Linux环境PHP7.0安装

PHP7和HHVM比较
PHP7的在真实场景的性能确实已经和HHVM相当, 在一些场景甚至超过了HHVM。HHVM的运维复杂, 是多线程模型, 这就代表着如果一个线程导致crash了, 那么整个服务就挂了, 并且它不会自动重启。另外它采用JIT, 那么意味着, 重启以后要预热, 没有预热的情况下, 性能较为糟糕。并且多线程模型调试困难, 这对于追求稳定来说的Web服务来说, 是非常不适合的。

Nginx以及PHP7.0之前的版本可以参考此文：Linux环境Nginx安装与调试以及PHP安装

PHP7.0正式版已经在2015年11月份左右发布，目前是PHP7.0.2版本，本人最早是从2015年8月php7的第一个测试版跟起，现在正式版发布。

linux版本：64位CentOS 6.6

Nginx版本：nginx1.8.0

php版本：php-7.0.2

下载

# wget  http://php.net/get/php-7.0.2.tar.gz/from/a/mirror

建议安装之前先看看安装帮助文件INSTALL
解压安装# tar zxvf php-7.0.2.tar.gz# cd php-7.0.2首先查看安装帮助# ./configure   --help# ./configure --prefix=/usr/local/php
 --with-curl
 --with-freetype-dir
 --with-gd
 --with-gettext
 --with-iconv-dir
 --with-kerberos
 --with-libdir=lib64
 --with-libxml-dir
 --with-mysqli
 --with-openssl
 --with-pcre-regex
 --with-pdo-mysql
 --with-pdo-sqlite
 --with-pear
 --with-png-dir
 --with-xmlrpc
 --with-xsl
 --with-zlib
 --enable-fpm
 --enable-bcmath
 --enable-libxml
 --enable-inline-optimization
 --enable-gd-native-ttf
 --enable-mbregex
 --enable-mbstring
 --enable-opcache
 --enable-pcntl
 --enable-shmop
 --enable-soap
 --enable-sockets
 --enable-sysvsem
 --enable-xml
 --enable-zip

如果配置错误，需要安装需要的模块，直接yum一并安装依赖库

# yum -y install libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel mysql pcre-devel

注意：安装php7beta3的时候有几处配置不过去，需要yum一下，现在php-7.0.2已经不用这样了。# yum -y install curl-devel# yum -y install libxslt-devel
编译安装# make &&  make install

配置文件# cp php.ini-development /usr/local/php/lib/php.ini# cp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf
# cp /usr/local/php/etc/php-fpm.d/www.conf.default /usr/local/php/etc/php-fpm.d/www.conf# cp -R ./sapi/fpm/php-fpm /etc/init.d/php-fpm
需要注意的是php7中www.conf这个配置文件配置phpfpm的端口号等信息，如果你修改默认的9000端口号需在这里改，再改nginx的配置启动
#  /etc/init.d/php-fpm

查看phpinfo()

php7和php5性能分析比较

<?php
//time /usr/local/php5/bin/php search_by_key.php
$a = array();
    for($i=0;$i<600000;$i++){
        $a[$i] = $i;
        }

    foreach($a as $i)
    {
        array_key_exists($i, $a);
    }
?>

生成一个 60 万元素的数组，通过查找key 的方式，来确定key是否存在。

PHP 5.4.44 版
[root@localhost www5.4.44]# time /usr/local/php5.4.44/bin/php search_by_key.php

real    0m0.351s
user    0m0.300s
sys     0m0.050s
PHP 5.5.28 版
[root@localhost www]# time /usr/local/php/bin/php search_by_key.php
real    0m0.361s
user    0m0.304s
sys     0m0.057s

PHP 7.0.0 版
[root@localhost www7]# time /usr/local/php7/bin/php search_by_key.php
real    0m0.114s
user    0m0.097s
sys     0m0.017s

很明显php7的性能是php5的3倍！
配置opcache
官网地址：http://php.net/opcache

使用下列推荐设置来获得较好的 性能：

opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.revalidate_freq=60
opcache.fast_shutdown=1
opcache.enable_cli=1

你也可以禁用 opcache.save_comments 并且启用 opcache.enable_file_override。 需要提醒的是，在生产环境中使用上述配置之前，必须经过严格测试。 因为上述配置存在一个已知问题，它会引发一些框架和应用的异常， 尤其是在存在文档使用了备注注解的时候。 

vim /usr/local/php7/etc/php.ini
# 加入
zend_extension=/usr/local/php7/lib/php/extensions/no-debug-non-zts-20141001/opcache.so

重启

# killall php-fpm

#  /etc/init.d/php-fpm

如果上图不太明白，可以使用文末Opcache 状态测试代码(https://gist.github.com/ck-on/4959032)进行演示：


Opcache 状态测试代码(https://gist.github.com/ck-on/4959032)进行演示：

<?php
/*
OCP - Opcache Control Panel (aka Zend Optimizer+ Control Panel for PHP)
Author: _ck_ (with contributions by GK, stasilok)
Version: 0.1.6
Free for any kind of use or modification, I am not responsible for anything, please share your improvements
 
* revision history
0.1.6 2013-04-12 moved meta to footer so graphs can be higher and reduce clutter
0.1.5 2013-04-12 added graphs to visualize cache state, please report any browser/style bugs
0.1.4 2013-04-09 added "recheck" to update files when using large revalidate_freq (or validate_timestamps=Off)
0.1.3 2013-03-30 show host and php version, can bookmark with hashtag ie. #statistics - needs new layout asap
0.1.2 2013-03-25 show optimization levels, number formatting, support for start_time in 7.0.2
0.1.1 2013-03-18 today Zend completely renamed Optimizer+ to OPcache, adjusted OCP to keep working
0.1.0 2013-03-17 added group/sort indicators, replaced "accelerator_" functions with "opcache_"
0.0.6 2013-03-16 transition support as Zend renames product and functions for PHP 5.5 (stasilok)
0.0.5 2013-03-10 added refresh button (GK)
0.0.4 2013-02-18 added file grouping and sorting (click on headers) - code needs cleanup but gets the job done
0.0.2 2013-02-14 first public release
 
* known problems/limitations:
Unlike APC, the Zend OPcache API
- cannot determine when a file was put into the cache
- cannot change settings on the fly
- cannot protect opcache functions by restricting execution to only specific scripts/paths
 
* todo:
Extract variables for prefered ordering and better layout instead of just dumping into tables
File list filter
 
*/
 
// ini_set("display_errors",1); error_reporting(-1);
if ( count(get_included_files())>1 || php_sapi_name()=="cli" || empty($_SERVER["REMOTE_ADDR"]) ) { die; } // weak block against indirect access
 
$time=time();
define("CACHEPREFIX",function_exists("opcache_reset")?"opcache_":(function_exists("accelerator_reset")?"accelerator_":""));
 
if ( !empty($_GET["RESET"]) ) {	
if ( function_exists(CACHEPREFIX."reset") ) { call_user_func(CACHEPREFIX."reset"); }
header( "Location: ".str_replace("?".$_SERVER["QUERY_STRING"],"",$_SERVER["REQUEST_URI"]) );
exit;
}
 
if ( !empty($_GET["RECHECK"]) ) {
if ( function_exists(CACHEPREFIX."invalidate") ) {
$recheck=trim($_GET["RECHECK"]); $files=call_user_func(CACHEPREFIX."get_status");
if (!empty($files["scripts"])) {
foreach ($files["scripts"] as $file=>$value) {
if ( $recheck==="1" || strpos($file,$recheck)===0 ) call_user_func(CACHEPREFIX."invalidate",$file);
}
}
header( "Location: ".str_replace("?".$_SERVER["QUERY_STRING"],"",$_SERVER["REQUEST_URI"]) );
} else { echo "Sorry, this feature requires Zend Opcache newer than April 8th 2013"; }
exit;
}
 
?><!DOCTYPE html>
<html>
<head>
<title>OCP - Opcache Control Panel</title>
<meta name="ROBOTS" content="NOINDEX,NOFOLLOW,NOARCHIVE" />
 
<style type="text/css">
body {background-color: #fff; color: #000;}
body, td, th, h1, h2 {font-family: sans-serif;}
pre {margin: 0px; font-family: monospace;}
a:link,a:visited {color: #000099; text-decoration: none;}
a:hover {text-decoration: underline;}
table {border-collapse: collapse; width: 600px; }
.center {text-align: center;}
.center table { margin-left: auto; margin-right: auto; text-align: left;}
.center th { text-align: center !important; }
.middle {vertical-align:middle;}
td, th { border: 1px solid #000; font-size: 75%; vertical-align: baseline; padding: 3px; }
h1 {font-size: 150%;}
h2 {font-size: 125%;}
.p {text-align: left;}
.e {background-color: #ccccff; font-weight: bold; color: #000; width:50%; white-space:nowrap;}
.h {background-color: #9999cc; font-weight: bold; color: #000;}
.v {background-color: #cccccc; color: #000;}
.vr {background-color: #cccccc; text-align: right; color: #000; white-space: nowrap;}
.b {font-weight:bold;}
.white, .white a {color:#fff;}
img {float: right; border: 0px;}
hr {width: 600px; background-color: #cccccc; border: 0px; height: 1px; color: #000;}
.meta, .small {font-size: 75%; }
.meta {margin: 2em 0;}
.meta a, th a {padding: 10px; white-space:nowrap; }
.buttons {margin:0 0 1em;}
.buttons a {margin:0 15px; background-color: #9999cc; color:#fff; text-decoration:none; padding:1px; border:1px solid #000; display:inline-block; width:5em; text-align:center;}
#files td.v a {font-weight:bold; color:#9999cc; margin:0 10px 0 5px; text-decoration:none; font-size:120%;}
#files td.v a:hover {font-weight:bold; color:#ee0000;}
.graph {display:inline-block; width:145px; margin:1em 0 1em 1px; border:0; vertical-align:top;}
.graph table {width:100%; height:150px; border:0; padding:0; margin:5px 0 0 0; position:relative;}
.graph td {vertical-align:middle; border:0; padding:0 0 0 5px;}
.graph .bar {width:25px; text-align:right; padding:0 2px; color:#fff;}
.graph .total {width:34px; text-align:center; padding:0 5px 0 0;}
.graph .total div {border:1px dashed #888; border-right:0; height:99%; width:12px; position:absolute; bottom:0; left:17px; z-index:-1;}
.graph .total span {background:#fff; font-weight:bold;}
.graph .actual {text-align:right; font-weight:bold; padding:0 5px 0 0;}
.graph .red {background:#ee0000;}
.graph .green {background:#00cc00;}
.graph .brown {background:#8B4513;}
</style>
<!--[if lt IE 9]><script type="text/javascript" defer="defer">
window.onload=function(){var i,t=document.getElementsByTagName("table");for(i=0;i<t.length;i++){if(t[i].parentNode.className=="graph")t[i].style.height=150-(t[i].clientHeight-150)+"px";}}
</script><![endif]-->
</head>
 
<body>
<div class="center">
 
<h1><a href="?">Opcache Control Panel</a></h1>
 
<div class="buttons">
<a href="?ALL=1">Details</a>
<a href="?FILES=1&GROUP=2&SORT=3">Files</a>
<a href="?RESET=1" onclick="return confirm("RESET cache ?")">Reset</a>
<?php if ( function_exists(CACHEPREFIX."invalidate") ) { ?>
<a href="?RECHECK=1" onclick="return confirm("Recheck all files in the cache ?")">Recheck</a>
<?php } ?>
<a href="?" onclick="window.location.reload(true); return false">Refresh</a>
</div>
 
<?php
 
if ( !function_exists(CACHEPREFIX."get_status") ) { echo "<h2>Opcache not detected?</h2>"; die; }
 
if ( !empty($_GET["FILES"]) ) { echo "<h2>files cached</h2>"; files_display(); echo "</div></body></html>"; exit; }
 
if ( !(isset($_REQUEST["GRAPHS"]) && !$_REQUEST["GRAPHS"]) && CACHEPREFIX=="opcache_") { graphs_display(); if ( !empty($_REQUEST["GRAPHS"]) ) { exit; } }
 
ob_start(); phpinfo(8); $phpinfo = ob_get_contents(); ob_end_clean(); // some info is only available via phpinfo? sadly buffering capture has to be used
if ( !preg_match( "/module\_Zend (Optimizer+|OPcache).+?(<table[^>]*>.+?</table>).+?(<table[^>]*>.+?</table>)/s", $phpinfo, $opcache) ) { } // todo
 
if ( function_exists(CACHEPREFIX."get_configuration") ) { echo "<h2>general</h2>"; $configuration=call_user_func(CACHEPREFIX."get_configuration"); }
 
$host=function_exists("gethostname")?@gethostname():@php_uname("n"); if (empty($host)) { $host=empty($_SERVER["SERVER_NAME"])?$_SERVER["HOST_NAME"]:$_SERVER["SERVER_NAME"]; }
$version=array("Host"=>$host);
$version["PHP Version"]="PHP ".(defined("PHP_VERSION")?PHP_VERSION:"???")." ".(defined("PHP_SAPI")?PHP_SAPI:"")." ".(defined("PHP_OS")?" ".PHP_OS:"");
$version["Opcache Version"]=empty($configuration["version"]["version"])?"???":$configuration["version"][CACHEPREFIX."product_name"]." ".$configuration["version"]["version"];
print_table($version);
 
if ( !empty($opcache[2]) ) { echo preg_replace("/<tr><td class="e">[^>]+</td><td class="v">[0-9,. ]+</td></tr>/","",$opcache[2]); }
 
if ( function_exists(CACHEPREFIX."get_status") && $status=call_user_func(CACHEPREFIX."get_status") ) {
$uptime=array();
if ( !empty($status[CACHEPREFIX."statistics"]["start_time"]) ) {
$uptime["uptime"]=time_since($time,$status[CACHEPREFIX."statistics"]["start_time"],1,"");
}
if ( !empty($status[CACHEPREFIX."statistics"]["last_restart_time"]) ) {
$uptime["last_restart"]=time_since($time,$status[CACHEPREFIX."statistics"]["last_restart_time"]);
}
if (!empty($uptime)) {print_table($uptime);}
if ( !empty($status["cache_full"]) ) { $status["memory_usage"]["cache_full"]=$status["cache_full"]; }
echo "<h2 id="memory">memory</h2>";
print_table($status["memory_usage"]);
unset($status[CACHEPREFIX."statistics"]["start_time"],$status[CACHEPREFIX."statistics"]["last_restart_time"]);
echo "<h2 id="statistics">statistics</h2>";
print_table($status[CACHEPREFIX."statistics"]);
}
 
if ( empty($_GET["ALL"]) ) { meta_display(); exit; }
if ( !empty($configuration["blacklist"]) ) { echo "<h2 id="blacklist">blacklist</h2>"; print_table($configuration["blacklist"]); }
 
if ( !empty($opcache[3]) ) { echo "<h2 id="runtime">runtime</h2>"; echo $opcache[3]; }
 
$name="zend opcache"; $functions=get_extension_funcs($name);
if (!$functions) { $name="zend optimizer+"; $functions=get_extension_funcs($name); }
if ($functions) { echo "<h2 id="functions">functions</h2>"; print_table($functions); } else { $name=""; }
 
$level=trim(CACHEPREFIX,"_").".optimization_level";
if (isset($configuration["directives"][$level])) {
echo "<h2 id="optimization">optimization levels</h2>";	
$levelset=strrev(base_convert($configuration["directives"][$level], 10, 2));
$levels=array(
1=>"<a href="http://wikipedia.org/wiki/Common_subexpression_elimination">Constants subexpressions elimination</a> (CSE) true, false, null, etc.<br />Optimize series of ADD_STRING / ADD_CHAR<br />Convert CAST(IS_BOOL,x) into BOOL(x)<br />Convert <a href="http://www.php.net/manual/internals2.opcodes.init-fcall-by-name.php">INIT_FCALL_BY_NAME</a> + <a href="http://www.php.net/manual/internals2.opcodes.do-fcall-by-name.php">DO_FCALL_BY_NAME</a> into <a href="http://www.php.net/manual/internals2.opcodes.do-fcall.php">DO_FCALL</a>",
2=>"Convert constant operands to expected types<br />Convert conditional <a href="http://php.net/manual/internals2.opcodes.jmp.php">JMP</a> with constant operands<br />Optimize static <a href="http://php.net/manual/internals2.opcodes.brk.php">BRK</a> and <a href="<a href="http://php.net/manual/internals2.opcodes.cont.php">CONT</a>",
3=>"Convert $a = $a + expr into $a += expr<br />Convert $a++ into ++$a<br />Optimize series of <a href="http://php.net/manual/internals2.opcodes.jmp.php">JMP</a>",
4=>"PRINT and ECHO optimization (<a href="https://github.com/zend-dev/ZendOptimizerPlus/issues/73">defunct</a>)",
5=>"Block Optimization - most expensive pass<br />Performs many different optimization patterns based on <a href="http://wikipedia.org/wiki/Control_flow_graph">control flow graph</a> (CFG)",
9=>"Optimize <a href="http://wikipedia.org/wiki/Register_allocation">register allocation</a> (allows re-usage of temporary variables)",
10=>"Remove NOPs"
);
echo "<table width="600" border="0" cellpadding="3"><tbody><tr class="h"><th>Pass</th><th>Description</th></tr>";
foreach ($levels as $pass=>$description) {
$disabled=substr($levelset,$pass-1,1)!=="1" || $pass==4 ? " white":"";
echo "<tr><td class="v center middle".$disabled."">".$pass."</td><td class="v".$disabled."">".$description."</td></tr>";
}
echo "</table>";
}
 
if ( isset($_GET["DUMP"]) ) {
if ($name) { echo "<h2 id="ini">ini</h2>"; print_table(ini_get_all($name,true)); }
foreach ($configuration as $key=>$value) { echo "<h2>",$key,"</h2>"; print_table($configuration[$key]); }
exit;
}
 
meta_display();
 
echo "</div></body></html>";
 
exit;
 
function time_since($time,$original,$extended=0,$text="ago") {	
$time = $time - $original;
$day = $extended? floor($time/86400) : round($time/86400,0);
$amount=0; $unit="";
if ( $time < 86400) {
if ( $time < 60)	{ $amount=$time; $unit="second"; }
elseif ( $time < 3600) { $amount=floor($time/60); $unit="minute"; }
else	{ $amount=floor($time/3600); $unit="hour"; }	
}
elseif ( $day < 14) { $amount=$day; $unit="day"; }
elseif ( $day < 56) { $amount=floor($day/7); $unit="week"; }
elseif ( $day < 672) { $amount=floor($day/30); $unit="month"; }
else {	$amount=intval(2*($day/365))/2; $unit="year"; }
if ( $amount!=1) {$unit.="s";}	
if ($extended && $time>60) { $text=" and ".time_since($time,$time<86400?($time<3600?$amount*60:$amount*3600):$day*86400,0,"").$text; }
return $amount." ".$unit." ".$text;
}
 
function print_table($array,$headers=false) {
if ( empty($array) || !is_array($array) ) {return;}
echo "<table border="0" cellpadding="3" width="600">";
if (!empty($headers)) {
if (!is_array($headers)) {$headers=array_keys(reset($array));}
echo "<tr class="h">";
foreach ($headers as $value) { echo "<th>",$value,"</th>"; }
echo "</tr>";
}
foreach ($array as $key=>$value) {
echo "<tr>";
if ( !is_numeric($key) ) {
$key=ucwords(str_replace("_"," ",$key));
echo "<td class="e">",$key,"</td>";
if ( is_numeric($value) ) {
if ( $value>1048576) { $value=round($value/1048576,1)."M"; }
elseif ( is_float($value) ) { $value=round($value,1); }
}
}
if ( is_array($value) ) {
foreach ($value as $column) {
echo "<td class="v">",$column,"</td>";
}
echo "</tr>";
}
else { echo "<td class="v">",$value,"</td></tr>"; }
}
echo "</table>";
}
 
function files_display() {	
$status=call_user_func(CACHEPREFIX."get_status");
if ( empty($status["scripts"]) ) {return;}
if ( isset($_GET["DUMP"]) ) { print_table($status["scripts"]); exit;}
$time=time(); $sort=0;
$nogroup=preg_replace("/&?GROUP=[-0-9]+/","",$_SERVER["REQUEST_URI"]);
$nosort=preg_replace("/&?SORT=[-0-9]+/","",$_SERVER["REQUEST_URI"]);
$group=empty($_GET["GROUP"])?0:intval($_GET["GROUP"]); if ( $group<0 || $group>9) { $group=1;}
$groupset=array_fill(0,9,""); $groupset[$group]=" class="b" ";
echo "<div class="meta">
<a ",$groupset[0],"href="",$nogroup,"">ungroup</a> |
<a ",$groupset[1],"href="",$nogroup,"&GROUP=1">1</a> |
<a ",$groupset[2],"href="",$nogroup,"&GROUP=2">2</a> |
<a ",$groupset[3],"href="",$nogroup,"&GROUP=3">3</a> |
<a ",$groupset[4],"href="",$nogroup,"&GROUP=4">4</a> |
<a ",$groupset[5],"href="",$nogroup,"&GROUP=5">5</a>
</div>";
if ( !$group ) { $files =& $status["scripts"]; }
else {	
$files=array();
foreach ($status["scripts"] as $data) {
if ( preg_match("@^[/]([^/]+[/]){".$group."}@",$data["full_path"],$path) ) {
if ( empty($files[$path[0]])) { $files[$path[0]]=array("full_path"=>"","files"=>0,"hits"=>0,"memory_consumption"=>0,"last_used_timestamp"=>"","timestamp"=>""); }
$files[$path[0]]["full_path"]=$path[0];
$files[$path[0]]["files"]++;
$files[$path[0]]["memory_consumption"]+=$data["memory_consumption"];	
$files[$path[0]]["hits"]+=$data["hits"];
if ( $data["last_used_timestamp"]>$files[$path[0]]["last_used_timestamp"]) {$files[$path[0]]["last_used_timestamp"]=$data["last_used_timestamp"];}
if ( $data["timestamp"]>$files[$path[0]]["timestamp"]) {$files[$path[0]]["timestamp"]=$data["timestamp"];}	
}	
}
}
if ( !empty($_GET["SORT"]) ) {
$keys=array(
"full_path"=>SORT_STRING,
"files"=>SORT_NUMERIC,
"memory_consumption"=>SORT_NUMERIC,
"hits"=>SORT_NUMERIC,
"last_used_timestamp"=>SORT_NUMERIC,
"timestamp"=>SORT_NUMERIC
);
$titles=array("","path",$group?"files":"","size","hits","last used","created");
$offsets=array_keys($keys);
$key=intval($_GET["SORT"]);
$direction=$key>0?1:-1;
$key=abs($key)-1;
$key=isset($offsets[$key])&&!($key==1&&empty($group))?$offsets[$key]:reset($offsets);
$sort=array_search($key,$offsets)+1;
$sortflip=range(0,7); $sortflip[$sort]=-$direction*$sort;
if ( $keys[$key]==SORT_STRING) {$direction=-$direction; }
$arrow=array_fill(0,7,""); $arrow[$sort]=$direction>0?" ▼":" ▲";
$direction=$direction>0?SORT_DESC:SORT_ASC;
$column=array(); foreach ($files as $data) { $column[]=$data[$key]; }
array_multisort($column, $keys[$key], $direction, $files);
}
 
echo "<table border="0" cellpadding="3" width="960" id="files">
<tr class="h">";
foreach ($titles as $column=>$title) {
if ($title) echo "<th><a href="",$nosort,"&SORT=",$sortflip[$column],"">",$title,$arrow[$column],"</a></th>";
}
echo " </tr>";
foreach ($files as $data) {
echo "<tr>
<td class="v" nowrap><a title="recheck" href="?RECHECK=",rawurlencode($data["full_path"]),"">x</a>",$data["full_path"],"</td>",
($group?"<td class="vr">".number_format($data["files"])."</td>":""),
"<td class="vr">",number_format(round($data["memory_consumption"]/1024)),"K</td>",
"<td class="vr">",number_format($data["hits"]),"</td>",
"<td class="vr">",time_since($time,$data["last_used_timestamp"]),"</td>",
"<td class="vr">",empty($data["timestamp"])?"":time_since($time,$data["timestamp"]),"</td>
</tr>";
}
echo "</table>";
}
 
function graphs_display() {
$graphs=array();
$colors=array("green","brown","red");
$primes=array(223, 463, 983, 1979, 3907, 7963, 16229, 32531, 65407, 130987);
$configuration=call_user_func(CACHEPREFIX."get_configuration");
$status=call_user_func(CACHEPREFIX."get_status");
 
$graphs["memory"]["total"]=$configuration["directives"]["opcache.memory_consumption"];
$graphs["memory"]["free"]=$status["memory_usage"]["free_memory"];
$graphs["memory"]["used"]=$status["memory_usage"]["used_memory"];
$graphs["memory"]["wasted"]=$status["memory_usage"]["wasted_memory"];
 
$graphs["keys"]["total"]=$status[CACHEPREFIX."statistics"]["max_cached_keys"];	
foreach ($primes as $prime) { if ($prime>=$graphs["keys"]["total"]) { $graphs["keys"]["total"]=$prime; break;} }
$graphs["keys"]["free"]=$graphs["keys"]["total"]-$status[CACHEPREFIX."statistics"]["num_cached_keys"];
$graphs["keys"]["scripts"]=$status[CACHEPREFIX."statistics"]["num_cached_scripts"];
$graphs["keys"]["wasted"]=$status[CACHEPREFIX."statistics"]["num_cached_keys"]-$status[CACHEPREFIX."statistics"]["num_cached_scripts"];
 
$graphs["hits"]["total"]=0;
$graphs["hits"]["hits"]=$status[CACHEPREFIX."statistics"]["hits"];
$graphs["hits"]["misses"]=$status[CACHEPREFIX."statistics"]["misses"];
$graphs["hits"]["blacklist"]=$status[CACHEPREFIX."statistics"]["blacklist_misses"];
$graphs["hits"]["total"]=array_sum($graphs["hits"]);
 
$graphs["restarts"]["total"]=0;
$graphs["restarts"]["manual"]=$status[CACHEPREFIX."statistics"]["manual_restarts"];
$graphs["restarts"]["keys"]=$status[CACHEPREFIX."statistics"]["hash_restarts"];
$graphs["restarts"]["memory"]=$status[CACHEPREFIX."statistics"]["oom_restarts"];
$graphs["restarts"]["total"]=array_sum($graphs["restarts"]);
 
foreach ( $graphs as $caption=>$graph) {
echo "<div class="graph"><div class="h">",$caption,"</div><table border="0" cellpadding="0" cellspacing="0">";	
foreach ($graph as $label=>$value) {
if ($label=="total") { $key=0; $total=$value; $totaldisplay="<td rowspan="3" class="total"><span>".($total>999999?round($total/1024/1024)."M":($total>9999?round($total/1024)."K":$total))."</span><div></div></td>"; continue;}
$percent=$total?floor($value*100/$total):""; $percent=!$percent||$percent>99?"":$percent."%";
echo "<tr>",$totaldisplay,"<td class="actual">", ($value>999999?round($value/1024/1024)."M":($value>9999?round($value/1024)."K":$value)),"</td><td class="bar ",$colors[$key],"" height="",$percent,"">",$percent,"</td><td>",$label,"</td></tr>";
$key++; $totaldisplay="";
}
echo "</table></div>","
";
}
}
 
function meta_display() {
?>
<div class="meta">
<a href="http://files.zend.com/help/Zend-Server-6/content/zendoptimizerplus.html">directives guide</a> |
<a href="http://files.zend.com/help/Zend-Server-6/content/zend_optimizer+_-_php_api.htm">functions guide</a> |
<a href="https://wiki.php.net/rfc/optimizerplus">wiki.php.net</a> |
<a href="http://pecl.php.net/package/ZendOpcache">pecl</a> |
<a href="https://github.com/zend-dev/ZendOptimizerPlus/">Zend source</a> |
<a href="https://gist.github.com/ck-on/4959032/?ocp.php">OCP latest</a>
</div>
<?php
}

参考：PHP7 VS HHVM (WordPress)PHP7和HHVM的性能之争PHP7安装笔记
CentOS 7.1编译安装PHP7    写的比较好PHP 7 ，你值得拥有   测试方法
PHP官方的新一代PHP加速插件ZendOpcachephp中的脚本加速扩展opcache