Posted by Ramon on 06/14/06 08:53

Thanks Tony for your explanation,

but I don't think I understand your solution. The getOuterHTML method
expects no parameters. This is the error I get: "Call to a member function
on a non-object". Did you mean that I have to adjust the getOuterHTML method
in any way?

This is my code (in short):

<?

class TextBox {
var $m_sID;
var $m_sName;
var $m_sValue;

// Class Constructor:
function TextBox ($sID, $sName, $sValue) {
$this->m_sID = $sID;
$this->m_sName = $sName;
$this->m_sValue = $sValue;
}

function getID() {
return $this->m_sID;
}

function getOuterHTML () {
return "<input type='text' name='" . $this->m_sName . "' value=' .
$this->m_sValue . '>";
{

}

class HTMLForm {
var $m_oTextBoxes = array();

function addTextBox($oTextBox) {
$this->m_oTextBoxes[$oTextBox->getID()] = $oTextBox;
}

function getTextBoxByID ($sID) {
return ($this->m_oTextBoxes[$sID]);
}
}

$oTxtNumber = new TextBox ("Nr", "Number", "123");
$oForm->addTextBox ($oTxtNumber);

echo $oForm->getTextBoxByID("Nr")->getOuterHTML();

?>


"Tony Marston" <tony@NOSPAM.demon.co.uk> wrote in message
news:e6ogua$pti$1$8302bc10@news.demon.co.uk...
> What you are describing is not a subclass but a contained object. A
> subclass inherits from a superclass whereas you are instantiating an
> object from within another object. There is a difference.
>
> What you want is this...
>
> $oForm->getTextBoxByID->getOuterHTML("Number");
>
> --
> Tony Marston
> http://www.tonymarston.net
> http://www.radicore.org
>
>
> "Ramon" <itsramon@zonnet.nl> wrote in message
> news:448fc280$0$31637$e4fe514c@news.xs4all.nl...
>> Hello
>>
>> I'm new to OOP in PHP and I have this question:
>>
>> I have a class called "Form", which contains a collection of classes
>> (objects) called "Textbox".
>> Now I need to call the Textbox class's method "getOuterHTML()".
>>
>> In Visual Basic, you should do it like this:
>> oForm.getTextBoxByID("Number").getOuterHTML()
>>
>> In PHP I tried this: $oForm->getTextBoxByID("Number")->getOuterHTML();
>> But that doesn't work...
>>
>> Is there a way to do this in one statement? (I use PHP4).
>>
>>
>> Thanks in advance!
>> Ramon.
>>
>
>

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