note 70876 added to language.oop5.decon
| From: | phaxius at osu1 dot php dot net | Date: | Thu, 02 Nov 2006 05:23:31 +0000 |
| Subject: | note 70876 added to language.oop5.decon | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-119309@lists.php.net to get a copy of this message | ||
Hello, I've been messing with php for about a week but am learning a lot. It occurred to me
that it might be necessary in some cases to write a class that takes a variable number of arguments.
After some experimentation, this example was formed:
class variableArgs{
public $a = array();
protected $numOfArgs;
public function __construct()
{
$numOfArgs=func_num_args();
if(func_num_args()==0)
{
$numOfArgs=1;
$a[0]='No arguments passed';
$this->Arg[0]=$a[0];
}
else
for($i=0; $i<func_num_args(); $i++)
{
$a[$i]=func_get_arg($i);
$this->Arg[$i]=$a[$i];
}
}
public function showArgs()
{
echo 'showArgs() called <br />';
for ($i=0; $i<$numOfArgs; $i++)
{
echo '$i: ' . $i . '<br />';
echo $this->Arg[$i];
echo '<br />';
}
}
public function __destruct(){}
}
$test1 = new variableArgs;
$test2 = new variableArgs("arg1");
$test3 = new variableArgs("arg1", "arg2");
$test4 = new variableArgs("arg1", "arg2", "arg3");
$test1->showArgs();
$test2->showArgs();
$test3->showArgs();
$test4->showArgs();
This outputs the following:
showArgs() called
$i: 0
No arguments passed
showArgs() called
$i: 0
arg1
showArgs() called
$i: 0
arg1
$i: 1
arg2
showArgs() called
$i: 0
arg1
$i: 1
arg2
$i: 2
arg3
I have no idea how efficient this is, but it works at any rate. Hopefully this helps someone.
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