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MDL-39524 setuplib: Improve get_real_size() performance and readability

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This commit is contained in:
Jonathan Champ 2016-03-02 23:33:15 -05:00
parent 03b8b55f10
commit ddf98ccac3
1 changed files with 15 additions and 18 deletions
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33
lib/setuplib.php
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@ -1327,26 +1327,23 @@ function get_real_size($size = 0) {
if (!$size) { if (!$size) {
return 0; return 0;
} }
$scan = array();
$scan['GB'] = 1073741824;
$scan['Gb'] = 1073741824;
$scan['G'] = 1073741824;
$scan['MB'] = 1048576;
$scan['Mb'] = 1048576;
$scan['M'] = 1048576;
$scan['m'] = 1048576;
$scan['KB'] = 1024;
$scan['Kb'] = 1024;
$scan['K'] = 1024;
$scan['k'] = 1024;
while (list($key) = each($scan)) { static $binaryprefixes = array(
if ((strlen($size)>strlen($key))&&(substr($size, strlen($size) - strlen($key))==$key)) { 'K' => 1024,
$size = substr($size, 0, strlen($size) - strlen($key)) * $scan[$key]; 'k' => 1024,
break; 'M' => 1048576,
} 'm' => 1048576,
'G' => 1073741824,
'g' => 1073741824,
'T' => 1099511627776,
't' => 1099511627776,
);
if (preg_match('/^([0-9]+)([KMGT])/i', $size, $matches)) {
return $matches[1] * $binaryprefixes[$matches[2]];
} }
return $size;
return (int) $size;
} }
/** /**