标签：php

github-php 图床

• 可以web界面上传
• 可以通过api第三方客户上传
• 用户验证

mb_detect_encoding($firstStr, array("ASCII","UTF-8","GB2312","GBK","BIG5")); #判断字符编码
mb_substr #获取字符长度
preg_match("/[\x7f-\xff]/",$firstStr) # 判断中文
preg_match("/[a-zA-Z]/", $firstStr) # 判断英文

相关资料

最全的正则表达式

php配置 PHP命令模式

php -r "echo ini_get('extension_dir');" 查看扩展存放位置

php --ini php配置文件位置

php处理全国省市区 数据从ecshop导入的

/**
     * 获取全国省市区列表（格式化后）
     */
    public function getRegionList()
    {
        $data = CoreRegion::find()->select(['region_id', 'region_name', 'parent_id', 'region_level'])->asArray()->all();
        $data = $this->assembleRegionData($data);
        return $data;
    }

    /**
     * 重组地区数据
     */
    public function assembleRegionData($data, $pid = 0)
    {
        $list = [];
        foreach ($data as $k => $v) {
            if ($v['parent_id'] == $pid) {
                // 继续查找其子市区县
                $v['list'] = $this->assembleRegionData($data, $v['region_id']);
                // 如果子地区为空，则unset掉
                if (empty($v['list'])) {
                    unset($v['list']);
                }
                $list[] = $v;
            }
        }
        return $list;

    }

相关资料

PHP格式化全国省市区列表

经纬度计算两地之间的距离

mysql

# 精华代码段
ROUND(6378.138*2*ASIN(SQRT(POW(SIN(({$latitude}*PI()/180-latitude*PI()/180)/2),2)+COS({$latitude}*PI()/180)*COS(latitude*PI()/180)*POW(SIN(({$longitude}*PI()/180-longitude*PI()/180)/2),2)))*1000) AS distance
# 完整代码段
$this->db->whereNotNull('u.longitude')->whereNotNull('u.latitude')->orderBy('distance', 'ASC')->get($this->getTable($this->table) . ' as r', null, "u.id as uid,r.id, ROUND(6378.138*2*ASIN(SQRT(POW(SIN(({$latitude}*PI()/180-latitude*PI()/180)/2),2)+COS({$latitude}*PI()/180)*COS(latitude*PI()/180)*POW(SIN(({$longitude}*PI()/180-longitude*PI()/180)/2),2)))*1000) AS distance , u.longitude, u.latitude, r.level");

PHP

    /**
     * 根据起点坐标和终点坐标测距离
     * @param  [array]   $from  [起点坐标(经纬度),例如:array(118.012951,36.810024)]
     * @param  [array]   $to    [终点坐标(经纬度)]
     * @param  [bool]    $km        是否以公里为单位 false:米 true:公里(千米)
     * @param  [int]     $decimal   精度 保留小数位数
     * @return [string]  距离数值
     */
    function getDistance($from,$to,$km=true,$decimal=2){
        sort($from);
        sort($to);
        $EARTH_RADIUS = 6370.996; // 地球半径系数

        $distance = $EARTH_RADIUS*2*asin(sqrt(pow(sin( ($from[0]*pi()/180-$to[0]*pi()/180)/2),2)+cos($from[0]*pi()/180)*cos($to[0]*pi()/180)* pow(sin( ($from[1]*pi()/180-$to[1]*pi()/180)/2),2)))*1000;

        if($km){
            $distance = $distance / 1000;
        }

        return round($distance, $decimal);
    }

相关资料

mysql php和js根据经纬度计算距离
MySql根据经纬度查询任意距离范围内数据
PHP根据经纬度计算两地之间的距离

工具在线计算距离

方式1

$from = new DateTime('1970-02-01');
$to   = new DateTime('today');
echo $from->diff($to)->y;

方式2

echo date_diff(date_create('1970-02-01'), date_create('today'))->y;

方式3

SELECT TIMESTAMPDIFF(YEAR, '1970-02-01', CURDATE()) AS age;

SELECT TIMESTAMPDIFF(YEAR, from_unixtime(birthday), CURDATE()) AS age from account where id = 10; 

相关资料

根据出生日期计算年龄

php --ri swoole # 查看扩展版本

ubuntu编译安装PHP 编译PHP

• ubuntu-16.0.4
• php-7.2.21

PHP安装步骤

1. 下载PHP源码文件 https://www.php.net/distributions/php-7.2.21.tar.gz
2. 解压编译安装 https://www.php.net/manual/zh/install.unix.nginx.php

操作日志

执行命令

./configure --enable-fpm 
make
sudo make install

输出结果

Installing PEAR environment:      /usr/local/lib/php/
[PEAR] Archive_Tar    - installed: 1.4.7
[PEAR] Console_Getopt - installed: 1.4.2
[PEAR] Structures_Graph- installed: 1.1.1
[PEAR] XML_Util       - installed: 1.4.3
[PEAR] PEAR           - installed: 1.10.9
Wrote PEAR system config file at: /usr/local/etc/pear.conf
You may want to add: /usr/local/lib/php to your php.ini include_path
/home/hellomjw/php/php-7.2.21/build/shtool install -c ext/phar/phar.phar /usr/local/bin
ln -s -f phar.phar /usr/local/bin/phar
Installing PDO headers:           /usr/local/include/php/ext/pdo/

执行命令

php -m

输出结果

[PHP Modules]
Core
ctype
date
dom
fileinfo
filter
hash
iconv
json
libxml
pcre
PDO
pdo_sqlite
Phar
posix
Reflection
session
SimpleXML
SPL
sqlite3
standard
tokenizer
xml
xmlreader
xmlwriter

[Zend Modules]

可选安装配置

test01@ubuntu:~/php/php-7.2.21$ ./configure --help
`configure' configures this package to adapt to many kinds of systems.

Usage: ./configure [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print `checking ...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for `--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or `..']

Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [/usr/local]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [PREFIX]

By default, `make install' will install all the files in
`/usr/local/bin', `/usr/local/lib' etc.  You can specify
an installation prefix other than `/usr/local' using `--prefix',
for instance `--prefix=$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
  --target=TARGET   configure for building compilers for TARGET [HOST]

Optional Features and Packages:
  --disable-option-checking  ignore unrecognized --enable/--with options
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --with-libdir=NAME      Look for libraries in .../NAME rather than .../lib
  --disable-rpath         Disable passing additional runtime library
                          search paths
  --enable-re2c-cgoto     Enable -g flag to re2c to use computed goto gcc extension
  --disable-gcc-global-regs
                          whether to enable GCC global register variables

SAPI modules:

  --with-apxs2=FILE       Build shared Apache 2.0 Handler module. FILE is the optional
                          pathname to the Apache apxs tool apxs
  --disable-cli           Disable building CLI version of PHP
                          (this forces --without-pear)
  --enable-embed=TYPE     EXPERIMENTAL: Enable building of embedded SAPI library
                          TYPE is either 'shared' or 'static'. TYPE=shared
  --enable-fpm            Enable building of the fpm SAPI executable
  --with-fpm-user=USER    Set the user for php-fpm to run as. (default: nobody)
  --with-fpm-group=GRP    Set the group for php-fpm to run as. For a system user, this
                          should usually be set to match the fpm username (default: nobody)
  --with-fpm-systemd      Activate systemd integration
  --with-fpm-acl          Use POSIX Access Control Lists
  --with-litespeed        Build PHP as litespeed module
  --enable-phpdbg            Build phpdbg
  --enable-phpdbg-webhelper  Build phpdbg web SAPI support
  --enable-phpdbg-debug      Build phpdbg in debug mode
  --enable-phpdbg-readline   Enable readline support in phpdbg (depends on static ext/readline)
  --disable-cgi           Disable building CGI version of PHP
  --with-valgrind=DIR     Enable valgrind support

General settings:

  --enable-gcov           Enable GCOV code coverage (requires LTP) - FOR DEVELOPERS ONLY!!
  --enable-debug          Compile with debugging symbols
  --with-layout=TYPE      Set how installed files will be laid out.  Type can
                          be either PHP or GNU [PHP]
  --with-config-file-path=PATH
                          Set the path in which to look for php.ini [PREFIX/lib]
  --with-config-file-scan-dir=PATH
                          Set the path where to scan for configuration files
  --enable-sigchild       Enable PHP's own SIGCHLD handler
  --enable-libgcc         Enable explicitly linking against libgcc
  --disable-short-tags    Disable the short-form <? start tag by default
  --enable-dmalloc        Enable dmalloc
  --disable-ipv6          Disable IPv6 support
  --enable-dtrace         Enable DTrace support
  --enable-fd-setsize     Set size of descriptor sets

Extensions:

  --with-EXTENSION=shared[,PATH]

    NOTE: Not all extensions can be build as 'shared'.

    Example: --with-foobar=shared,/usr/local/foobar/

      o Builds the foobar extension as shared extension.
      o foobar package install prefix is /usr/local/foobar/


  --disable-all           Disable all extensions which are enabled by default

  --disable-libxml        Disable LIBXML support
  --with-libxml-dir=DIR   LIBXML: libxml2 install prefix
  --with-openssl=DIR      Include OpenSSL support (requires OpenSSL >= 1.0.1)
  --with-kerberos=DIR     OPENSSL: Include Kerberos support
  --with-system-ciphers   OPENSSL: Use system default cipher list instead of hardcoded value
  --with-pcre-regex=DIR   Include Perl Compatible Regular Expressions support.
                          DIR is the PCRE install prefix BUNDLED
  --with-pcre-jit         Enable PCRE JIT functionality (BUNDLED only)
  --with-pcre-valgrind=DIR
                          Enable PCRE valgrind support. Developers only!
  --without-sqlite3=DIR   Do not include SQLite3 support. DIR is the prefix to
                          SQLite3 installation directory.
  --with-zlib=DIR         Include ZLIB support (requires zlib >= 1.2.0.4)
  --with-zlib-dir=<DIR>   Define the location of zlib install directory
  --enable-bcmath         Enable bc style precision math functions
  --with-bz2=DIR          Include BZip2 support
  --enable-calendar       Enable support for calendar conversion
  --disable-ctype         Disable ctype functions
  --with-curl=DIR         Include cURL support
  --enable-dba            Build DBA with bundled modules. To build shared DBA
                          extension use --enable-dba=shared
  --with-qdbm=DIR         DBA: QDBM support
  --with-gdbm=DIR         DBA: GDBM support
  --with-ndbm=DIR         DBA: NDBM support
  --with-db4=DIR          DBA: Oracle Berkeley DB 4.x or 5.x support
  --with-db3=DIR          DBA: Oracle Berkeley DB 3.x support
  --with-db2=DIR          DBA: Oracle Berkeley DB 2.x support
  --with-db1=DIR          DBA: Oracle Berkeley DB 1.x support/emulation
  --with-dbm=DIR          DBA: DBM support
  --with-tcadb=DIR        DBA: Tokyo Cabinet abstract DB support
  --with-lmdb=DIR        DBA: Lightning memory-mapped database support
  --without-cdb=DIR       DBA: CDB support (bundled)
  --disable-inifile       DBA: INI support (bundled)
  --disable-flatfile      DBA: FlatFile support (bundled)
  --disable-dom           Disable DOM support
  --with-libxml-dir=DIR   DOM: libxml2 install prefix
  --with-enchant=DIR      Include enchant support.
                          GNU Aspell version 1.1.3 or higher required.
  --enable-exif           Enable EXIF (metadata from images) support
  --disable-fileinfo      Disable fileinfo support
  --disable-filter        Disable input filter support
  --with-pcre-dir         FILTER: pcre install prefix
  --enable-ftp            Enable FTP support
  --with-openssl-dir=DIR  FTP: openssl install prefix
  --with-gd=DIR           Include GD support.  DIR is the GD library base
                          install directory BUNDLED
  --with-webp-dir=DIR      GD: Set the path to libwebp install prefix
  --with-jpeg-dir=DIR     GD: Set the path to libjpeg install prefix
  --with-png-dir=DIR      GD: Set the path to libpng install prefix
  --with-zlib-dir=DIR     GD: Set the path to libz install prefix
  --with-xpm-dir=DIR      GD: Set the path to libXpm install prefix
  --with-freetype-dir=DIR GD: Set the path to FreeType 2 install prefix
  --enable-gd-jis-conv    GD: Enable JIS-mapped Japanese font support
  --with-gettext=DIR      Include GNU gettext support
  --with-gmp=DIR          Include GNU MP support
  --with-mhash=DIR        Include mhash support
  --disable-hash          Disable hash support
  --without-iconv=DIR     Exclude iconv support
  --with-imap=DIR         Include IMAP support. DIR is the c-client install prefix
  --with-kerberos=DIR     IMAP: Include Kerberos support. DIR is the Kerberos install prefix
  --with-imap-ssl=DIR     IMAP: Include SSL support. DIR is the OpenSSL install prefix
  --with-interbase=DIR    Include Firebird support.  DIR is the Firebird base
                          install directory /opt/firebird
  --enable-intl           Enable internationalization support
  --with-icu-dir=DIR      Specify where ICU libraries and headers can be found
  --disable-json          Disable JavaScript Object Serialization support
  --with-ldap=DIR         Include LDAP support
  --with-ldap-sasl=DIR    LDAP: Include Cyrus SASL support
  --enable-mbstring       Enable multibyte string support
  --disable-mbregex       MBSTRING: Disable multibyte regex support
  --disable-mbregex-backtrack
                          MBSTRING: Disable multibyte regex backtrack check
  --with-libmbfl=DIR      MBSTRING: Use external libmbfl.  DIR is the libmbfl base
                          install directory BUNDLED
  --with-onig=DIR         MBSTRING: Use external oniguruma. DIR is the oniguruma install prefix.
                          If DIR is not set, the bundled oniguruma will be used
  --with-mysqli=FILE      Include MySQLi support.  FILE is the path
                          to mysql_config.  If no value or mysqlnd is passed
                          as FILE, the MySQL native driver will be used
  --enable-embedded-mysqli
                          MYSQLi: Enable embedded support
                          Note: Does not work with MySQL native driver!
  --with-mysql-sock=SOCKPATH
                          MySQLi/PDO_MYSQL: Location of the MySQL unix socket pointer.
                          If unspecified, the default locations are searched
  --with-oci8=DIR         Include Oracle Database OCI8 support. DIR defaults to $ORACLE_HOME.
                          Use --with-oci8=instantclient,/path/to/instant/client/lib
                          to use an Oracle Instant Client installation
  --with-odbcver=HEX      Force support for the passed ODBC version. A hex number is expected, default 0x0350.
                             Use the special value of 0 to prevent an explicit ODBCVER to be defined.
  --with-adabas=DIR       Include Adabas D support /usr/local
  --with-sapdb=DIR        Include SAP DB support /usr/local
  --with-solid=DIR        Include Solid support /usr/local/solid
  --with-ibm-db2=DIR      Include IBM DB2 support /home/db2inst1/sqllib
  --with-ODBCRouter=DIR   Include ODBCRouter.com support /usr
  --with-empress=DIR      Include Empress support \$EMPRESSPATH
                          (Empress Version >= 8.60 required)
  --with-empress-bcs=DIR
                          Include Empress Local Access support \$EMPRESSPATH
                          (Empress Version >= 8.60 required)
  --with-birdstep=DIR     Include Birdstep support /usr/local/birdstep
  --with-custom-odbc=DIR  Include user defined ODBC support. DIR is ODBC install base
                          directory /usr/local. Make sure to define CUSTOM_ODBC_LIBS and
                          have some odbc.h in your include dirs. f.e. you should define
                          following for Sybase SQL Anywhere 5.5.00 on QNX, prior to
                          running this configure script:
                            CPPFLAGS=\"-DODBC_QNX -DSQLANY_BUG\"
                            LDFLAGS=-lunix
                            CUSTOM_ODBC_LIBS=\"-ldblib -lodbc\"
  --with-iodbc=DIR        Include iODBC support /usr/local
  --with-esoob=DIR        Include Easysoft OOB support /usr/local/easysoft/oob/client
  --with-unixODBC=DIR     Include unixODBC support /usr/local
  --with-dbmaker=DIR      Include DBMaker support
  --disable-opcache       Disable Zend OPcache support
  --disable-opcache-file  Disable file based caching
  --disable-huge-code-pages
                          Disable copying PHP CODE pages into HUGE PAGES
  --enable-pcntl          Enable pcntl support (CLI/CGI only)
  --disable-pdo           Disable PHP Data Objects support
  --with-pdo-dblib=DIR    PDO: DBLIB-DB support.  DIR is the FreeTDS home directory
  --with-pdo-firebird=DIR PDO: Firebird support.  DIR is the Firebird base
                          install directory /opt/firebird
  --with-pdo-mysql=DIR    PDO: MySQL support. DIR is the MySQL base directory
                          If no value or mysqlnd is passed as DIR, the
                          MySQL native driver will be used
  --with-zlib-dir=DIR     PDO_MySQL: Set the path to libz install prefix
  --with-pdo-oci=DIR      PDO: Oracle OCI support. DIR defaults to $ORACLE_HOME.
                          Use --with-pdo-oci=instantclient,/path/to/instant/client/lib
                          for an Oracle Instant Client installation.
  --with-pdo-odbc=flavour,dir
                          PDO: Support for 'flavour' ODBC driver.
                          include and lib dirs are looked for under 'dir'.

                          'flavour' can be one of:  ibm-db2, iODBC, unixODBC, generic
                          If ',dir' part is omitted, default for the flavour
                          you have selected will be used. e.g.:

                            --with-pdo-odbc=unixODBC

                          will check for unixODBC under /usr/local. You may attempt
                          to use an otherwise unsupported driver using the \"generic\"
                          flavour.  The syntax for generic ODBC support is:

                            --with-pdo-odbc=generic,dir,libname,ldflags,cflags

                          When built as 'shared' the extension filename is always pdo_odbc.so
  --with-pdo-pgsql=DIR    PDO: PostgreSQL support.  DIR is the PostgreSQL base
                          install directory or the path to pg_config
  --without-pdo-sqlite=DIR
                          PDO: sqlite 3 support.  DIR is the sqlite base
                          install directory BUNDLED
  --with-pgsql=DIR        Include PostgreSQL support.  DIR is the PostgreSQL
                          base install directory or the path to pg_config
  --disable-phar          Disable phar support
  --disable-posix         Disable POSIX-like functions
  --with-pspell=DIR       Include PSPELL support.
                          GNU Aspell version 0.50.0 or higher required
  --with-libedit=DIR      Include libedit readline replacement (CLI/CGI only)
  --with-readline=DIR     Include readline support (CLI/CGI only)
  --with-recode=DIR       Include recode support
  --disable-session       Disable session support
  --with-mm=DIR           SESSION: Include mm support for session storage
  --enable-shmop          Enable shmop support
  --disable-simplexml     Disable SimpleXML support
  --with-libxml-dir=DIR   SimpleXML: libxml2 install prefix
  --with-snmp=DIR         Include SNMP support
  --with-openssl-dir=DIR  SNMP: openssl install prefix
  --enable-soap           Enable SOAP support
  --with-libxml-dir=DIR   SOAP: libxml2 install prefix
  --enable-sockets        Enable sockets support
  --with-sodium=DIR     Include sodium support
  --with-password-argon2=DIR           Include Argon2 support in password_*. DIR is the Argon2 shared library path]
  --enable-sysvmsg        Enable sysvmsg support
  --enable-sysvsem        Enable System V semaphore support
  --enable-sysvshm        Enable the System V shared memory support
  --with-tidy=DIR         Include TIDY support
  --disable-tokenizer     Disable tokenizer support
  --enable-wddx           Enable WDDX support
  --with-libxml-dir=DIR   WDDX: libxml2 install prefix
  --with-libexpat-dir=DIR WDDX: libexpat dir for XMLRPC-EPI (deprecated)
  --disable-xml           Disable XML support
  --with-libxml-dir=DIR   XML: libxml2 install prefix
  --with-libexpat-dir=DIR XML: libexpat install prefix (deprecated)
  --disable-xmlreader     Disable XMLReader support
  --with-libxml-dir=DIR   XMLReader: libxml2 install prefix
  --with-xmlrpc=DIR       Include XMLRPC-EPI support
  --with-libxml-dir=DIR   XMLRPC-EPI: libxml2 install prefix
  --with-libexpat-dir=DIR XMLRPC-EPI: libexpat dir for XMLRPC-EPI (deprecated)
  --with-iconv-dir=DIR    XMLRPC-EPI: iconv dir for XMLRPC-EPI
  --disable-xmlwriter     Disable XMLWriter support
  --with-libxml-dir=DIR   XMLWriter: libxml2 install prefix
  --with-xsl=DIR          Include XSL support.  DIR is the libxslt base
                          install directory (libxslt >= 1.1.0 required)
  --enable-zend-test           Enable zend-test extension
  --enable-zip            Include Zip read/write support
  --with-zlib-dir=DIR     ZIP: Set the path to libz install prefix
  --with-pcre-dir         ZIP: pcre install prefix
  --with-libzip=DIR       ZIP: use libzip
  --enable-mysqlnd        Enable mysqlnd explicitly, will be done implicitly
                          when required by other extensions
  --disable-mysqlnd-compression-support
                          Disable support for the MySQL compressed protocol in mysqlnd
  --with-zlib-dir=DIR     mysqlnd: Set the path to libz install prefix

PEAR:

  --with-pear=DIR         Install PEAR in DIR [PREFIX/lib/php]
  --without-pear          Do not install PEAR

Zend:

  --enable-maintainer-zts Enable thread safety - for code maintainers only!!
  --disable-inline-optimization
                          If building zend_execute.lo fails, try this switch
  --disable-zend-signals  whether to enable zend signal handling

TSRM:

  --with-tsrm-pth=pth-config
                          Use GNU Pth
  --with-tsrm-st          Use SGI's State Threads
  --with-tsrm-pthreads    Use POSIX threads (default)

Libtool:

  --enable-shared=PKGS    Build shared libraries default=yes
  --enable-static=PKGS    Build static libraries default=yes
  --enable-fast-install=PKGS
                          Optimize for fast installation default=yes
  --with-gnu-ld           Assume the C compiler uses GNU ld default=no
  --disable-libtool-lock  Avoid locking (might break parallel builds)
  --with-pic              Try to use only PIC/non-PIC objects default=use both
  --with-tags=TAGS        Include additional configurations automatic


Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>
  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
              you have headers in a nonstandard directory <include dir>
  CPP         C preprocessor
  YACC        The `Yet Another Compiler Compiler' implementation to use.
              Defaults to the first program found out of: `bison -y', `byacc',
              `yacc'.
  YFLAGS      The list of arguments that will be passed by default to $YACC.
              This script will default YFLAGS to the empty string to avoid a
              default value of `-d' given by some make applications.
  CXX         C++ compiler command
  CXXFLAGS    C++ compiler flags
  CXXCPP      C++ preprocessor

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.