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# dervan : Orkan, what is wrong in the use of pointers? Well, all Im saying - it is not a procedural approach. It should be avoided, like GOTO command in C++, it only makes the code more difficult to read. From the other hand, what if I wanna use footer hook to set metas? see, its not perfect anyway... I really like the output buffering feature implemented in PHP - it seems to be perfect solution here IMO. You can have nesting buffers for all three parts: header, body and footer.. and hook them separately. <?PHP
$counter = 0;
function callback_header($header)
{
global $counter;
return (++$counter).' - callback_header(), content: '.$header.'<br>';
}
function callback_body($body)
{
global $counter;
return (++$counter).' - callback_body(), content: '.$body.'<br>';
}
function callback_footer($footer)
{
global $counter;
return (++$counter).' - callback_footer(), content: '.$footer.'<br>';
}
ob_start('callback_header');
echo 'echo_1_header<br>';
ob_start('callback_body');
echo 'echo_2_body<br>';
ob_start('callback_footer');
echo 'echo_3_footer<br>';
while(@ob_end_flush());
?>and this will output: 3 - callback_header(), content: echo_1_header 2 - callback_body(), content: echo_2_body 1 - callback_footer(), content: echo_3_footer see? the callback_header() is processed by ob_end_flush() last, but it is sent to the browser as first  Also, to get rid of additional hook include()'s - which is a waste, one can define (in the core) three global arrays for preg_replace() to use in these callbacks accordingly. Perl - the only language that looks the same before and after RSA encryption.
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Dieser Beitrag wurde von Orkan (am 25. Februar 2009, 16:53, vor 16 Jahre) bearbeitet |
