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/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/lib -L/usr/local/lib -L/usr/local/mysql/lib]
  --libs              [  -lz -lresolv -lmysqlclient -lmcrypt -lpng -lz -lcurl -lm  -lxml2 -lz -licucore -lm -lcurl -lxml2 -lz -licucore -lm -lmysqlclient -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm ]
  --extension-dir     [/usr/local/php/lib/php/extensions/no-debug-non-zts-20131226]
  --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 cgi]
  --configure-options [--prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-curl --enable-fpm --with-mcrypt --with-mhash --with-gd -enable-zip --enable-fastCGI --without-iconv]
  --version           [5.6.21]
  --vernum            [50621]

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

where php-config

localhost% where php-config

/usr/local/php/bin/php-config

/usr/bin/php-config

localhost% vim /usr/local/php/bin/php-config

脚本内容如下

#! /bin/sh

SED="/usr/bin/sed"
prefix="/usr"
datarootdir="/usr/php"
exec_prefix="${prefix}"
version="5.5.30"
vernum="50530"
include_dir="${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/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.Internal.sdk/usr/lib "
libs="-lresolv  -lcrypto -lssl -lcrypto -lz -lexslt -ltidy -lresolv -ledit -lncurses -lldap -llber -liconv -liconv -lpng -lz -ljpeg -lcrypto -lssl -lcrypto -lcurl -lbz2 -lz -lpcre -lcrypto -lssl -lcrypto -lm  -lxml2 -lz -licucore -lm -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lcurl -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lnetsnmp -lcrypto -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lxslt "
extension_dir=‘/usr/lib/php/extensions/no-debug-non-zts-20121212‘
man_dir=`eval echo /usr/share/man`
program_prefix=""
program_suffix=""
exe_extension=""
php_cli_binary=NONE
php_cgi_binary=NONE
configure_options=" ‘--prefix=/usr‘ ‘--mandir=/usr/share/man‘ ‘--infodir=/usr/share/info‘ ‘--disable-dependency-tracking‘ ‘--sysconfdir=/private/etc‘ ‘--with-libdir=lib‘ ‘--enable-cli‘ ‘--with-iconv=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.Internal.sdk/usr‘ ‘--with-config-file-path=/etc‘ ‘--with-config-file-scan-dir=/Library/Server/Web/Config/php‘ ‘--with-libxml-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.Internal.sdk/usr‘ ‘--with-openssl=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.Internal.sdk/usr/local"
php_sapis=" apache2handler cli fpm"

# 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