前端之家收集整理的这篇文章主要介绍了
PHP7正式版测试，性能惊艳！，
前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。
@H_301_0@我们今天就来看一下PHP 7正式版的算法和 wordpress 应用在其上的性能表现。
@H_
301_0@
PHP7 的安装，真是非常地向下兼容，下载，解压，把之前的配置命令用上，一路回车下去，毫无违和感。为了不影响现有的环境的运行，所有专门开辟了目录 。
@H_
301_0@配置参数如下：
<div class="jb51code">
<pre class="brush:
PHP;">
--prefix=/usr/local/
PHP7 --with-config-file-path=/usr/local/
PHP7/etc --enable-fpm --with-fpm-user=www --with-fpm-group=www --with-
MysqLi --with-pdo-
MysqL --with-iconv-dir --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --enable-mbregex --enable-mbstring --with-mcrypt --enable-ftp --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --without-pear --with-gettext --disable-fileinfo --enable-maintainer-zts
PHP7 -v 看到了我们熟悉的提示：
PHP;">
[root@localhost test]#
PHP7 -v
PHP 7.0.0 (cli) (built: Dec 2 2015 19:19:14) ( ZTS )
Copyright (c) 1997-2015 The
PHP Group
Zend Engine v3.0.0,Copyright (c) 1998-2015 Zend Technologies
PHP;">
PHP
$a = array();
for($i=0;$i<600000;$i++){
$a[$i] = $i;
}
foreach($a as $i)
{
array_key_exists($i,$a);
}
PHP 5.3.17 版
。
PHP search_by_key.
PHP
real 0m0.389s
user 0m0.337s
sys 0m0.051s
[root@localhost test]# time
PHP search_by_key.
PHP
real 0m0.378s
user 0m0.308s
sys 0m0.062s
[root@localhost test]# time
PHP search_by_key.
PHP
real 0m0.378s
user 0m0.317s
sys 0m0.061s
PHP7]# time
PHP7 search_by_key.
PHP
real 0m0.082s
user 0m0.066s
sys 0m0.014s
[root@localhost
PHP7]# time
PHP7 search_by_key.
PHP
real 0m0.080s
user 0m0.058s
sys 0m0.021s
[root@localhost
PHP7]# time
PHP7 search_by_key.
PHP
real 0m0.080s
user 0m0.053s
sys 0m0.026s`
PHP;">
PHP
$a = array();
for($i=0;$i<600000;$i++){
$a[$i] = $i;
}
foreach($a as $i)
{
array_key_exists($i,$a);
}
[root@localhost test]# time PHP search_by_val.PHP
real 0m24.296s
user 0m24.184s
sys 0m0.025s
[root@localhost test]# time PHP search_by_val.PHP
real 0m25.523s
user 0m25.317s
sys 0m0.026s
[root@localhost test]# time PHP search_by_val.PHP
real 0m26.026s
user 0m25.478s
sys 0m0.092s
PHP;">
[root@localhost
PHP7]# time
PHP7 search_by_val.
PHP
real 0m3.362s
user 0m3.323s
sys 0m0.007s
[root@localhost
PHP7]# time
PHP7 search_by_val.
PHP
real 0m3.266s
user 0m3.251s
sys 0m0.004s
[root@localhost
PHP7]# time
PHP7 search_by_val.
PHP
real 0m3.290s
user 0m3.275s
sys 0m0.006s
PHP;">
[root@localhost
PHP7]# time
PHP7 prime_v3.
PHP 2000000
real 0m1.151s
user 0m1.129s
sys 0m0.010s
[root@localhost
PHP7]# time
PHP7 prime_v3.
PHP 2000000
real 0m1.141s
user 0m1.123s
sys 0m0.011s
[root@localhost
PHP7]# time
PHP7 prime_v3.
PHP 2000000
real 0m1.145s
user 0m1.128s
sys 0m0.010s`
PHP;">
[root@localhost test]# time
PHP prime_v3.
PHP 2000000
prime number count under 2000000 is :148933
real 0m4.425s
user 0m4.380s
sys 0m0.023s
[root@localhost test]# time
PHP prime_v3.
PHP 2000000
prime number count under 2000000 is :148933
real 0m4.457s
user 0m4.414s
sys 0m0.032s
[root@localhost test]# time
PHP prime_v3.
PHP 2000000
prime number count under 2000000 is :148933
real 0m4.464s
user 0m4.399s
sys 0m0.046s
<div class="jb51code">
<pre class="brush:PHP;">
<?PHP
/*
- To change this license header,choose License Headers in Project Properties.
- To change this template file,choose Tools | Templates
- and open the template in the editor.
*/
$num = $argv[1];
$ret = array(2);
$flag = false;
for($i=3; $i<=$num; $i+=2)
{
$flag = false;
$sqrt = sqrt($i);
foreach($ret as $prime)
{
if($i%$prime == 0)
{
$flag = true;
break;
}
if($prime>$sqrt)
{
break;
}
}
if(!$flag)
{
$ret[] = $i;
}
}
echo (count($ret))."\n";
