note 85482 deleted from function.filesize by aidan
| From: | aidan@php.net | Date: | Wed, 15 Apr 2009 17:37:24 +0000 |
| Subject: | note 85482 deleted from function.filesize by aidan | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-153353@lists.php.net to get a copy of this message | ||
Note Submitter: d.abromeit
----
yes, this function is well known and great
- but if there are values <=0, then you'll get
"warning: division by zero ...".
happens if filesize() returns false on error.
so better use something like this:
<?php
function byte_convert($bytes)
{
$symbol = array('B', 'KiB', 'MiB', 'GiB',
'TiB', 'PiB', 'EiB', 'ZiB', 'YiB');
$exp = 0;
$converted_value = 0;
if( $bytes > 0 )
{
$exp = floor( log($bytes)/log(1024) );
$converted_value = ( $bytes/pow(1024,floor($exp)) );
}
return sprintf( '%.2f '.$symbol[$exp], $converted_value );
}
?>
it returns "0" in our problem cases. you may add "false" for backend-usage also.
;O)