PHP recursive function

Hi all, I need a PHP script that checks the creation date of a file each 5 seconds, if creation date is changed it reload the page via javascript
I' ve tried with:

function verificaData($dataCreazione)
{
flush();
sleep(5);
flush();
$datacreTemp= filectime('SiSeFi/SiSeFi.png');
if ($dataCreazione==$datacreTemp)
{
verificaData($datacreTemp);
}
else
{
echo'<script>window.location.reload();</script>' ;
}
}
I just call the function after the <body> tag.
Why it doesn't work?
What wrong with this?

Thanks.

Feb 5 '08 #1

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3390

MarkoKlacar

296

Expert 100+

Hi,

I fail to see why this funtion has to be recursive, if the page that's calling this function is to be open constantly you could probably just to with a loop of some sort.

I don't know the context or the use of you php file, but perhaps you could look at the filemtime function.

Hope this helps..

Feb 6 '08 #2

Ciri

Hi,

I fail to see why this funtion has to be recursive, if the page that's calling this function is to be open constantly you could probably just to with a loop of some sort.

I don't know the context or the use of you php file, but perhaps you could look at the filemtime function.

Hope this helps..

Ok, thanks. I've tried your way:
<?
$creationTime=filemtime('myPicture.png')
while(true)
{
flush();
sleep(5);
if ($creationTime!=filemtime('myPicture.png')
{
echo'<script language=javascript> window.location.reload();</script>';
}

}
?>

It seems to work only for one user per time.
If I open only one instance of the browser it's perfect but if I open a second window on the same page both apps stops working and freeze the browser!
Any suggestion?

Thanks.

Feb 6 '08 #3

MarkoKlacar

296

Expert 100+

Hi,

What happens if you remove flush()?

Feb 6 '08 #4

Ciri

I've tried removing the flush(): the page never loads.
This is the complete code of the page:

<html>
<head>
</head>
<body>
<img src="SiSeFi/SiSeFi.png" style="background-image:url(SiSeFi/SiSeFi_bckgrd.jpeg)" alt=""/>

<?
$dataCreazione=filectime('SiSeFi/SiSeFi.png');
while ($dataCreazione==filectime('SiSeFi/SiSeFi.png'))
{
sleep(5);
}

?>

</body>
</html>

Could you help me please understaing why it doesn't work?

Thank you all guys.

Feb 6 '08 #5

MarkoKlacar

296

Expert 100+

Hi,

Don't know if this solves you problem but you while statement looks different now(the names are wrong i know..)
[PHP]if ($creationTime==filemtime('myPicture.png')[/PHP]
you use to have
[PHP]if ($creationTime!=filemtime('myPicture.png')[/PHP]

perhaps you need to look at that...

Get back to us if you need more help, maybe I can provide you with an alternative solution if it'a an option for you...

Good Luck..

Feb 7 '08 #6

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