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Re: Order/Timing of Execution of PHP

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Message-ID <7115120.c4VAs2iPgL@PointedEars.de> (permalink)
From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To Thomas 'PointedEars' Lahn <php@PointedEars.de>
Organization PointedEars Software (PES)
Date Mon, 28 Nov 2011 01:53:51 +0100
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Subject Re: Order/Timing of Execution of PHP
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Denis McMahon wrote:

> On Sun, 27 Nov 2011 12:01:47 +0000, Jeff Gaines wrote:
>> It works but doesn't echo 'Creating Thumbnails' etc. until it has called
>> the function and returned from it.
> 
> Possibly caused by buffering on the server, or even the client waiting to
> render output until it's able to decide what is to be rendered and how?
> 
> I think it's better to do all the processing first, and then send the web
> page afterwards, rather then send html in dribs and drabs while you're
> doing the processing. This isn't the way I used to think, but it has
> advantages. For example, you can trap and react to errors in the
> processing by issuing http error headers, which you can't do if you've
> started output.

The disadvantage of it is that the user would have to wait for all PHP 
processing to finish before seeing any content.  I have recently heard of an 
approach to mitigate, even solve, this problem, but I do not remember how it 
worked.


PointedEars
-- 
> If you get a bunch of authors […] that state the same "best practices"
> in any programming language, then you can bet who is wrong or right...
Not with javascript. Nonsense propagates like wildfire in this field.
  -- Richard Cornford, comp.lang.javascript, 2011-11-14

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Thread

Order/Timing of Execution of PHP "Jeff Gaines" <jgaines_newsid@yahoo.co.uk> - 2011-11-27 12:01 +0000
  Re: Order/Timing of Execution of PHP Denis McMahon <denismfmcmahon@gmail.com> - 2011-11-27 14:14 +0000
    Re: Order/Timing of Execution of PHP Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-11-28 01:53 +0100
  Re: Order/Timing of Execution of PHP Jerry Stuckle <jstucklex@attglobal.net> - 2011-11-27 09:43 -0500
    Re: Order/Timing of Execution of PHP "Jeff Gaines" <jgaines_newsid@yahoo.co.uk> - 2011-11-28 11:07 +0000

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