centosphp重装

1. 如何在centos上安装php

.1 安装Apahce, PHP, MySQL以及php连接mysql库组件。 #yum -y install httpd php mysql mysql-server php-mysql 2. 安装apache扩展 #yum -y install httpd-manual mod_ssl mod_perl mod_auth_mysql 3. 安装php的扩展 #yum -y install php-gd php-xml php-mbstring php-ldap php-pear php-xmlrpc 4. 安装MySQL的扩展 #yum -y install mysql-connector-odbc mysql-devel libdbi-dbd-mysql

遇到类似的问题，你可以去后盾人平台看看的哦，里面的东西不错应该能帮你解决一些不明白的问题(❁´◡`❁)*

2. centOS怎样强制卸载PHP以及自定义安装PHP

查看php版本命令：
#php -v
这个命令是删除不干净的
#yum remove php
因为使用这个命令以后再用
#php -v
还是会看到有版本信息的。。。。。
必须强制删除
#rpm -qa|grep php
提示如下
#php-pdo-5.1.6-27.el5_5.3
#php-mysql-5.1.6-27.el5_5.3
#php-xml-5.1.6-27.el5_5.3
#php-cli-5.1.6-27.el5_5.3
#php-common-5.1.6-27.el5_5.3
#php-gd-5.1.6-27.el5_5.3
注意卸载要先卸载没有依赖的
pdo是mysql的依赖项；common是gd的依赖项；
例如：# rpm -e php-pdo-5.1.6-27.el5_5.3
error: Failed dependencies:
php-pdo is needed by (installed) php-mysql-5.1.6-27.el5_5.3.i386
所以正确的卸载顺序是：
# rpm -e php-mysql-5.1.6-27.el5_5.3
# rpm -e php-pdo-5.1.6-27.el5_5.3
# rpm -e php-xml-5.1.6-27.el5_5.3
# rpm -e php-cli-5.1.6-27.el5_5.3
# rpm -e php-gd-5.1.6-27.el5_5.3
# rpm -e php-common-5.1.6-27.el5_5.3
再用# php -v
查看版本信息已经没有提示
安装最新的PHP
wget
tar xzvf php-5.3.6.tar.gz
cd php-5.3.6
./configure --prefix=/usr/local/php如果你还不明白的话，你可以在后盾人看看教材视频，多看看几遍，慢慢的不就会了，如果嫌弃麻烦，你可以直接去后盾网问问那些专家讲师，他们很乐意帮你的，希望能帮到你，给个采纳吧谢谢，

3. centos 如何检测php安装

需要准备的材料分别是：电脑、centos主机，linux连接工具。

1、首先连接上centos主机，进入等待输入指令的linux命令行状态。

4. centos6.5怎么安装php5.5

1.******已安装Nginx******
ps -aux | grep nginx
netstat -anptu | grep 80

2.清除系统中php痕迹：
yum remove php
rm -rvf /etc/php
rm -rvf /etc/php.ini
rm -f /usr/bin/php

3.安装php所需软件包：
tar zxvf autoconf-2.68.tar.gz -C /usr/src
cd /usr/src/autoconf-2.68/
./configure && make && make install
tar zxvf libiconv-1.14.tar.gz -C /usr/src
cd /usr/src/libiconv-1.14/
./configure && make && make install
tar zxvf libmcrypt-2.5.8.tar.gz -C /usr/src
cd /usr/src/libmcrypt-2.5.8/
./configure && make && make install
ldconfig
cd libltdl/
./configure --enable-ltdl-install
make && make install
export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
tar zxvf mhash-0.9.9.9.tar.gz -C /usr/src
cd /usr/src/mhash-0.9.9.9/
./configure && make && make install
tar zxvf mcrypt-2.6.8.tar.gz -C /usr/src
cd /usr/src/mcrypt-2.6.8/
./configure && make && make install

4.加载php动态模块：
ln -s /usr/local/lib/libmcrypt.la /usr/lib64/libmcrypt.la
ln -s /usr/local/lib/libmcrypt.so /usr/lib64/libmcrypt.so
ln -s /usr/local/lib/libmcrypt.so.4 /usr/lib64/libmcrypt.so.4
ln -s /usr/local/lib/libmcrypt.so.4.4.8
/usr/lib64/libmcrypt.so.4.4.8
ln -s /usr/local/lib/libmhash.a /usr/lib64/libmhash.a
ln -s /usr/local/lib/libmhash.la /usr/lib64/libmhash.la
ln -s /usr/local/lib/libmhash.so /usr/lib64/libmhash.so
ln -s /usr/local/lib/libmhash.so.2 /usr/lib64/libmhash.so.2
ln -s /usr/local/lib/libmhash.so.2.0.1
/usr/lib64/libmhash.so.2.0.1
cp -R /usr/lib64/libpng.* /usr/lib/
cp -R /usr/lib64/libjpeg.* /usr/lib/
echo "/lib" >> /etc/ld.so.conf
echo "/usr/lib" >> /etc/ld.so.conf
echo "/usr/lib64" >> /etc/ld.so.conf
echo "/usr/local/lib" >> /etc/ld.so.conf
echo "* soft nproc 65535" >> /etc/security/limits.conf
echo "* hard nproc 65535" >> /etc/security/limits.conf
echo "* soft nofile 65535" >> /etc/security/limits.conf
echo "* hard nofile 65535" >> /etc/security/limits.conf
echo "fs.file-max=65535" >> /etc/sysctl.conf

ldconfig

5.解压、配置、编译、安装php：
tar zxvf php-5.5.25.tar.gz -C /usr/src
cd /usr/src/php-5.5.25/
./configure --prefix=/usr/local/php \
--with-config-file-path=/usr/local/php/etc \
--enable-fpm \
--with-fpm-user=www \
--with-fpm-group=www \
--with-mysql=mysqlnd \
--with-mysqli=mysqlnd \
--with-pdo-mysql=mysqlnd \
--with-iconv-dir \
--with-freetype-dir \
--with-jpeg-dir \
--with-png-dir \
--with-zlib \
--with-libxml-dir=/usr \
--enable-xml \
--enable-opcache \
--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
make ZEND_EXTRA_LIBS='-liconv'
make install

6.链接php可执行文件：
ln -s /usr/local/php/bin/php /usr/bin/php
ln -s /usr/local/php/bin/phpize /usr/bin/phpize
ln -s /usr/local/php/sbin/php-fpm /usr/bin/php-fpm

7.编辑php.ini配置文件：
cp /usr/src/php-5.5.25/php.ini-proction
/usr/local/php/etc/php.ini
ln -s /usr/local/php/etc/php.ini /etc/php.ini
vim /etc/php.ini
[PHP]
engine = On
zend.ze1_compatibility_mode = Off
short_open_tag = On
asp_tags = Off
precision
= 12
y2k_compliance = On
output_buffering = On
zlib.output_compression = Off
implicit_flush = Off
unserialize_callback_func=
serialize_precision = 100
safe_mode = Off
safe_mode_gid = Off
safe_mode_include_dir =
safe_mode_exec_dir =
safe_mode_allowed_env_vars = PHP_
safe_mode_protected_env_vars = LD_LIBRARY_PATH
disable_functions =
passthru,exec,system,chroot,scandir,chgrp,chown,shell_exec,proc_open,proc_get_status,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,stream_socket_server,fsocket
disable_classes =
expose_php = On
error_reporting = E_ALL & ~E_NOTICE
display_errors = On
display_startup_errors = Off
log_errors = Off
log_errors_max_len = 1024
ignore_repeated_errors = Off
ignore_repeated_source = Off
report_memleaks = On
track_errors = Off
variables_order = "EGPCS"
register_globals = Off
register_long_arrays = Off
register_argc_argv = On
auto_globals_jit = On
post_max_size = 50M
magic_quotes_gpc = Off
magic_quotes_runtime = Off
magic_quotes_sybase = Off
auto_prepend_file =
auto_append_file =
default_mimetype = "text/html"
doc_root =
user_dir =
extension_dir =
"/usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/"
enable_dl = On
cgi.fix_pathinfo=0
file_uploads = On
upload_max_filesize = 50M
max_file_uploads = 20
allow_url_fopen = On
allow_url_include = Off
default_socket_timeout = 60
[Date]
date.timezone = PRC
[filter]
[iconv]
[sqlite]
[Pcre]
[Syslog]
define_syslog_variables = Off
[mail function]
SMTP = localhost
smtp_port = 25
[SQL]
sql.safe_mode = Off
[ODBC]
odbc.allow_persistent = On
odbc.check_persistent = On
odbc.max_persistent = -1
odbc.max_links = -1
odbc.defaultlrl = 4096
odbc.defaultbinmode = 1
[MySQL]
mysql.allow_persistent = On
mysql.max_persistent = -1
mysql.max_links = -1
mysql.default_port =
mysql.default_socket =
mysql.default_host =
mysql.default_user =
mysql.default_password =
mysql.connect_timeout = 60
mysql.trace_mode = Off
[MySQLi]
mysqli.max_links = -1
mysqli.default_port = 3306
mysqli.default_socket =
mysqli.default_host =
mysqli.default_user =
mysqli.default_pw =
mysqli.reconnect = Off
[mSQL]
msql.allow_persistent = On
msql.max_persistent = -1
msql.max_links = -1
[OCI8]
[PostgresSQL]
pgsql.allow_persistent = On
pgsql.auto_reset_persistent = Off
pgsql.max_persistent = -1
pgsql.max_links = -1
pgsql.ignore_notice = 0
pgsql.log_notice = 0
[Sybase]
sybase.allow_persistent = On
sybase.max_persistent = -1
sybase.max_links = -1
sybase.min_error_severity = 10
sybase.min_message_severity = 10
sybase.compatability_mode = Off
[Sybase-CT]
sybct.allow_persistent = On
sybct.max_persistent = -1
sybct.max_links = -1
sybct.min_server_severity = 10
sybct.min_client_severity = 10
[bcmath]
bcmath.scale = 0
[browscap]
[Informix]
ifx.default_host =
ifx.default_user =
ifx.default_password =
ifx.allow_persistent = On
ifx.max_persistent = -1
ifx.max_links = -1
ifx.textasvarchar = 0
ifx.byteasvarchar = 0
ifx.charasvarchar = 0
ifx.blobinfile = 0
ifx.nullformat = 0
[Session]
session.save_handler = files
session.use_cookies = 1
session.name = PHPSESSID
session.auto_start = 0
session.cookie_lifetime = 0
session.cookie_path = /
session.cookie_domain =
session.cookie_httponly =
session.serialize_handler = php
session.gc_probability = 1
session.gc_divisor
= 100
session.gc_maxlifetime = 1440
session.bug_compat_42 = 1
session.bug_compat_warn = 1
session.referer_check =
session.entropy_length = 0
session.entropy_file =
session.cache_limiter = nocache
session.cache_expire = 180
session.use_trans_sid = 0
session.hash_function = 0
session.hash_bits_per_character = 4
url_rewriter.tags =
"a=href,area=href,frame=src,input=src,form=,fieldset="
[MSSQL]
mssql.allow_persistent = On
mssql.max_persistent = -1
mssql.max_links = -1
mssql.min_error_severity = 10
mssql.min_message_severity = 10
mssql.compatability_mode = Off
mssql.secure_connection = Off
[Assertion]
[COM]
[mbstring]
[FrontBase]
[gd]
[exif]
[Tidy]
tidy.clean_output = Off
[soap]
soap.wsdl_cache_enabled=1
soap.wsdl_cache_dir="/tmp"
soap.wsdl_cache_ttl=86400
[Zend Optimizer]
zend_extension =
/usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/opcache.so
zend_loader.enable = 1
zend_loader.disable_licensing = 0
zend_loader.obfuscation_level_support = 3

8.编辑php-fpm.conf配置文件：
cp /usr/local/php/etc/php-fpm.conf.default
/usr/local/php/etc/php-fpm.conf
vim /usr/local/php/etc/php-fpm.conf
[global]
pid = /home/php/pid/php-fpm.pid
error_log = /home/php/log/php-fpm_error.log
log_level = notice
[www]
listen = 127.0.0.1:9000
listen.backlog = -1
listen.allowed_clients = 127.0.0.1
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = dynamic
pm.max_children = 10
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 6
request_terminate_timeout = 100
request_slowlog_timeout = 0
slowlog = /home/php/log/slow.log

9.编写php-fpm启动脚本
vim /etc/init.d/php-fpm
#!/bin/sh
# chkconfig:
2345 90
10
#
Description:
Start and
Stop php-fpm
# Provides:

php-fpm
#
Default-Start:
2 3 4 5
#
Default-Stop:
0 1 6
prefix=/usr/local/php
exec_prefix=${prefix}
php_fpm_BIN=${prefix}/sbin/php-fpm
php_fpm_CONF=${prefix}/etc/php-fpm.conf
php_fpm_PID=/home/php/pid/php-fpm.pid
php_opts="--fpm-config $php_fpm_CONF --pid $php_fpm_PID"
wait_for_pid () {
try=0
while test $try -lt 35 ; do
case "$1" in
'created')
if [ -f "$2" ] ; then
try=''
break
fi
;;
'removed')
if [ ! -f "$2" ] ; then
try=''
break
fi
;;
esac
echo -n .
try=`expr $try + 1`
sleep 1
done
}
case "$1" in
start)
echo -n "Starting php-fpm..."
$php_fpm_BIN --daemonize $php_opts
if [ "$?" != 0 ] ; then
echo " failed"
exit 1
fi
wait_for_pid created $php_fpm_PID
if [ -n "$try" ] ; then
echo " failed"
exit 1
else
echo " done"
fi
;;
stop)
echo -n "Stoping php-fpm..."
if [ ! -r $php_fpm_PID ] ; then
echo "warning, no pid file found - php-fpm is not running ?"
exit 1
fi
kill -QUIT `cat $php_fpm_PID`
wait_for_pid removed $php_fpm_PID
if [ -n "$try" ] ; then
echo " failed. Use force-quit"
exit 1
else
echo " done"
fi
;;
force-quit)
echo -n "Terminating php-fpm "
if [ ! -r $php_fpm_PID ] ; then
echo "warning, no pid file found - php-fpm is not running ?"
exit 1
fi
kill -TERM `cat $php_fpm_PID`
wait_for_pid removed $php_fpm_PID
if [ -n "$try" ] ; then
echo " failed"
exit 1
else
echo " done"
fi
;;
restart)
$0 stop
$0 start
;;
reload)
echo -n "Reload service php-fpm "
if [ ! -r $php_fpm_PID ] ; then
echo "warning, no pid file found - php-fpm is not running ?"
exit 1
fi
kill -USR2 `cat $php_fpm_PID`
echo " done"
;;
*)
echo "Usage: $0 {start|stop|force-quit|restart|reload}"
exit 1
;;
esac

10.创建目录并修改权限，重启nginx服务：
mkdir -p /home/php/log
mkdir -p /home/php/pid
chown -R www:www /home/php/log
chown -R www:www /home/php/pid
service nginx restart

11.添加php-fpm系统服务：
chmod +x /etc/init.d/php-fpm
chkconfig --add php-fpm
chkconfig --level 2345 php-fpm on
chkconfig --list | grep php-fpm

12.启动php-fpm服务：
service php-fpm start
ps -aux | grep php-fpm
netstat -anptu | grep 9000

13.配置php测试页：
vim /home/www/html/phpinfo.php

5. 阿里云默认centos7上怎么安装php

首先更新系统软件</str>
$ yum update
安装nginx</str></str>
1.安装nginx源
$ yum localinstall http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm2.安装nginx
$ yum install nginx
3.启动nginx
$ service nginx start
Redirecting to /bin/systemctl start nginx.service4.访问http://你的ip/
如果成功安装会出来nginx默认的欢迎界面
安装MySQL5.7.*
</str>
1.安装mysql源</str>
$ yum localinstall http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm2.安装mysql
$ yum install mysql-community-server
确认一下mysql的版本，有时可能会提示mysql5.63.安装mysql的开发包，以后会有用
$ yum install mysql-community-devel
4.启动mysql
$ service mysqld start
Redirecting to /bin/systemctl start mysqld.service5.查看mysql启动状态
$ service mysqld status
出现pid
证明启动成功
6.获取mysql默认生成的密码
$ grep 'temporary password' /var/log/mysqld.log2015-12-05T05:41:09.104758Z 1 [Note] A temporary password is generated for root@localhost: %G1Rgns!dD!v</str>
加粗的就是生成的密码
7.换成自己的密码
$ mysql -uroot -p
Enter password:输入上面的密码
成功输入后进入一下步，这里你估计会输入 好几次才进去8. 更换密码
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';这个密码一定要足够复杂，不然会不让你改，提示密码不合法;9.退出mysql;
mysql> quit;
10.用新密码再登录，试一下新密码
$ mysql -uroot -p
Enter password:输入你的新密码
11.确认密码正确后，退出mysql;
mysql> quit;
编译安装php7.0.0
</str>
</str>
1.下载php7源码包</str>
$ cd /root & wget -O php7.tar.gz http://cn2.php.net/get/php-7.0.1.tar.gz/from/this/mirror2.解压源码包</str>
$ tar -xvf php7.tar.gz
3.</str>
$ cd php-7.0.1
4.安装php依赖包</str>
</str>
$ yum install libxml2 libxml2-devel openssl openssl-devel bzip2 bzip2-devel libcurl libcurl-devel libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel gmp gmp-devel libmcrypt libmcrypt-devel readline readline-devel libxslt libxslt-devel5.编译配置，这一步我们会遇到很多configure error，我们一一解决，基本都是相关软件开发包没有安装导致</str>
</str>
$ ./configure \
--prefix=/usr/local/php \
--with-config-file-path=/etc \
--enable-fpm \
--with-fpm-user=nginx \
--with-fpm-group=nginx \
--enable-inline-optimization \
--disable-debug \
--disable-rpath \
--enable-shared \
--enable-soap \
--with-libxml-dir \
--with-xmlrpc \
--with-openssl \
--with-mcrypt \
--with-mhash \
--with-pcre-regex \
--with-sqlite3 \
--with-zlib \
--enable-bcmath \
--with-iconv \
--with-bz2 \
--enable-calendar \
--with-curl \
--with-cdb \
--enable-dom \
--enable-exif \
--enable-fileinfo \
--enable-filter \
--with-pcre-dir \
--enable-ftp \
--with-gd \
--with-openssl-dir \
--with-jpeg-dir \
--with-png-dir \
--with-zlib-dir \
--with-freetype-dir \
--enable-gd-native-ttf \
--enable-gd-jis-conv \
--with-gettext \
--with-gmp \
--with-mhash \
--enable-json \
--enable-mbstring \
--enable-mbregex \
--enable-mbregex-backtrack \
--with-libmbfl \
--with-onig \
--enable-pdo \
--with-mysqli=mysqlnd \
--with-pdo-mysql=mysqlnd \
--with-zlib-dir \
--with-pdo-sqlite \
--with-readline \
--enable-session \
--enable-shmop \
--enable-simplexml \
--enable-sockets \
--enable-sysvmsg \
--enable-sysvsem \
--enable-sysvshm \
--enable-wddx \
--with-libxml-dir \
--with-xsl \
--enable-zip \
--enable-mysqlnd-compression-support \
--with-pear \
--enable-opcache
configure error:
1.configure: error: xml2-config not found. Please check your libxml2 installation.
解决：
$ yum install libxml2 libxml2-devel
2.configure: error: Cannot find OpenSSL's <evp.h>
解决：
$ yum install openssl openssl-devel
3.configure: error: Please reinstall the BZip2 distribution解决：
$ yum install bzip2 bzip2-devel
4.configure: error: Please reinstall the libcurl distribution - easy.h should be in <curl-dir>/include/curl/解决：
$ yum install libcurl libcurl-devel
5.If configure fails try --with-webp-dir=<DIR> configure: error: jpeglib.h not found.
解决：
$ yum install libjpeg libjpeg-devel
6.If configure fails try --with-webp-dir=<DIR>
checking for jpeg_read_header in -ljpeg... yesconfigure: error: png.h not found.
解决：
$ yum install libpng libpng-devel
7.If configure fails try --with-webp-dir=<DIR>
checking for jpeg_read_header in -ljpeg... yeschecking for png_write_image in -lpng... yesIf configure fails try --with-xpm-dir=<DIR>
configure: error: freetype-config not found.
解决：
$ yum install freetype freetype-devel
8.configure: error: Unable to locate gmp.h解决：
$ yum install gmp gmp-devel
9.configure: error: mcrypt.h not found. Please reinstall libmcrypt.
解决：
$ yum install libmcrypt libmcrypt-devel
10.configure: error: Please reinstall readline - I cannot find readline.h解决：
$ yum install readline readline-devel
11.configure: error: xslt-config not found. Please reinstall the libxslt >= 1.1.0 distribution解决：
$ yum install libxslt libxslt-devel
6.编译与安装
$ make && make install
这里要make好久，要耐心一下
7.添加 PHP 命令到环境变量
$ vim /etc/profile
在末尾加入
PATH=$PATH:/usr/local/php/bin
export PATH
要使改动立即生效执行
$ ./etc/profile
或
$ source /etc/profile
查看环境变量
$ echo $PATH
查看php版本
$ php -v
8.配置php-fpm
$ cp php.ini-proction /etc/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 sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm$ chmod +x /etc/init.d/php-fpm
9.启动php-fpm
$ /etc/init.d/php-fpm start
配置nginx虚拟机,绑定域名</str>
1.
</str>
$ vim /etc/nginx/conf.d/php7.thinkcmf.com.conf这里可以把php7.thinkcmf.com.conf改成自己的域名把下面的内容复制到php7.thinkcmf.com.conf里server{
listen 80;
server_name php7.thinkcmf.com;
root /var/www/html/php7.thinkcmf.com; # 该项要修改为你准备存放相关网页的路径location / {
index index.php index.html index.htm;
#如果请求既不是一个文件，也不是一个目录，则执行一下重写规则if (!-e $request_filename)
{
#地址作为将参数rewrite到index.php上。
rewrite ^/(.*)$ /index.php/$1;
#若是子目录则使用下面这句，将subdir改成目录名称即可。
#rewrite ^/subdir/(.*)$ /subdir/index.php/$1;}
}
#proxy the php scripts to php-fpm
location ~ \.php {
include fastcgi_params;
##pathinfo支持start
#定义变量 $path_info ，用于存放pathinfo信息set $path_info "";
#定义变量 $real_script_name，用于存放真实地址set $real_script_name $fastcgi_script_name;#如果地址与引号内的正则表达式匹配
if ($fastcgi_script_name ~ "^(.+?\.php)(/.+)$") {#将文件地址赋值给变量 $real_script_name
set $real_script_name $1;
#将文件地址后的参数赋值给变量 $path_info
set $path_info $2;
}
#配置fastcgi的一些参数
fastcgi_param SCRIPT_FILENAME $document_root$real_script_name;fastcgi_param SCRIPT_NAME $real_script_name;fastcgi_param PATH_INFO $path_info;
###pathinfo支持end
fastcgi_intercept_errors on;
fastcgi_pass 127.0.0.1:9000;
}
}
2.重启nginx
$ service nginx reload
3.
$ vim /var/www/html/php7.thinkcmf.com/index.php</str>
把下面的代码复制到这个文件 里
<?php
phpinfo();
4.查看访问http://php7.thinkcmf.com

6. centos7 已有php怎么安装

检查是否以前安装过php ，将其删除
yum remove php* php-common
rpm 安装 Php7 相应的 yum源
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

如果出现下面错误
yum -y install epel-release

4
yum install php70w

7. centos下安装php

yum install -y php
## 这个只安装PHP
## 建议安装运行库及MySQL的支持
yum install -y php php-devel php-mysql
## 如果你的系统是CentOS 5.6那么上面这条命令安装的是PHP 5.1,要安装 PHP 5.3则执行下面的命令:
yum install -y php53 php53-devel php53-mysql

8. Centos7怎么做安装PHP7最新版

直接下载PHP7.0.2的安装包解压，编译，安装:
下载php7,并解压
$ cd /usr/src/
$ wget
#解压
$ tar -xzxvf php-7.0.2.tar.gz
$ cd php-7.0.2
解压完后先不要编译，请检查是否安装了gcc ,没有的话执行yum install gcc
检查是否安装了libxml2 ,没有的话执行yum install libxml2
检查是否安装了libxml2-devel,没有的话执行yum install libxml2-devel
注：因为改为用nginx了，所以编译参数中的--with-apxs2=/usr/bin/apxs去掉了，如果要配置apache用，安装PHP前，请先安装apache。

9. 阿里云上的centos 7.2怎么yum安装php 5.6

因之前通过网易的 centos 镜像，将阿里云的 centos 升级到最新版了，乘自己的项目尚未开始正式开发，遂将所有的相应环境都升级到最高。
查看 centos 版本：
[root@iZ23d ~]# cat /etc/centos-release
CentOS Linux release 7.2.1511 (Core)
1、删除之前的 php 版本：
[root@iZ23d ~]# yum remove php* php-common
Loaded plugins: langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
No Match for argument: php-5.4.16
No Match for argument: php-5.4.16.tar.gz
No Match for argument: php-7.0.1RC1
No Match for argument: php-7.0.1RC1.tar.gz
No Match for argument: phpMyAdmin-4.4.0.tar.gz
No Match for argument: php-common
No Packages marked for removal
2、rpm 安装 Php7 相应的 yum源：
[root@iZ23d ~]# rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
Retrieving https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
warning: /var/tmp/rpm-tmp.LhJKKR: Header V4 RSA/SHA1 Signature, key ID 62e74ca5: NOKEY
Preparing... ################################# [100%]
package webtatic-release-7-3.noarch is already installed
3、 直接yum安装php7：
[root@iZ23d ~]# yum install php70w
Loaded plugins: langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Resolving Dependencies
--> Running transaction check
。。。 【省略】
Warning: RPMDB altered outside of yum.
Installing : php70w-common-7.0.0-1.w7.x86_64 1/3
Installing : php70w-cli-7.0.0-1.w7.x86_64 2/3
Installing : php70w-7.0.0-1.w7.x86_64 3/3
Verifying : php70w-7.0.0-1.w7.x86_64 1/3
Verifying : php70w-common-7.0.0-1.w7.x86_64 2/3
Verifying : php70w-cli-7.0.0-1.w7.x86_64 3/3
Installed:
php70w.x86_64 0:7.0.0-1.w7
Dependency Installed:
php70w-cli.x86_64 0:7.0.0-1.w7 php70w-common.x86_64 0:7.0.0-1.w7
Complete!
4、检查 php 版本：
[root@iZ23d ~]# php -v
PHP 7.0.0 (cli) (built: Dec 2 2015 20:42:32) ( NTS )
Copyright (c) 1997-2015 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2015 Zend Technologies
[root@iZ23d2e6hoqZ ~]#
以上显示安装成功！
5、重启 Apache，查看 phpinfo :
[root@iZ23d ~]# systemctl restart httpd.service
检查phpinfo:
PHP Version 7.0.0
SystemLinux iZ23d 3.10.0-229.11.1.el7.x86_64 #1 SMP Thu Aug 6 01:06:18 UTC 2015 x86_64
Build DateDec 2 2015 20:43:38
Server APIApache 2.0 Handler
Virtual Directory Supportdisabled
Configuration File (php.ini) Path/etc
Loaded Configuration File/etc/php.ini
Scan this dir for additional .ini files/etc/php.d
Additional .ini files parsed/etc/php.d/bz2.ini, /etc/php.d/calendar.ini, /etc/php.d/ctype.ini, /etc/php.d/curl.ini, /etc/php.d/exif.ini, /etc/php.d/fileinfo.ini, /etc/php.d/ftp.ini, /etc/php.d/gettext.ini, /etc/php.d/gmp.ini, /etc/php.d/iconv.ini, /etc/php.d/json.ini, /etc/php.d/phar.ini, /etc/php.d/shmop.ini, /etc/php.d/simplexml.ini, /etc/php.d/sockets.ini, /etc/php.d/tokenizer.ini, /etc/php.d/xml.ini, /etc/php.d/zip.ini
PHP API20151012
PHP Extension20151012
Zend Extension320151012
Zend Extension BuildAPI320151012,NTS
PHP Extension BuildAPI20151012,NTS
Debug Buildno
Thread Safetydisabled
Zend Signal Handlingdisabled
Zend Memory Managerenabled
Zend Multibyte Supportdisabled
IPv6 Supportenabled
DTrace Supportenabled
Registered PHP Streamshttps, ftps, compress.zlib, php, file, glob, data, http, ftp, compress.bzip2, phar, zip
Registered Stream Socket Transportstcp, udp, unix, udg, ssl, sslv3, sslv2, tls, tlsv1.0, tlsv1.1, tlsv1.2
Registered Stream Filterszlib.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk, bzip2.*, convert.iconv.*
This program makes use of the Zend Scripting Language Engine:
Zend Engine v3.0.0, Copyright (c) 1998-2015 Zend Technologies
Configuration
apache2handler
Apache VersionApache/2.4.6 (CentOS)
Apache API Version20120211
Server [email protected]
Hostname:Portxxxx.xxxxx.xxx:0
User/Groupapache(48)/48
Max RequestsPer Child: 0 - Keep Alive: on - Max Per Connection: 100
TimeoutsConnection: 60 - Keep-Alive: 15
Virtual ServerYes
Server Root/etc/httpd
Loaded Molescore mod_so http_core mod_access_compat mod_actions mod_alias mod_allowmethods mod_auth_basic mod_auth_digest mod_authn_anon mod_authn_core mod_authn_dbd mod_authn_dbm mod_authn_file mod_authn_socache mod_authz_core mod_authz_dbd mod_authz_dbm mod_authz_groupfile mod_authz_host mod_authz_owner mod_authz_user mod_autoindex mod_cache mod_cache_disk mod_data mod_dbd mod_deflate mod_dir mod_mpio mod_echo mod_env mod_expires mod_ext_filter mod_filter mod_headers mod_include mod_info mod_log_config mod_logio mod_mime_magic mod_mime mod_negotiation mod_remoteip mod_reqtimeout mod_rewrite mod_setenvif mod_slotmem_plain mod_slotmem_shm mod_socache_dbm mod_socache_memcache mod_socache_shmcb mod_status mod_substitute mod_suexec mod_unique_id mod_unixd mod_userdir mod_version mod_vhost_alias mod_dav mod_dav_fs mod_dav_lock mod_lua prefork mod_proxy mod_lbmethod_bybusyness mod_lbmethod_byrequests mod_lbmethod_bytraffic mod_lbmethod_heartbeat mod_proxy_ajp mod_proxy_balancer mod_proxy_connect mod_proxy_express mod_proxy_fcgi mod_proxy_fdpass mod_proxy_ftp mod_proxy_http mod_proxy_scgi mod_proxy_wstunnel mod_ssl mod_systemd mod_cgi mod_perl mod_php7
以上显示 php7 安装成功！

10. CentOS怎样强制卸载PHP以及自定义安装PHP

查看php版本命令：

#php -v

这个命令是删除不干净的

#yum remove php

因为使用这个命令以后再用

#php -v

还是会看到有版本信息的。。。。。

必须强制删除

#rpm -qa|grep php

提示如下

#php-pdo-5.1.6-27.el5_5.3
#php-mysql-5.1.6-27.el5_5.3
#php-xml-5.1.6-27.el5_5.3
#php-cli-5.1.6-27.el5_5.3
#php-common-5.1.6-27.el5_5.3
#php-gd-5.1.6-27.el5_5.3

注意卸载要先卸载没有依赖的

pdo是mysql的依赖项；common是gd的依赖项；
例如：# rpm -e php-pdo-5.1.6-27.el5_5.3
error: Failed dependencies:
php-pdo is needed by (installed) php-mysql-5.1.6-27.el5_5.3.i386

所以正确的卸载顺序是：
# rpm -e php-mysql-5.1.6-27.el5_5.3
# rpm -e php-pdo-5.1.6-27.el5_5.3
# rpm -e php-xml-5.1.6-27.el5_5.3
# rpm -e php-cli-5.1.6-27.el5_5.3
# rpm -e php-gd-5.1.6-27.el5_5.3
# rpm -e php-common-5.1.6-27.el5_5.3

再用# php -v

查看版本信息已经没有提示

安装最新的PHP

wget
tar xzvf php-5.3.6.tar.gz

cd php-5.3.6

./configure --prefix=/usr/local/php