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MySQLDumper/library/Msd/ConfigurationPhpValues.php
2011-06-10 21:55:32 +00:00

136 Zeilen
3,9 KiB
PHP

<?php
/**
* This file is part of MySQLDumper released under the GNU/GPL 2 license
* http://www.mysqldumper.net
*
* @package MySQLDumper
* @subpackage Configuration
* @version SVN: $Rev$
* @author $Author$
*/
/**
* Helper for getting dynamic configuration values like phpRam etc.
*
* @package MySQLDumper
* @subpackage Configuration
*/
class Msd_ConfigurationPhpValues
{
/**
* Read dynamic PHP config values
*
* @return Zend_Config
*/
public static function getDynamicValues ()
{
$phpRam = self::_getPhpRam();
$dynConfig = array(
'sendmailCall' => self::_getConfigSetting('sendmail_path'),
'safeMode' => self::_getConfigSetting('safe_mode', true),
'magicQuotesGpc' => get_magic_quotes_gpc(),
'disabledPhpFunctions' =>
str_replace(
',',
', ',
self::_getConfigSetting('disable_functions')
),
'maxExecutionTime' => self::_getMaxExecutionTime(),
'uploadMaxFilesize' => self::_getUploadMaxFilesize(),
'phpextensions' => implode(', ', get_loaded_extensions()),
'phpRam' => $phpRam,
'memoryLimit' => round($phpRam * 1024 * 1024 * 0.9, 0),
'compression' => self::_hasZlib(),
);
return new Zend_Config($dynConfig, true);
}
/**
* Read PHP's max_execution_time
*
* @return int
*/
private static function _getMaxExecutionTime()
{
$maxExecutionTime =
self::_getConfigSetting('max_execution_time', true);
if ($maxExecutionTime <= 5) {
// we didn't get the real value from the server - some deliver "-1"
$maxExecutionTime = 30;
} elseif ($maxExecutionTime > 30) {
// we don't use more than 30 seconds to avoid brower timeouts
$maxExecutionTime = 30;
}
return $maxExecutionTime;
}
/**
* Get PHP's upload_max_filesize
*
* @return int
*/
private static function _getUploadMaxFilesize()
{
$uploadMaxFilesize = self::_getConfigSetting('upload_max_filesize');
// Is value in Megabytes? If yes create output
if (strpos($uploadMaxFilesize, 'M')) {
$uploadMaxFilesize = str_replace('M', '', $uploadMaxFilesize);
$uploadMaxFilesize = trim($uploadMaxFilesize);
// re-calculate to Bytes
$uploadMaxFilesize *= 1024 * 1024;
}
return (int) $uploadMaxFilesize;;
}
/**
* Get PHP's ram size
*
* @return integer The memory limit in MB
*/
private static function _getPhpRam()
{
$ram = self::_getConfigSetting('memory_limit');
// we don't trust the value delivered by server config if < 16
if ($ram < 16) {
$ram = 16;
}
return $ram;
}
/**
* Detect if zlib is installed
*
* @return boolean
*/
private static function _hasZlib()
{
$zlib = false;
$extensions = get_loaded_extensions();
if (in_array('zlib', $extensions)) {
$zlib = true;
};
return (boolean) $zlib;
}
/**
* Returns a PHP-Setting from ini
*
* First try to read via ini_get(), then fall back to get_cfg_var()
*
* @param string $varName The name of the setting to read
* @param boolean $returnAsInt Whether to return value as integer
*/
private function _getConfigSetting($varName, $returnAsInt = false)
{
$value = @ini_get($varName);
// fallback if ini_get doesn't work
if ($value == '' || $value === null) {
$value = @get_cfg_var($varName);
}
if ($returnAsInt) {
$value = (int) $value;
}
return $value;
}
}