Timing Error

[sane993]

This is a section from a webpage I've made:

<?php
	echo "<img src='picture.php?spray=".$spray."' style='display:none'>";
?>
<?php
	if (file_exists("wallwithtext.png"))
	{
		echo "<img src='wallwithtext.png'>";
	}
	else
	{
		echo "<img src='wall.png'>";
	}
?>

picture.php outputs the results to the file "wallwithtext.png" as wanted, except the line echo "<img src='wallwithtext.png'>"; executes before picture.php finishes updating the file and hence the file displayed is always "outdated". I've tried sleep, usleep and a for next loop counting up to 10000 incrementing by .5 and to slow the loading down but they don't work...

Any suggestions, Thanks.

[onyx]

Well from reading the documentation the only thing that I can see it being it the file being cached. No idea if this is the case as I have never had the problem or come across it before.

Have a look at:

http://uk2.php.net/manual/en/function.clearstatcache.php

It would be good if you could post the answer once you have solved it. I for one would be rather interested in seeing what it is 🙂