PHP安装后php-config命令干嘛的

php-config 是一个简单的命令行脚本用于查看所安装的 PHP 配置的信息。

我们在命令行执行 php-config 会输出所有的配置信息

Usage: /usr/local/php/bin/php-config [OPTION]
Options:
  --prefix            [/usr/local/php]
  --includes          [-I/usr/local/php/include/php -I/usr/local/php/include/php/main -I/usr/local/php/include/php/TSRM -I/usr/local/php/include/php/Zend -I/usr/local/php/include/php/ext -I/usr/local/php/include/php/ext/date/lib]
  --ldflags           [ -L/usr/local/freetype/lib -L/usr/local/lib -L/usr/lib64]
  --libs              [-lcrypt   -lz -lexslt -lcrypt -lrt -lmcrypt -lltdl -lstdc++ -lpng -lz -ljpeg -lcurl -lz -lrt -lm -ldl -lnsl  -lrt -lxml2 -lz -lm -lssl -lcrypto -lcurl -lxml2 -lz -lm -lssl -lcrypto -lfreetype -licui18n -licuuc -licudata -lm -licuio -lxml2 -lz -lm -lxml2 -lz -lm -lcrypt -lxml2 -lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lxslt -lxml2 -lz -lm -lssl -lcrypto -lcrypt ]
  --extension-dir     [/usr/local/php/lib/php/extensions/no-debug-non-zts-20160303]
  --include-dir       [/usr/local/php/include/php]
  --man-dir           [/usr/local/php/php/man]
  --php-binary        [/usr/local/php/bin/php]
  --php-sapis         [ cli fpm phpdbg cgi]
  --configure-options [--prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-config-file-scan-dir=/usr/local/php/conf.d --enable-fpm --with-fpm-user=www --with-fpm-group=www --enable-mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-iconv-dir --with-freetype-dir=/usr/local/freetype --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 --enable-intl --with-mcrypt --enable-ftp --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --with-gettext --disable-fileinfo --enable-opcache --with-xsl]
  --version           [7.1.2]
  --vernum            [70102]

其实php-config只是一个脚本而已

我们先查一下php-config在哪,然后打开文件研究一番

[root@abczn.com ~]# cat  /usr/local/php/bin/php-config
#! /bin/sh

SED="/bin/sed"
prefix="/usr/local/php"
datarootdir="/usr/local/php/php"
exec_prefix="${prefix}"
version="7.1.2"
vernum="70102"
include_dir="${prefix}/include/php"
includes="-I$include_dir -I$include_dir/main -I$include_dir/TSRM -I$include_dir/Zend -I$include_dir/ext -I$include_dir/ext/date/lib"
ldflags=" -L/usr/local/freetype/lib -L/usr/local/lib -L/usr/lib64"
libs="-lcrypt   -lz -lexslt -lcrypt -lrt -lmcrypt -lltdl -lstdc++ -lpng -lz -ljpeg -lcurl -lz -lrt -lm -ldl -lnsl  -lrt -lxml2 -lz -lm -lssl -lcrypto -lcurl -lxml2 -lz -lm -lssl -lcrypto -lfreetype -licui18n -licuuc -licudata -lm -licuio -lxml2 -lz -lm -lxml2 -lz -lm -lcrypt -lxml2 -lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lxslt -lxml2 -lz -lm -lssl -lcrypto -lcrypt "
extension_dir='/usr/local/php/lib/php/extensions/no-debug-non-zts-20160303'
man_dir=`eval echo ${datarootdir}/man`
program_prefix=""
program_suffix=""
exe_extension=""
php_cli_binary=NONE
php_cgi_binary=NONE
configure_options=" '--prefix=/usr/local/php' '--with-config-file-path=/usr/local/php/etc' '--with-config-file-scan-dir=/usr/local/php/conf.d' '--enable-fpm' '--with-fpm-user=www' '--with-fpm-group=www' '--enable-mysqlnd' '--with-mysqli=mysqlnd' '--with-pdo-mysql=mysqlnd' '--with-iconv-dir' '--with-freetype-dir=/usr/local/freetype' '--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' '--enable-intl' '--with-mcrypt' '--enable-ftp' '--with-gd' '--enable-gd-native-ttf' '--with-openssl' '--with-mhash' '--enable-pcntl' '--enable-sockets' '--with-xmlrpc' '--enable-zip' '--enable-soap' '--with-gettext' '--disable-fileinfo' '--enable-opcache' '--with-xsl'"
php_sapis=" cli fpm phpdbg cgi"

# Set php_cli_binary and php_cgi_binary if available
for sapi in $php_sapis; do
  case $sapi in
  cli)
    php_cli_binary="${exec_prefix}/bin/${program_prefix}php${program_suffix}${exe_extension}"
    ;;
  cgi)
    php_cgi_binary="${exec_prefix}/bin/${program_prefix}php-cgi${program_suffix}${exe_extension}"
    ;;
  esac
done

# Determine which (if any) php binary is available
if test "$php_cli_binary" != "NONE"; then
  php_binary="$php_cli_binary"
else
  php_binary="$php_cgi_binary"
fi

# Remove quotes
configure_options=`echo $configure_options | $SED -e "s#'##g"`

case "$1" in
--prefix)
  echo $prefix;;
--includes)
  echo $includes;;
--ldflags)
  echo $ldflags;;
--libs)
  echo $libs;;
--extension-dir)
  echo $extension_dir;;
--include-dir)
  echo $include_dir;;
--php-binary)
  echo $php_binary;;
--php-sapis)
  echo $php_sapis;;
--configure-options)
  echo $configure_options;;
--man-dir)
  echo $man_dir;;
--version)
  echo $version;;
--vernum)
  echo $vernum;;
*)
  cat << EOF
Usage: $0 [OPTION]
Options:
  --prefix            [$prefix]
  --includes          [$includes]
  --ldflags           [$ldflags]
  --libs              [$libs]
  --extension-dir     [$extension_dir]
  --include-dir       [$include_dir]
  --man-dir           [$man_dir]
  --php-binary        [$php_binary]
  --php-sapis         [$php_sapis]
  --configure-options [$configure_options]
  --version           [$version]
  --vernum            [$vernum]
EOF
  exit 1;;
esac

exit 0