PHP gets the size of all disk space on the server_PHP tutorial

In daily programming, it is sometimes necessary to obtain disk space usage. In most cases, the disk_free_space and disk_total_space functions are used.

The following example is to obtain the size of all disk space of the server. The example is as follows:

/**

* Byte formatting Format the number of bytes into the size described by B K M G T P E Z Y

* @param int $size size

* @param int $dec display type

* @return int

​*/

function byte_format($size,$dec=2)

{

$a = array("B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB");

$pos = 0;

while ($size >= 1024)

{

$size /= 1024;

         $pos++;

}

Return round($size,$dec)." ".$a[$pos];

}

/**

* Get single disk information

* @param $letter

* @return array

​*/

function get_disk_space($letter)

{

//Get disk information

$diskct = 0;

$disk = array();

/*if(@disk_total_space($key)!=NULL) *To prevent affecting the server, the floppy drive is not checked

{

$diskct=1;

$disk["A"]=round((@disk_free_space($key)/(1024*1024*1024)),2)."G / ".round((@disk_total_space($key)/(1024*1024* 1024)),2).'G';

}*/

$diskz = 0; //Total disk capacity

$diskk = 0; //Disk remaining capacity

$is_disk = $letter.':';

If(@disk_total_space($is_disk)!=NULL)

{

$diskct++;

$disk[$letter][0] = byte_format(@disk_free_space($is_disk));

$disk[$letter][1] = byte_format(@disk_total_space($is_disk));

$disk[$letter][2] = round(((@disk_free_space($is_disk)/(1024*1024*1024))/(@disk_total_space($is_disk)/(1024*1024*1024)))*100, 2).'%';

$diskk+=byte_format(@disk_free_space($is_disk));

$diskz+=byte_format(@disk_total_space($is_disk));

}

Return $disk; www.2cto.com

}

/**

* Get disk usage

* @return var

​*/

function get_spec_disk($type='system')

{

$disk = array();

switch ($type)

{

case 'system':

​​​​ //strrev(array_pop(explode(':',strrev(getenv_info('SystemRoot')))));//Get the system drive letter

           $disk = get_disk_space(strrev(array_pop(explode(':',strrev(getenv('SystemRoot'))))));

         break;

case 'all':

foreach (range('b','z') as $letter)

            {

            $disk = array_merge($disk,get_disk_space($letter));

}

         break;

​​default:

          $disk = get_disk_space($type);

         break;

}

Return $disk;

}

From this, you can expand it, such as getting the overall disk space size and the remaining disk space.

I have to reiterate here, if the server has a floppy disk, remember to avoid it, otherwise it will hinder the server-related floppy disk running program, and using the program to read all disk usage may be slow! Notice!