PHP get CPU and Memory usage code example

/* @ system parameter probing LINUX @Edit bbs.it-home.org @date 2013/5/8 */ function Sys_linux () { Cpu if (false = = = ($str = @file ("/proc/cpuinfo"))) return false; $str = Implode ("", $str); @preg_match_all ("/model\s+name\s{0,}\:+\s{0,} ([\w\s\) \ (.] +) [\r\n]+/, $str, $model); @preg_match_all ("/cpu\s+mhz\s{0,}\:+\s{0,} ([\d\.] +) [\r\n]+/, $str, $mhz); @preg_match_all ("/cache\s+size\s{0,}\:+\s{0,} ([\d\.] +\s{0,}[a-z]+[\r\n]+)/", $str, $cache); if (False!== Is_array ($model [1])) { $res [' CPU '] [' num '] = sizeof ($model [1]); for ($i = 0; $i < $res [' CPU '] [' num ']; $i + +) { $res [' CPU '] [' detail '] [] = ' type: '. $model [1][$i]. "Cache:". $cache [1][$i]; } if (False!== Is_array ($res [' CPU '] [' detail ']) $res [' CPU '] [' detail '] = implode (" ", $res [' CPU '] [' detail ']); } UPTIME if (false = = = ($str = @file ("/proc/uptime"))) return false; $str = Explode ("", Implode ("", $str)); $str = Trim ($str [0]); $min = $STR/60; $hours = $min/60; $days = Floor ($hours/24); $hours = Floor ($hours – ($days * 24)); $min = Floor ($min – ($days * 60 * 24) – ($hours * 60)); if ($days!== 0) $res [' uptime '] = $days. " Days "; if ($hours!== 0) $res [' uptime ']. = $hours. " Hours "; $res [' uptime ']. = $min. " Minutes "; MEMORY if (false = = = ($str = @file ("/proc/meminfo"))) return false; $str = Implode ("", $str); Preg_match_all ("/memtotal\s{0,}\:+\s{0,} ([\d\.] +).+? Memfree\s{0,}\:+\s{0,} ([\d\.] +).+? Swaptotal\s{0,}\:+\s{0,} ([\d\.] +).+? Swapfree\s{0,}\:+\s{0,} ([\d\.] +)/S ", $str, $buf); $res [' memtotal '] = round ($buf [1][0]/1024, 2); $res [' memfree '] = round ($buf [2][0]/1024, 2); $res [' memused '] = ($res [' memtotal ']-$res [' memfree ']); $res [' mempercent '] = (floatval ($res [' memtotal '])!=0)? Round (($res [' memused ']/$res [' Memtotal ']): 0; $res [' swaptotal '] = round ($buf [3][0]/1024, 2); $res [' swapfree '] = round ($buf [4][0]/1024, 2); $res [' swapused '] = ($res [' swaptotal ']-$res [' swapfree ']); $res [' swappercent '] = (floatval ($res [' swaptotal '])!=0)? Round (($res [' swapused ']/$res [' Swaptotal ']): 0; LOAD AVG if (false = = = ($str = @file ("/proc/loadavg"))) return false; $str = Explode ("", Implode ("", $str)); $str = Array_chunk ($str, 3); $res [' loadavg '] = Implode ("", $str [0]); return $res; } /* System parameter Detection FreeBSD */ function Sys_freebsd () { Cpu if (false = = = ($res [' CPU '] [' num '] = Get_key ("Hw.ncpu")) return false; $res [' CPU '] [' detail '] = Get_key ("Hw.model"); LOAD AVG if (false = = = ($res [' loadavg '] = Get_key ("Vm.loadavg")) return false; $res [' loadavg '] = Str_replace ("{", "", $res [' loadavg ']); $res [' loadavg '] = Str_replace ("}", "", $res [' loadavg ']); UPTIME if (false = = = ($buf = Get_key ("Kern.boottime"))) return false; $buf = Explode (' ', $buf); $sys _ticks = time () –intval ($buf [3]); $min = $sys _ticks/60; $hours = $min/60; $days = Floor ($hours/24); $hours = Floor ($hours – ($days * 24)); $min = Floor ($min – ($days * 60 * 24) – ($hours * 60)); if ($days!== 0) $res [' uptime '] = $days. " Days "; if ($hours!== 0) $res [' uptime ']. = $hours. " Hours "; $res [' uptime ']. = $min. " Minutes "; MEMORY if (false = = = ($buf = Get_key ("Hw.physmem"))) return false; $res [' memtotal '] = round ($buf/1024/1024, 2); $buf = explode ("\ n", Do_command ("Vmstat", "")); $buf = Explode ("", Trim ($buf [2])); $res [' memfree '] = round ($buf [5]/1024, 2); $res [' memused '] = ($res [' memtotal ']-$res [' memfree ']); $res [' mempercent '] = (floatval ($res [' memtotal '])!=0)? Round (($res [' memused ']/$res [' Memtotal ']): 0; $buf = explode ("\ n", Do_command ("Swapinfo", "K")); $buf = $buf [1]; Preg_match_all ("/([0-9]+) \s+ ([0-9]+] \s+ ([0-9]+)/", $buf, $BUFARR); $res [' swaptotal '] = round ($bufArr [1][0]/1024, 2); $res [' swapused '] = round ($bufArr [2][0]/1024, 2); $res [' swapfree '] = round ($bufArr [3][0]/1024, 2); $res [' swappercent '] = (floatval ($res [' swaptotal '])!=0)? Round (($res [' swapused ']/$res [' Swaptotal ']): 0; return $res; } /* Get parameter Value FreeBSD */ function Get_key ($keyName) { Return Do_command (' Sysctl ', "-N $keyName"); } /* Determining the execution file location FreeBSD */ function Find_command ($commandName) { $path = Array ('/bin ', '/sbin ', '/usr/bin ', '/usr/sbin ', '/usr/local/bin ', '/usr/local/sbin '); foreach ($path as $p) { if (@is_executable ("$p/$commandName") return "$p/$commandName"; } return false; } /* Execute system Command FreeBSD */ function Do_command ($commandName, $args) { $buffer = ""; if (false = = = ($command = Find_command ($commandName))) return false; if ($fp = @popen ("$command $args", ' R ')) { while (! @feof ($FP)) { $buffer. = @fgets ($fp, 4096); } Return trim ($buffer); } return false; } ?> Copy Code Description: Memory with this function can be done: Memory_get_usage () under Windows can only read the results of the cmd command run. For example: $a = System (' mem '); echo $a. " “; Or $a = System (' mem '); echo $a. " “; ?> Copy Code

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