You know what, I think Im explaining myself wrong.  The word truncate in
itself means I believe to cut at the bottom.  This isn't what I need.
Basically, its a chat script and all the newer messages are at the
bottom, and when the file reaches x bytes I want to 'cut off the head'
of the file by x lines. leaving the most current messages at the bottom
Ive been messing around with truncate all this time getting the wrong
results.  Why cant files be as easy as databases.... :)
If any one has a clue please point it to me.
Meantime, back to the manual.....

Sterling Hughes wrote:
 > On Fri, 7 Sep 2001, Gerard Samuel wrote:
 >>Can a file be truncated from the beginning, and by x amount of lines??
 >     Truncated from the beginning?  Do you mean truncate the file by X
 >     lines, starting from the first position in the file, well, yeah:
 >     <?php
 >     $fp = fopen("filename", "r+");
 >     // Start counting from 0, set to one, if you want to start counting
 >     // from 1
 >     $count = 0;
 >     while (!@feof($fp)) {
 >         // Not used, but unless your line lengths are longer than
 >         // 4K, this will effectively skip over a line
 >         $line = fgets($fp, 4096);
 >         if (++$count == $line_number_you_want) {
 >             ftruncate($fp, ftell($fp));
 >         }
 >     }
 >     fclose($fp);
 >     ?>
 >     Please note the above is devoid of error checking :)
 >     -Sterling

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