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@NogDogMar 29.2012 — #You cannot call a function/method to assign a default value.
http://www.php.net/manual/en/language.oop5.properties.php
You can, however, move the initialization to the __construct() method, so that the property gets initialized before any other methods are called.@NogDogMar 30.2012 — #This is "legal":
This is not:
I typically work around it this way:
Parse error in a database class
[code=php] protected function checkLocation() //check if we’re on my computer or the server
{
if (str_replace(‘xampp’, ”, $_SERVER[‘SCRIPT_FILENAME’]) != $_SERVER[‘SCRIPT_FILENAME’])
{
return ‘host111.hostmonster.com’;
}
else
{
return ‘localhost’;
}
}
private $db_host = $this->checkLocation(); // Database Host
private $db_user = ‘myusername’; // Username
private $db_pass = ‘mypass’; // Password
private $db_name = ‘mydbname’; // Database
I’m getting this error: [I]PHP Parse error: syntax error, unexpected T_VARIABLE in /home2/myuniverse/public_html/site/alpha/Dogs.class.php on line 27
Line 27 is:
[code=php]private $db_host = $this->checkLocation(); // Database Host
For testing purposes, I did the following to the checkLocation() function, and it did not help:
[code=php]protected function checkLocation()
{
return ‘localhost’;
}
For testing purposes I also did the following, and the parse error DID go away:
[code=php]private $db_host = ‘localhost’; // Database Host
So, what I want to know is, how can I get the parse error to go away, but still get to use my checkLocation() function to determine the path to the database?
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@NogDogMar 29.2012 — #You cannot call a function/method to assign a default value.This declaration may include an initialization, but this initialization must be a constant value--that is, it must be able to be evaluated at compile time and must not depend on run-time information in order to be evaluated. [/quote]
You can, however, move the initialization to the __construct() method, so that the property gets initialized before any other methods are called.
0
@NogDogMar 30.2012 — #This is "legal":[code=php]
class Foo
{
private $bar = 'some value';
}
[/code]This is not:
[code=php]
class Foo
{
private $bar = any_function_you_can_think_of();
}
[/code]I typically work around it this way:
[code=php]
class Foo
{
private $bar;
public function __construct()
{
$this->bar = $this->some_function();
}
private function some_function()
{
return 'some value';
}
}
[/code]