SysInfo.php
public static function getMemInfo()
    {
        $result = [];
        if ($n = preg_match_all('/^([\S]+):\s+(\d+)\skB$/im', file_get_contents('/proc/meminfo'), $matches)) {
            for ($i = 0; $i < $n; $i++) {
                $result[$matches[1][$i]] = $matches[2][$i];
            }
        }

        return $result;
    }
public static function getMemInfo()
    {
        $result = [];
        if ($n = preg_match_all('/^([\S]+):\s+(\d+)\skB$/im', file_get_contents('/proc/meminfo'), $matches)) {
            for ($i = 0; $i < $n; $i++) {
                $result[$matches[1][$i]] = $matches[2][$i];
            }
        }

        return $result;
    }
Get information about memory

@return array Get associative array with information about memory. Array key can be:
<ul>
<li>MemTotal</li>
<li>MemFree</li>
<li>Buffers</li>
<li>Cached</li>
<li>SwapCached</li>
<li>Active</li>
<li>Inactive</li>
<li>Active(anon)</li>
<li>Inactive(anon)</li>
<li>Active(file)</li>
<li>Inactive(file)</li>
<li>Unevictable</li>
<li>Mlocked</li>
<li>SwapTotal</li>
<li>SwapFree</li>
<li>Dirty</li>
<li>Writeback</li>
<li>AnonPages</li>
<li>Mapped</li>
<li>Shmem</li>
<li>Slab</li>
<li>SReclaimable</li>
<li>SUnreclaim</li>
<li>KernelStack</li>
<li>PageTables</li>
<li>NFS_Unstable</li>
<li>Bounce</li>
<li>WritebackTmp</li>
<li>CommitLimit</li>
<li>Committed_AS</li>
<li>VmallocTotal</li>
<li>VmallocUsed</li>
<li>VmallocChunk</li>
<li>HardwareCorrupted</li>
<li>AnonHugePages</li>
<li>Hugepagesize</li>
<li>DirectMap4k</li>
<li>DirectMap2M</li>
</ul>
@static