Re: Flow of PHP testClass
| From: | tamouse mailing lists | Date: | Thu, 29 Mar 2012 18:33:06 +0000 |
| Subject: | Re: Flow of PHP testClass | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-317349@lists.php.net to get a copy of this message | ||
On Thu, Mar 29, 2012 at 1:30 PM, tamouse mailing lists
<tamouse.lists@gmail.com> wrote:
> On Thu, Mar 29, 2012 at 1:17 PM, tamouse mailing lists
> <tamouse.lists@gmail.com> wrote:
>> On Thu, Mar 29, 2012 at 9:57 AM, Rikin Parekh <rikin08@gmail.com> wrote:
>>> Hi Guys,
>>>
>>> Given below is a PHP script. Can someone help me with the output of the
>>> code. According to my understanding the output should be 3, 50, 20, 10. Can
>>> someone elaborate on the same and provide me an explanation on the flow?
>>>
>>> Thanks a lot in advance.
>>>
>>> <?php
>>> class TestClass {
>>> var $a =20;
>>> var $b =10;
>>> function TestClass($a= null, $b=null) {
>>> if (!is_null($a))
>>> {
>>> $this-‐>a= $a;
>>> }
>>> if(!is_null($b))
>>> {
>>> $this-‐>b=$b;
>>> }
>>> }
>>>
>>> function printAB() {
>>> echo $this-‐>a.” “.$this-‐>b.”\n”;
>>> }
>>> }
>>>
>>> $inst1 = new TestClass(3,50);
>>> $inst2 = new TestClass();
>>> $inst1-‐>printAB();
>>> $inst2-‐>printAB();
>>> ?>
>>
>> It'd be great if you provided the output you are getting.
>
> After cleaning up the code (I think the mail system might have stuck
> in some weird characters, this is what I got:
>
>
> <?php
> error_reporting(-1);
> ini_set('display_errors',true);
> ini_set('display_startup_errors',true);
>
> class TestClass {
> public $a=20;
> public $b=10;
> public function TestClass($a= null, $b=null) {
> if (!is_null($a))
> {
> $this->a = $a;
> }
> if(!is_null($b))
> {
> $this->b=$b;
> }
> }
>
> public function printAB() {
> echo $this->a." ".$this->b."\n";
> }
> }
>
> $inst1 = new TestClass(3,50);
> $inst2 = new TestClass();
> $inst1->printAB();
> $inst2->printAB();
> ?>
>
> Outputs:
>
> 3 50 20 10
>
> as you expect. What is the question?
Crap, I didn't mean to send that. This is the actual code:
<?php
error_reporting(-1);
ini_set('display_errors',true);
ini_set('display_startup_errors',true);
class TestClass {
var $a=20;
var $b=10;
function TestClass($a= null, $b=null) {
if (!is_null($a))
{
$this->a = $a;
}
if(!is_null($b))
{
$this->b=$b;
}
}
function printAB() {
echo $this->a." ".$this->b."\n";
}
}
$inst1 = new TestClass(3,50);
$inst2 = new TestClass();
$inst1->printAB();
$inst2->printAB();
?>