M. Sokolewicz wrote:
To summarize:
<?php class Liste {
var $input2; var $input;
function Liste() { /* or, if you're using php5: public function __construct() { */ $this->input = array(1,2,3); $this->input2 = array_pad($this->input,10,1); } }
The reason being, for this, that inside a class property definition, only static values are allowed. This has to do with the Static use of a class. Imagine the following (PHP 4):
--- PHP 4 ---
class foo {
var $a = 2;
var $b = 5;
}
--- end ---
or
--- PHP 5 ---
class foo {
public $a = 2;
public $b = 5;
}
--- end ---
Now, when someone uses it statically, he/she can call them like: --- echo foo::a;
This is not entirely accurate.
<?php
class foo {
public $a = 2;
public $b = 5;
}
echo foo::a;results in:
Fatal error: Undefined class constant 'a' in PHPDocument1 on line 7
<?php
class foo {
public $a = 2;
public $b = 5;
}
echo foo::$a;results in:
Fatal Error: Access to undeclared static property: foo::$a in PHPDocument1 on line 7
<?php
class foo {
static $a = 2;
public $b = 5;
}
echo foo::$a;results in:
2
The reasoning behind not allowing complex expressions in variable declarations is that they must be evaluated at compile time, *before* any functions, classes, or other complex structures have been parsed and therefore created, otherwise php would be either incredibly unstable or much slower.
Greg
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