note 113715 deleted from function.md5-file by sobak
| From: | sobak@php.net | Date: | Thu, 17 Nov 2016 06:27:22 +0000 |
| Subject: | note 113715 deleted from function.md5-file by sobak | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-207128@lists.php.net to get a copy of this message | ||
Note Submitter: tommuhler at yahoo dot com
----
Sorry for voting Chris's code down.
It is great, but there are some brackets missing. If you add more complex conditions than just a
mere echo in the top IF ... ELSE structure please include the curly braces ... otherwise php will
choke.
<?php
define('READ_LEN', 4096);
if(files_identical('file1.txt', 'file2.txt')) {
echo 'files identical';
} else {
echo 'files not identical';
}
// pass two file names
// returns TRUE if files are the same, FALSE otherwise
function files_identical($fn1, $fn2) {
if(filetype($fn1) !== filetype($fn2))
return FALSE;
if(filesize($fn1) !== filesize($fn2))
return FALSE;
if(!$fp1 = fopen($fn1, 'rb'))
return FALSE;
if(!$fp2 = fopen($fn2, 'rb')) {
fclose($fp1);
return FALSE;
}
$same = TRUE;
while (!feof($fp1) and !feof($fp2))
if(fread($fp1, READ_LEN) !== fread($fp2, READ_LEN)) {
$same = FALSE;
break;
}
if(feof($fp1) !== feof($fp2))
$same = FALSE;
fclose($fp1);
fclose($fp2);
return $same;
}
?>