[SOLVED] usage of __DIR_

usage of __DIR__ in a class

I'm writing a very simple PHP application that returns the path of the file with a slight modification.

this is my code:

<?php
class abc {

 private $path = __DIR__ . DIRECTORY_SEPARATOR. 'moshe' . DIRECTORY_SEPARATOR;

 function doPath() {
 echo $this->path;
 }

}


$a = new abc();
$a->doPath();

I get the error:

PHP Parse error:  syntax error, unexpected '.', expecting ',' or ';' in /mnt/storage/home/ufk/1.php on line 4

Parse error: syntax error, unexpected '.', expecting ',' or ';' in /mnt/storage/home/ufk/1.php on line 4

for some reason I cannot add connect __DIR__ using '.' to another string. what am I missing?

using PHP 5.5.13.

Solution

Prior to the introduction of constant scalar expressions in PHP 5.6, you could not define class properties dynamically. This example is now valid on modern PHP versions.

    private $a = 5 + 4;  // evaluated, wont work before PHP 5.6
    private $a = 9;      // works, because static value

Your solution:

class abs
{
    private $path;

    public function __construct()
    {
        $this->path = __DIR__ . DIRECTORY_SEPARATOR . "moshe" . DIRECTORY_SEPARATOR;
    }
}