>

</body>
</html>

I have looked around all overr, but cant find what im looking for. Everything I have found is about uploading multile files, what I need to do is upload one file and copy it so there is 3 files.

Here is an example of what I need to accomplish.

Upload file picture1.jpg

From picture1.jpg create 3 files - smallimage_picture1.jpg, largeimage_picture1.jpg & smallimage_picture1_thumb.jpg

Each file will need to be copied to a /products directory and also an entry for each file name placed in mysql database table.

I don't think this is as simple as it sounds to do in PHP, but i am very willing to learn so if anyone knows of a good tutorial that get get me started that would be super.

regards

DB

Hi Gusy,
Would be great if you can help me to sort this out and Thank you in advance.

I would like to hide all files with "swf" extension from my file and folder directory,
I know how to hide one specific file but not ll files with same extension. For example: *.swf.

Here is my code which is work for full file names but not all files with same extension.

<?php
$filearray = array();
if ($handle = opendir('.')) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != ".." && $file != ".htaccess" && $file != "index.php" && $file != "style.css" && $file != "Images" && $file != "*.swf" && $file != "index.html") {
$filearray[] = $file;
}
}
closedir($handle);
natcasesort($filearray);
foreach($filearray as $f) {
$thelist .= '<img width="15" height="15" alt="[DIR]" src="/Images/folder.jpg"> <a href="'.$f.'">'.$f.'</a>
';
}
}
?>

As you can see I have "&& $file != "*.swf"" which need your advise in this part.

I just want people not seeing all .SWF files in the index directory of my server.
I have already have index.html inside my folder as well which has been hided because of "$file != "index.html"". But this is not hiding my ".SWF" files.

Many Thanks.

Hello,
In m script, I need to get the content of another php file as a string, including the content of all the files which are included in it and in lower levels.
Any idea how to do it?
I tried output buffer+include but it doesn't get the content of the included files.

Thanks