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Posted by Ruben Rubio Rey on 10/20/65 11:29
Richard Lynch wrote:
>On Fri, October 14, 2005 6:29 am, Ruben Rubio Rey wrote:
>
>
>> if(file_exists($filename)){
>> $modified_date=filemtime($filename);
>> if(time()<($modified_date+1 * 24 * 60 * 60)){
>> $handle = fopen($filename, "r");
>> $contents = fread($handle, filesize($filename));
>> fclose($handle);
>> echo $contents;
>> }
>> }
>>
>>
>
>Checking both file_exists and then doing fopen seems a bit silly.
>
>Trap the error from fopen, and just use that as your file_exists test.
>
>I suspect http://php.net/file_get_contents will be SLIGHTLY faster
>than doing all of this code, though:
>
>if (filemtime($filename) > time()) $contents =
>@file_get_contents($filename);
>if ($contents === false){
> //error-handling code
>}
>else{
> echo $contents;
>}
>
>Then, of course, we have to wonder if you NEED $contents for later use
>in the script.
>
>If not, something like this will clock in better:
>
>$bytes = @readfile($filename);
>if ($bytes === false){
> //error-handling code
>}
>
>
>
This seems to be the best solution. I do not need $content anymore. I ll
post results. :)
>The difference here is that you don't even stuff the file into the PHP
>string. It's all read and passed out to stdout in low-level internal
>PHP C code, and the data never needs to hit "PHP" variables which are
>"more expensive" to setup and maintain.
>
>Note that which is REALLY fastest will probably depend on the size of
>the files, your OS system cache, your hardware, and maybe which
>version of PHP you are using, if the underlying functions changed.
>
>Must be nice to be worried about 0.0x milliseconds -- I'm fighting a
>mystery 3.0 seconds in a data feed for a search engine myself :-)
>
>
Search engine ... thats the most complicated!
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