centos php無法啟動的解決辦法：1、安裝擴展包并更新系統；2、安裝php依賴組件；3、下載php安裝包并解壓；4、進入解壓目錄并開始編譯；5、更新依賴庫；6、進行安裝；7、進行文件配置；8、添加權限即可。
本文操作環境：centOS6.8系統、php7.2.1版，DELL G3電腦
centOS安裝PHP后，php-fpm啟動失敗的解決
? ? 在centOS6.8上安裝php，出各種問題，光是gcc的版本太低，升級gcc這個，就讓我氣了兩天，翻遍了幾乎所有相關博客總算解決了。還有mysql安裝也沒少踩坑，所以大家還是盡量用centOS7吧，少生氣能多活幾年呢。。。
? ? 現在說一下centOS6.8上編譯安裝php7.2.1吧。
1，安裝擴展包并更新系統(我在根目錄下開始的)：
yum?install?epel-release?-y yum?update
2,安裝php依賴組件（一段全復制上去，其實掠過也可能沒關系）：
立即學習“PHP免費學習筆記（深入）”；
yum?-y?install?wget?vim?pcre?pcre-devel?openssl?openssl-devel?libicu-devel?gcc?gcc-c++?autoconf?libjpeg?libjpeg-devel?libpng?libpng-devel?freetype?freetype-devel?libxml2?libxml2-devel?zlib?zlib-devel?glibc?glibc-devel?glib2?glib2-devel?ncurses?ncurses-devel?curl?curl-devel?krb5-devel?libidn?libidn-devel?openldap?openldap-devel?nss_ldap?jemalloc-devel?cmake?boost-devel?bison?automake?libevent?libevent-devel?gd?gd-devel?libtool*?libmcrypt?libmcrypt-devel?mcrypt?mhash?libxslt?libxslt-devel?readline?readline-devel?gmp?gmp-devel?libcurl?libcurl-devel?openjpeg-devel
3，下載php安裝包并解壓：
wget?http://am1.php.net/distributions/php-7.2.1.tar.gz tar?xvf?php-7.2.1.tar.gz
4，進入解壓目錄并開始編譯(編譯千萬不能省，運行出錯了就不能make了，這是我選出來的最靠譜可行的編譯了)：
cd?/php-7.2.1 ./configure?--prefix=/usr/local/php7?--with-config-file-path=/usr/local/php7/etc?--with-mcrypt=/usr/include?--with-mysql=mysqlnd?--with-mysqli=mysqlnd?--with-pdo-mysql=mysqlnd?--with-gd?--with-iconv?--with-zlib?--enable-xml?--enable-bcmath?--enable-shmop?--enable-sysvsem?--enable-inline-optimization?--enable-mbregex?--enable-fpm?--enable-mbstring?--enable-ftp?--enable-gd-native-ttf?--with-openssl?--enable-pcntl?--enable-sockets?--with-xmlrpc?--enable-zip?--enable-soap?--without-pear?--with-gettext?--enable-session?--with-curl?--with-jpeg-dir?--with-freetype-dir?--enable-opcache
5，為了安全保險的給make出來，先更新依賴庫以防萬一：
yum?-y?install?libjpeg?libjpeg-devel?libpng?libpng-devel?freetype?freetype-devel?libxml2?libxml2-devel?mysql?pcre-devel
6，安裝：
make make?install
7,關于配置：
cp php.ini-development /usr/local/php7/etc/php.ini cp /usr/local/php7/etc/php-fpm.conf.default /usr/local/php7/etc/php-fpm.conf cp /usr/local/php7/etc/php-fpm.d/www.conf.default /usr/local/php7/etc/php-fpm.d/www.conf
8，加個權限：
chmod?+x?/etc/init.d/php-fpm
現在試一下，/etc/init.d/php-fpm start
如果php啟動成功了，那你很幸福；如果失敗了，接著往下看。
大概出現的是下圖這個情況吧？
再試一下運行提示的命令，出的問題是ERROR:FPM initialization failed.如下圖：
所以出問題的是php-fpm，機智如我，把我另一個虛擬機（centOS7）上的php-fpm給換上去了，只需要把php的安裝根目錄按照自己的情況改一下就成了（就是這一行：prefix=/usr/local/php）。現在我就無私的把我的php-fpm文件奉獻出來。
#!?/bin/sh ###?BEGIN?INIT?INFO?#?Provides:??????????php-fpm?#?Required-Start:????$remote_fs?$network?#?Required-Stop:?????$remote_fs?$network?#?Default-Start:?????2?3?4?5?#?Default-Stop:??????0?1?6?#?Short-Description:?starts?php-fpm?#?Description:???????starts?the?PHP?FastCGI?Process?Manager?daemon?###?END?INIT?INFO prefix=/usr/local/php?exec_prefix=${prefix} php_fpm_BIN=${exec_prefix}/sbin/php-fpm?php_fpm_CONF=${prefix}/etc/php-fpm.conf?php_fpm_PID=${prefix}/var/run/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?"Gracefully?shutting?down?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?????;; ????status)?????????if?[?!?-r?$php_fpm_PID?]?;?then?????????????echo?"php-fpm?is?stopped"?????????????exit?0?????????fi ????????PID=`cat?$php_fpm_PID`?????????if?ps?-p?$PID?|?grep?-q?$PID;?then?????????????echo?"php-fpm?(pid?$PID)?is?running..."?????????else?????????????echo?"php-fpm?dead?but?pid?file?exists"?????????fi?????;; ????force-quit)?????????echo?-n?"Terminating?php-fpm?" ????????if?[?!?-r?$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?$php_fpm_PID` ????????echo?"?done"?????;; ????configtest)?????????$php_fpm_BIN?-t?????;; ????*)?????????echo?"Usage:?$0?{start|stop|force-quit|restart|reload|status|configtest}"?????????exit?1?????;; esac
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