this：指向对象self：指向类pant指向父类
php源码安装#centos#yuminstall-ygccgcc-c++makezlibzlib-develpcpc-devellibjpeglibjpeg-devellibpnglibpng-develfetypefetype-devellibxmllibxml-develglibcglibc-develglibglib-develbzipbzip-develncursesncurses-develcurlcurl-develefsprogsefsprogs-develkrb5krb5-developensslopenssl-developenldapopenldap-develnss_ldapopenldap-clientsopenldap-serversyuminstalllibxml-devel.x86_64yuminstallopenssl.x86_64openssl-devel.x86_64-yyuminstalllibcurl.x86_64libcurl-devel.x86_64-yyuminstalllibjpeg.x86_64libpng.x86_64fetype.x86_64libjpeg-devel.x86_64libpng-devel.x86_64fetype-devel.x86_64-yyuminstalllibjpeg.x86_64libpngfetypelibjpeg-devellibpng-develfetype-devel-yyuminstalllibmcryptlibmcrypt-devel-y#ubantusudoapt-getinstalllibxml-devsudoapt-getinstallbuild-essentialsudoapt-getinstallopensslsudoapt-getinstalllibssl-devsudoapt-getinstallmakesudoapt-getinstallcurlsudoapt-getinstalllibcurl4-gnutls-devsudoapt-getinstalllibjpeg-devsudoapt-getinstalllibpng-devsudoapt-getinstalllibmcrypt-devsudoapt-getinstalllibadline6libadline6-devsudoapt-getinstalllibfetype6-dev#linux源码安装常规3步走./configu--pfix=/usr/local/php--with-config-file-path=/usr/local/php/etc--enable-fpm--with-fpm-user=