Re: comparing two texts

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Robert Cummings wrote:
On Sun, 2005-06-19 at 09:22, M. Sokolewicz wrote:

jenny mathew wrote:

Untested, very crude:

<?php
$maxlen = max(strlen($text1), strlen($text2));
for ($i = 0; $i < $maxlen; $i++){
if (@$text1[$i] == @$text2[$i]) echo @$text1[$i];
else @echo "<font color=red>$text1[$i]|$text2[$i]</font>";
}
?>

donot you think you program will just bring the server to its foot ,if the text message encountered is very large of order of 40 KB or
larger.is<http://larger.is>there any other efficient method.


40KB isn't large... now, when you're talking about hundreds of MBs of text, then it gets large :) 40KB, with that method, is nothing...


It's a bit of a dirty hack though. If I compare a 2 character text
against a 40k text, the error handler will be invoked (39998 * 3)  times
if $text1 is the 2 byte string. That's extremely inefficient. I don't
think I've ever seen error suppression abused so badly to prevent
writing an extra line or 2 using isset().

Cheers,
Rob.
I agree with what you said fully; however, even though that's the case, and it indeed could be written a lot faster and cleaner, it would not pose a problem on most systems. That was the point I tried to make ;)

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