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Optimized a bit.

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This commit is contained in:
Loïc Chapeaux
2002-03-30 08:24:04 +00:00
parent 68cc8f059f
commit d1e484b312
1 changed files with 16 additions and 33 deletions
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49
libraries/zip.lib.php3
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@@ -53,46 +53,29 @@ class zipfile
/**
* Converts the date y/n/d and time h:m:s to a four byte DOS date and time
* format (date in high two bytes, time in low two bytes allowing magnitude
* comparison).
* Converts an Unix timestamp to a four byte DOS date and time format (date
* in high two bytes, time in low two bytes allowing magnitude comparison).
*
* @param integer the current year
* @param integer the current month
* @param integer the current day
* @param integer the current hour
* @param integer the current minut
* @param integer the current second
* @param integer the current Unix timestamp
*
* @return integer the current date in a four byte DOS format
*
* @access public
*/
function dosTime($year, $month, $day, $hour, $minute, $second) {
return ($year < 1980)
? dosTime(1980, 1, 1, 0, 0, 0)
: (($year - 1980) << 25) | ($month << 21) | ($day << 16) |
($hour << 11) | ($minute << 5) | ($second >> 1);
} // end of the 'dosTime()' method
/**
* Returns the Unix time $unixtime in DOS format, rounded up to the next
* two second boundary.
*
* @param integer the current timestamp
*
* @return integer the current date in a four byte DOS format
*
* @access public
*
* @see DOSTime()
* @access private
*/
function unix2DosTime($unixtime = 0) {
$timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);
return $this->dosTime($timearray['year'], $timearray['mon'], $timearray['mday'],
$timearray['hours'], $timearray['minutes'], $timearray['seconds']);
if ($timearray['year'] < 1980) {
$timearray['year'] = 1980;
$timearray['mon'] = 1;
$timearray['mday'] = 1;
$timearray['hours'] = 0;
$timearray['minutes'] = 0;
$timearray['seconds'] = 0;
} // end if
return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
} // end of the 'unix2DosTime()' method
@@ -109,7 +92,7 @@ class zipfile
{
$name = str_replace('\\', '/', $name);
$dtime = dechex ($this->unix2DosTime($time));
$dtime = dechex($this->unix2DosTime($time));
$hexdtime = '\x' . $dtime[6] . $dtime[7]
. '\x' . $dtime[4] . $dtime[5]
. '\x' . $dtime[2] . $dtime[3]