本文中的操作系统：CentOS Linux release 7.7.1908 (Core)
前言：
很多情况下，搭建完按成了lnmp之后（无论是一步一步从头到尾一个一个软件进行编译安装，还是直接使用网上提供的一键安装的方式），事后你要编译安装一个php扩展的时候，发现需要用到php-config这个可执行文件，但是。。你用遍了which、whereis、find。。。等各种命令。。却发现系统中居然没有该文件！！不慌。。本文教你安装上。
1、搜索yum源中是否存在php7.0或php7.1或php7.2相关的软件包
[root@ecs-abcf ~]# yum search php7 Loaded plugins: fastestmirror Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast Determining fastest mirrors Warning: No matches found for: php7 No matches found [root@iZm5e8vp7zjro140az4o97Z ~]#
尴尬。。yum源中木有啊。。
2、更换yum源
# yum install epel-release # rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
3、再次搜索yum源中否存在php7.0或php7.1或php7.2相关的软件包
[root@ecs-abcf ~]# yum search php7 Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.neusoft.edu.cn * epel: mirrors.njupt.edu.cn * extras: ap.stykers.moe * updates: mirrors.huaweicloud.com * webtatic: uk.repo.webtatic.com ====================================================================================== N/S matched: php7 ====================================================================================== mod_php71w.x86_64 : PHP module for the Apache HTTP Server mod_php72w.x86_64 : PHP module for the Apache HTTP Server php70w.x86_64 : PHP scripting language for creating dynamic web sites php70w-bcmath.x86_64 : A module for PHP applications for using the bcmath library php70w-cli.x86_64 : Command-line interface for PHP php70w-common.x86_64 : Common files for PHP php70w-dba.x86_64 : A database abstraction layer module for PHP applications php70w-devel.x86_64 : Files needed for building PHP extensions php70w-embedded.x86_64 : PHP library for embedding in applications php70w-enchant.x86_64 : Enchant spelling extension for PHP applications php70w-fpm.x86_64 : PHP FastCGI Process Manager php70w-gd.x86_64 : A module for PHP applications for using the gd graphics library php70w-imap.x86_64 : A module for PHP applications that use IMAP php70w-interbase.x86_64 : A module for PHP applications that use Interbase/Firebird databases php70w-intl.x86_64 : Internationalization extension for PHP applications php70w-ldap.x86_64 : A module for PHP applications that use LDAP php70w-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling php70w-mcrypt.x86_64 : Standard PHP module provides mcrypt library support php70w-mysql.x86_64 : A module for PHP applications that use MySQL databases php70w-mysqlnd.x86_64 : A module for PHP applications that use MySQL databases php70w-odbc.x86_64 : A module for PHP applications that use ODBC databases php70w-opcache.x86_64 : An opcode cache Zend extension php70w-pdo.x86_64 : A database access abstraction module for PHP applications php70w-pdo_dblib.x86_64 : MSSQL database module for PHP php70w-pear.noarch : PHP Extension and Application Repository framework php70w-pecl-apcu.x86_64 : APCu - APC User Cache php70w-pecl-apcu-devel.x86_64 : APCu developer files (header) php70w-pecl-geoip.x86_64 : Extension to map IP addresses to geographic places php70w-pecl-igbinary.x86_64 : Replacement for the standard PHP serializer php70w-pecl-igbinary-devel.x86_64 : Igbinary developer files (header) php70w-pecl-imagick.x86_64 : Provides a wrapper to the ImageMagick library php70w-pecl-imagick-devel.x86_64 : Imagick developer files (header) php70w-pecl-memcached.x86_64 : Extension to work with the Memcached caching daemon php70w-pecl-mongodb.x86_64 : PECL package MongoDB driver php70w-pecl-redis.x86_64 : Extension for communicating with the Redis key-value store php70w-pecl-xdebug.x86_64 : PECL package for debugging PHP scripts php70w-pgsql.x86_64 : A PostgreSQL database module for PHP php70w-phpdbg.x86_64 : Interactive PHP debugger php70w-process.x86_64 : Modules for PHP script using system process interfaces php70w-pspell.x86_64 : A module for PHP applications for using pspell interfaces php70w-recode.x86_64 : A module for PHP applications for using the recode library php70w-snmp.x86_64 : A module for PHP applications that query SNMP-managed devices php70w-soap.x86_64 : A module for PHP applications that use the SOAP protocol php70w-tidy.x86_64 : Standard PHP module provides tidy library support php70w-xml.x86_64 : A module for PHP applications which use XML php70w-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol php71w-bcmath.x86_64 : A module for PHP applications for using the bcmath library php71w-cli.x86_64 : Command-line interface for PHP php71w-common.x86_64 : Common files for PHP php71w-dba.x86_64 : A database abstraction layer module for PHP applications php71w-devel.x86_64 : Files needed for building PHP extensions php71w-embedded.x86_64 : PHP library for embedding in applications php71w-enchant.x86_64 : Enchant spelling extension for PHP applications php71w-fpm.x86_64 : PHP FastCGI Process Manager php71w-gd.x86_64 : A module for PHP applications for using the gd graphics library php71w-imap.x86_64 : A module for PHP applications that use IMAP php71w-interbase.x86_64 : A module for PHP applications that use Interbase/Firebird databases php71w-intl.x86_64 : Internationalization extension for PHP applications php71w-ldap.x86_64 : A module for PHP applications that use LDAP php71w-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling php71w-mcrypt.x86_64 : Standard PHP module provides mcrypt library support php71w-mysql.x86_64 : A module for PHP applications that use MySQL databases php71w-mysqlnd.x86_64 : A module for PHP applications that use MySQL databases php71w-odbc.x86_64 : A module for PHP applications that use ODBC databases php71w-opcache.x86_64 : An opcode cache Zend extension php71w-pdo.x86_64 : A database access abstraction module for PHP applications php71w-pdo_dblib.x86_64 : MSSQL database module for PHP php71w-pear.noarch : PHP Extension and Application Repository framework php71w-pecl-apcu.x86_64 : APCu - APC User Cache php71w-pecl-apcu-devel.x86_64 : APCu developer files (header) php71w-pecl-geoip.x86_64 : Extension to map IP addresses to geographic places php71w-pecl-igbinary.x86_64 : Replacement for the standard PHP serializer php71w-pecl-igbinary-devel.x86_64 : Igbinary developer files (header) php71w-pecl-imagick.x86_64 : Provides a wrapper to the ImageMagick library php71w-pecl-imagick-devel.x86_64 : Imagick developer files (header) php71w-pecl-memcached.x86_64 : Extension to work with the Memcached caching daemon php71w-pecl-mongodb.x86_64 : PECL package MongoDB driver php71w-pecl-redis.x86_64 : Extension for communicating with the Redis key-value store php71w-pecl-xdebug.x86_64 : PECL package for debugging PHP scripts php71w-pgsql.x86_64 : A PostgreSQL database module for PHP php71w-phpdbg.x86_64 : Interactive PHP debugger php71w-process.x86_64 : Modules for PHP script using system process interfaces php71w-pspell.x86_64 : A module for PHP applications for using pspell interfaces php71w-recode.x86_64 : A module for PHP applications for using the recode library php71w-snmp.x86_64 : A module for PHP applications that query SNMP-managed devices php71w-soap.x86_64 : A module for PHP applications that use the SOAP protocol php71w-tidy.x86_64 : Standard PHP module provides tidy library support php71w-xml.x86_64 : A module for PHP applications which use XML php71w-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol php72w-bcmath.x86_64 : A module for PHP applications for using the bcmath library php72w-cli.x86_64 : Command-line interface for PHP php72w-common.x86_64 : Common files for PHP php72w-dba.x86_64 : A database abstraction layer module for PHP applications php72w-devel.x86_64 : Files needed for building PHP extensions php72w-embedded.x86_64 : PHP library for embedding in applications php72w-enchant.x86_64 : Enchant spelling extension for PHP applications php72w-fpm.x86_64 : PHP FastCGI Process Manager php72w-gd.x86_64 : A module for PHP applications for using the gd graphics library php72w-imap.x86_64 : A module for PHP applications that use IMAP php72w-interbase.x86_64 : A module for PHP applications that use Interbase/Firebird databases php72w-intl.x86_64 : Internationalization extension for PHP applications php72w-ldap.x86_64 : A module for PHP applications that use LDAP php72w-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling php72w-mysql.x86_64 : A module for PHP applications that use MySQL databases php72w-mysqlnd.x86_64 : A module for PHP applications that use MySQL databases php72w-odbc.x86_64 : A module for PHP applications that use ODBC databases php72w-opcache.x86_64 : An opcode cache Zend extension php72w-pdo.x86_64 : A database access abstraction module for PHP applications php72w-pdo_dblib.x86_64 : MSSQL database module for PHP php72w-pear.noarch : PHP Extension and Application Repository framework php72w-pecl-apcu.x86_64 : APCu - APC User Cache php72w-pecl-apcu-devel.x86_64 : APCu developer files (header) php72w-pecl-geoip.x86_64 : Extension to map IP addresses to geographic places php72w-pecl-igbinary.x86_64 : Replacement for the standard PHP serializer php72w-pecl-igbinary-devel.x86_64 : Igbinary developer files (header) php72w-pecl-imagick.x86_64 : Provides a wrapper to the ImageMagick library php72w-pecl-imagick-devel.x86_64 : Imagick developer files (header) php72w-pecl-libsodium.x86_64 : Wrapper for the Sodium cryptographic library php72w-pecl-memcached.x86_64 : Extension to work with the Memcached caching daemon php72w-pecl-mongodb.x86_64 : PECL package MongoDB driver php72w-pecl-redis.x86_64 : Extension for communicating with the Redis key-value store php72w-pecl-xdebug.x86_64 : PECL package for debugging PHP scripts php72w-pgsql.x86_64 : A PostgreSQL database module for PHP php72w-phpdbg.x86_64 : Interactive PHP debugger php72w-process.x86_64 : Modules for PHP script using system process interfaces php72w-pspell.x86_64 : A module for PHP applications for using pspell interfaces php72w-recode.x86_64 : A module for PHP applications for using the recode library php72w-snmp.x86_64 : A module for PHP applications that query SNMP-managed devices php72w-soap.x86_64 : A module for PHP applications that use the SOAP protocol php72w-sodium.x86_64 : Wrapper for the Sodium cryptographic library php72w-tidy.x86_64 : Standard PHP module provides tidy library support php72w-xml.x86_64 : A module for PHP applications which use XML php72w-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol Name and summary matches only, use "search all" for everything. [root@ecs-abcf ~]#
功夫不负有心人。。搜索到啦。。
4、安装对应版本的php-devel（这里以php7.2举例）
yum -y install php72w-devel #安装完毕之后就有php-config文件了,有了这个文件就可以进行编译安装php相关扩展啦。
4.1、安装完成之后，可以使用which查看php-config文件所在的路径
[root@ecs-abcf ~]# which php-config /usr/bin/php-config [root@ecs-abcf ~]#
5、也可以直接安装php（这里以php7.2举例）
yum -y install php72w
5.1、查看php版本
php -v
5.2、配置文件所在路径
php.ini /etc/php.ini php加载ini文件 /etc/php.d/*.ini php-fpm.conf /etc/php-fpm.conf php-fpm.pid /var/run/php-fpm/php-fpm.pid php-fpm启动 php-fpm
平坦的路好走 但泥泞的路上才能留下脚印 -->玄色【哑舍】
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