Class

nurulmajdi · #1 (**permalink**) 14-04-2004, 11:18 AM

aku try nak apply OOP dlm previous php projek aku... so, skang nih tgh meng'apply' la... aku just tiru je dlm buku.. tp kuar parse error... dah tiru sebijik sebijan dah... okeh aku paste kan aku punya code kat sini....

-------------------------------user.php----------------------------------------

<?php
//define class for tracking users
class User
{
//properties
public $name;
private $password, $lastLogin;

//methods
public function __construct($name, $password)
{
$this->name = $name;
$this->password = $password;
$this->lastLogin = time();
$this->accessess++;

}

function getlastLogin()
{
return (date("M d Y",$this->lastLogin));
}

}
//create an instance
$user = new User("Leon","sdf123");
//get the last login date
print($user->getlastLogin()."<br>\n");
//print the user's name
print ("$user->name<br>\n");

?>

--------------------------------Ouput---------------------------------------

Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in c:\phpdev\www\try oop\user.php on line 6

nurulmajdi · #2 (**permalink**) 14-04-2004, 12:06 PM

i put away 'public' and 'private' and it works as i want.. but can anyone tell me what exactly happen?

lcf · #3 (**permalink**) 14-04-2004, 12:51 PM

I am not sure where you copy the code. As far as I know, there are other ways to initial private, public and protected variable.

Quote:

All private variables and functions always start with underscore "_" followed by lowercase letters like var $_myvar;

All Protected variables and functions always start with "_T" followed by lowercase letters like var $_Tmyvar;

All Public variables and functions do not start with underscore "_" like var $myvar;

All variables and functions always start with lowercase letter (no uppercase) like var $_myvar; and NOT like var $_Myvar;

PHP Code:


			
class someabc {

        var $_conn;                     // Private variable

        var $_Tmyvar;                   // Protected variable

        var $connMYCONNECTION;          // Public variable

        var $connToDb;                  // Public variable

        var $myvar3;                    // Public variable

        var $myvarTHISTEST;             // Public variable



        function _foofunction() {}      // Private function

        function _Tfoofunction() {}     // Protected function

        function foofunction() {}       // Public function

}

Source: http://www.linuxdocs.org/HOWTOs/PHP-HOWTO-7.html

This explain why the script works after your removed "private", "public". Please note that, all variables in your script have become PUBLIC type.

zaimlah · #4 (**permalink**) 14-04-2004, 02:05 PM

actually php4 langsung tak ada support utk public, private or protected access. semua members dan methods automatically jadi public, no matter what.

tapi dalam php5, OOP features dia lagi lengkap, so public/private/protected access dah di-implement-kan, syntax dia exactly mcm yg pasted:

PHP Code:


			
public $name;

private $password, $lastLogin;

...

public function __construct($name, $password)

{ ... }

so that example must be a php5 example...

btw: php5 release candidate 1 is out!

lcf · #5 (**permalink**) 14-04-2004, 02:13 PM

ya, zaimlah is right. So, nurulmajdi stick with the example I given or upgrade to PHP5.

nurulmajdi · #6 (**permalink**) 14-04-2004, 02:55 PM

hmm.... i got this from a book which fully revised for php 5. I want to upgrade since i know php 5 RC is released, but i'm using phpdev 423 and it using php 4.2.3 and i don't know which file to altered.

lcf · #7 (**permalink**) 14-04-2004, 04:33 PM

if you use phpdev 423(php 4.2.3) then you cannot use the PHP5 coding. you may either upgrade your PHP version or stick with 4.2.3(do not use the private, public, protected).

nurulmajdi · #8 (**permalink**) 14-04-2004, 05:19 PM

okeh lcf.. bertindak mengikut arahan!

hymns · #9 (**permalink**) 14-04-2004, 11:19 PM

heh upgrade lah...
clean install satu per satu...

lcf · #10 (**permalink**) 14-04-2004, 11:36 PM

if you code in PHP5 but your webser use PHP4 then headache lah~

Since PHP5 is not final release yet, it is advice not to use it for development purposes.

hymns · #11 (**permalink**) 15-04-2004, 12:03 AM

ya ya

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