PHP 4 - variables inside class

Question

I have a class like

class blah extends blahblah{

  private $variable = '5';

  function somefunction(){
    echo $variable;
  }
}

this works in php 5, but not in php 4. I get a error:

Parse error: parse error, unexpected
T_VARIABLE, expecting T_OLD_FUNCTION
or T_FUNCTION or T_VA....

I also tried with public and static. Same error.

How can I add a variable inside that class that I can access from all class functions?

The *most important question* is, why do you still care about PHP4? — netcoder, Jan 19 '11 at 23:52
Please upgrade to modern PHP version, PHP 4 is dead for 2.5 years now. Let it rest in peace. — StasM, Jan 19 '11 at 23:53
I don't, but the application that has this function won't run only on my site — Alex, Jan 19 '11 at 23:53
So? Then make a requirement, *needs PHP5*. This is only fair these days. PHP4 is indeed dead, most servers will run PHP5. And if not: Not your problem! — Felix Kling, Jan 19 '11 at 23:55

Felix Kling · Answer 1 · 2011-01-19T23:57:45.373

8

In PHP4, member variables are declared with var:

var $variable = '5';

But you still have to access it via $this->variable in your function ~~(I think, I'm not so familiar with PHP4)~~.

That said, if possible, upgrade! PHP4 and "OOP" is more pain than fun.

Update: Ha, found it, some documentation about Classes and Objects in PHP4.

edited Jan 19 '11 at 23:57

answered Jan 19 '11 at 23:45

Felix Kling

+1 But, I'm not really sure PHP4's "OOP" can be called OOP, it's more like structs than OOP really. ;) – netcoder Jan 19 '11 at 23:54
@netcoder: True... in the documentation they say *Classes and Objects*... not mentioning OOP either ;D – Felix Kling Jan 19 '11 at 23:56

score 8 · Accepted Answer · answered Jan 19 '11 at 23:46

8

private is not a valid keyword in PHP 4 change it to var $variable = '5'; also the function is wrong it should be...

class blah extends blahblah{

  var $variable = '5';

  function somefunction(){
    echo $this->variable;
  }
}

answered Jan 19 '11 at 23:46

DeveloperChris

2 Answers2