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Re: question about class getters [message #180737 is a reply to message #180736]

Fri, 15 March 2013 17:53

daveh
Messages: 18
Registered: March 2013

Karma:

Junior Member

On Mar 15, 1:11 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
> On 3/15/2013 11:42 AM, David Heller wrote:
>
>
>
>
>
>
>
>
>
>
>
>> Hello
>
>> I have the following code snippet:
>
>> Class myClass
>
>> {
>> public function makeArray()
>> {
>> $this->my_array = array('Mon', 'Tues', 'Wed', 'Thurs', 'Friday',
>> 'Sat', 'Sun');
>> }
>> pubic function getArray()
>> {
>> return $this->my_array;
>> }
>> }
>
>> and then do the following
>
>> var $MyVar = new myClass();
>> var $mydate = $MyVar->getArray[1];
>> echo $mydate;
>> => Mon
>> will this work? If not how to make it work?
>
>> Thanks,
>
>> Dave
>
> Not quite, for a couple of reasons. As Salvatore pointed out,
> getArray() is a function, not a variable, so you need to code it as a
> function. The other problem is you never called makeArray() and don't
> have a constructor, so $my_array doesn't exist (also it should be
> declared as a class variable).
>
> Something like this should works:
>
> class MyClass {
> private $my_array;
>
> public function __construct() { // Constructor
> $this->my_array = array('Mon', 'Tues', 'Wed', 'Thurs', 'Friday',
> 'Sat', 'Sun');
> }
> public function getArray($i) {
> if ($i >= 0 && $i < count($this->my_array)) // Verify index
> return $this->my_array[$i];
> else
> return null; // Out of range
> }
>
> }
>
> $myVar = new MyClass();
> $mydate = $myVar->getArray(1); // Pass index as an argument
> echo $mydate;
>
> => Tues
>
> (PHP array indexes start with zero, not one).
>
> --
> ==================
> Remove the "x" from my email address
> Jerry Stuckle
> JDS Computer Training Corp.
> jstuck...@attglobal.net
> ==================

Even better:

class MyClass {
private $my_array;

public function __construct() { // Constructor
$this->my_array = array('Mon', 'Tues', 'Wed', 'Thurs', 'Friday',
'Sat', 'Sun');
}
public function __get($i) {
// if ($i >= 0 && $i < count($this->my_array)) // Verify index
if(array_key_exists($i, $this->my_array)){ // For keys
that are non-numerical
return $this->my_array[$i];}
else
return null; // Out of range or non-existant
}

}

I get it now (no pun intended).

Dave

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[Message index]

		question about class getters By: daveh on Fri, 15 March 2013 15:42
		Re: question about class getters By: Salvatore on Fri, 15 March 2013 16:12
		Re: question about class getters By: daveh on Fri, 15 March 2013 16:48
		Re: question about class getters By: M. Strobel on Sat, 16 March 2013 11:06
		Re: question about class getters By: Jerry Stuckle on Fri, 15 March 2013 17:11
		Re: question about class getters By: daveh on Fri, 15 March 2013 17:53
		Re: question about class getters By: Jerry Stuckle on Fri, 15 March 2013 18:56
		Re: question about class getters By: Curtis Dyer on Thu, 21 March 2013 09:31
		Re: question about class getters By: Jerry Stuckle on Thu, 21 March 2013 12:55
		Re: question about class getters By: Christoph Becker on Thu, 21 March 2013 13:12
		Re: question about class getters By: Curtis Dyer on Sat, 23 March 2013 07:14
		Re: question about class getters By: Jerry Stuckle on Sat, 23 March 2013 12:46

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