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Complete list of configure options

Note: These are only used at compile time. If you want to alter PHP's runtime configuration, please go to Configuration.

The following is a complete list of options supported by the PHP 3 and PHP 4 configure scripts, used when compiling in Unix-like environments. Some are available in PHP 3, some in PHP 4, and some in both, as noted. There are many options the names of which have changed between PHP 3 and PHP 4, but which accomplish the same things. These entries are cross-referenced to each other, so if you have a problem getting your PHP 3-era configuration options to work, check here to see whether the names have changed.

Database

--with-adabas[=DIR]

PHP 3, PHP 4: Include Adabas D support. DIR is the Adabas base install directory, defaults to /usr/local.

Adabas home page

--enable-dba=shared

PHP 3: Option not available in PHP 3

PHP 4: Build DBA as a shared module

--enable-dbase

PHP 3: Option not available; use --with-dbase instead.

PHP 4: Enable the bundled dbase library. No external libraries are required.

--with-dbase

PHP 3: Include the bundled dbase library. No external libraries are required.

PHP 4: Option not available; use --enable-dbase instead.

--with-db2[=DIR]

PHP 3, PHP 4: Include Berkeley DB2 support

--with-db3[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include Berkeley DB3 support

--with-dbm[=DIR]

PHP 3, PHP 4: Include DBM support

--with-dbmaker[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include DBMaker support. DIR is the DBMaker base install directory, defaults to where the latest version of DBMaker is installed (such as /home/dbmaker/3.6).

--with-empress[=DIR]

PHP 3, PHP 4: Include Empress support. DIR is the Empress base install directory, defaults to $EMPRESSPATH

--enable-filepro

PHP 3: Option not available; use --with-filepro instead.

PHP 4: Enable the bundled read-only filePro support. No external libraries are required.

--with-filepro

PHP 3: Include the bundled read-only filePro support. No external libraries are required.

PHP 4: Option not available; use --enable-filepro instead.

--with-gdbm[=DIR]

PHP 3, PHP 4: Include GDBM support

--with-hyperwave

PHP 3, PHP 4: Include Hyperwave support

--with-ibm-db2[=DIR]

PHP 3, PHP 4: Include IBM DB2 support. DIR is the DB2 base install directory, defaults to /home/db2inst1/sqllib.

IBM DB2 home page

--with-informix[=DIR]

PHP 3, PHP 4: Include Informix support. DIR is the Informix base install directory, defaults to nothing.

--with-ingres[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include Ingres II support. DIR is the Ingres base directory (default /II/ingres)

--with-interbase[=DIR]

PHP 3, PHP 4: Include InterBase support. DIR is the InterBase base install directory, which defaults to /usr/interbase.

Interbase functions

Interbase home page

--with-ldap[=DIR]

PHP 3: Include LDAP support. DIR is the LDAP base install directory. Defaults to /usr and /usr/local

PHP 4: Include LDAP support. DIR is the LDAP base install directory.

This provides LDAP (Lightweight Directory Access Protocol support). The parameter is the LDAP base install directory, defaults to /usr/local/ldap.

More information about LDAP can be found in RFC1777 and RFC1778.

--with-msql[=DIR]

PHP 3, PHP 4: Enables mSQL support. The parameter to this option is the mSQL install directory and defaults to /usr/local/Hughes. This is the default directory of the mSQL 2.0 distribution. configure automatically detects which mSQL version you are running and PHP supports both 1.0 and 2.0, but if you compile PHP with mSQL 1.0, you can only access mSQL 1.0 databases, and vice-versa.

See also mSQL Configuration Directives in the configuration file.

mSQL home page

--with-mysql[=DIR]

PHP 3: Include MySQL support. DIR is the MySQL base install directory, defaults to searching through a number of common places for the MySQL files.

PHP 4: Include MySQL support. DIR is the MySQL base directory. If unspecified, the bundled MySQL library will be used. This option is turned on by default.

See also MySQL Configuration Directives in the configuration file.

MySQL home page

--with-ndbm[=DIR]

PHP 3, PHP 4: Include NDBM support

--with-oci8[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include Oracle-oci8 support. Default DIR is ORACLE_HOME.

--with-oracle[=DIR]

PHP 3: Include Oracle database support. DIR is Oracle's home directory, defaults to $ORACLE_HOME.

PHP 4: Include Oracle-oci7 support. Default DIR is ORACLE_HOME.

Includes Oracle support. Has been tested and should be working at least with Oracle versions 7.0 through 7.3. The parameter is the ORACLE_HOME directory. You do not have to specify this parameter if your Oracle environment has been set up.

Oracle home page

--with-pgsql[=DIR]

PHP 3: Include PostgresSQL support. DIR is the PostgresSQL base install directory, which defaults to /usr/local/pgsql.

PHP 4: Include PostgreSQL support. DIR is the PostgreSQL base install directory, which defaults to /usr/local/pgsql. Set DIR to shared to build as a dl, or shared,DIR to build as a dl and still specify DIR.

See also Postgres Configuration Directives in the configuration file.

PostgreSQL home page

--with-solid[=DIR]

PHP 3, PHP 4: Include Solid support. DIR is the Solid base install directory, defaults to /usr/local/solid

Solid home page

--with-sybase-ct[=DIR]

PHP 3, PHP 4: Include Sybase-CT support. DIR is the Sybase home directory, defaults to /home/sybase.

See also Sybase-CT Configuration Directives in the configuration file.

--with-sybase[=DIR]

PHP 3, PHP 4: Include Sybase-DB support. DIR is the Sybase home directory, which defaults to /home/sybase.

See also Sybase Configuration Directives in the configuration file.

Sybase home page

--with-openlink[=DIR]

PHP 3, PHP 4: Include OpenLink ODBC support. DIR is the OpenLink base install directory, defaults to /usr/local/openlink.

OpenLink Software's home page

--with-iodbc[=DIR]

PHP 3, PHP 4: Include iODBC support. DIR is the iODBC base install directory, defaults to /usr/local.

This feature was first developed for iODBC Driver Manager, a freely redistributable ODBC driver manager which runs under many flavors of UNIX.

FreeODBC home page or iODBC home page

--with-custom-odbc[=DIR]

PHP 3, PHP 4: Includes support for an arbitrary custom ODBC library. The parameter is the base directory and defaults to /usr/local.

This option implies that you have defined CUSTOM_ODBC_LIBS when you run the configure script. You also must have a valid odbc.h header somewhere in your include path. If you don't have one, create it and include your specific header from there. Your header may also require some extra definitions, particularly when it is multiplatform. Define them in CFLAGS.

For example, you can use Sybase SQL Anywhere on QNX as following: CFLAGS=-DODBC_QNX LDFLAGS=-lunix CUSTOM_ODBC_LIBS="-ldblib -lodbc" ./configure --with-custom-odbc=/usr/lib/sqlany50

--disable-unified-odbc

PHP 3: Disable unified ODBC support. Only applicable if iODBC, Adabas, Solid, Velocis or a custom ODBC interface is enabled.

PHP 4: Option not available in PHP 4

The Unified ODBC module, which is a common interface to all the databases with ODBC-based interfaces, such as Solid, IBM DB2 and Adabas D. It also works for normal ODBC libraries. Has been tested with iODBC, Solid, Adabas D, IBM DB2 and Sybase SQL Anywhere. Requires that one (and only one) of these modules or the Velocis module is enabled, or a custom ODBC library specified. This option is only applicable if one of the following options is used: --with-iodbc, --with-solid, --with-ibm-db2, --with-adabas, --with-velocis, or --with-custom-odbc.

See also Unified ODBC Configuration Directives in the configuration file.

--with-unixODBC[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include unixODBC support. DIR is the unixODBC base install directory, defaults to /usr/local.

--with-velocis[=DIR]

PHP 3, PHP 4: Include Velocis support. DIR is the Velocis base install directory, defaults to /usr/local/velocis.

Velocis home page

Ecommerce

--with-ccvs[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Compile CCVS support into PHP4. Please specify your CCVS base install directory as DIR.

--with-mck[=DIR]

PHP 3: Include Cybercash MCK support. DIR is the cybercash mck build directory, which defaults to /usr/src/mck-3.2.0.3-linux. For help, look in extra/cyberlib.

PHP 4: Option not available; use --with-cybercash instead.

--with-cybercash[=DIR]

PHP 3: Option not available; use --with-mck instead.

PHP 4: Include CyberCash support. DIR is the CyberCash MCK install directory.

--with-pfpro[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include Verisign Payflow Pro support

Graphics

--enable-freetype-4bit-antialias-hack

PHP 3: Option not available in PHP 3

PHP 4: Include support for FreeType2 (experimental).

--with-gd[=DIR]

PHP 3: Include GD support (DIR is GD's install dir).

PHP 4: Include GD support (DIR is GD's install dir). Set DIR to shared to build as a dl, or shared,DIR to build as a dl and still specify DIR.

--without-gd

PHP 3, PHP 4: Disable GD support.

--with-imagick[=DIR]

PHP 3: Include ImageMagick support. DIR is the install directory, and if left out, PHP will try to find it on its own. [experimental]

PHP 4: Option not available in PHP 4

--with-jpeg-dir[=DIR]

PHP 3: jpeg dir for pdflib 2.0

PHP 4: jpeg dir for pdflib 3.x

--with-png-dir[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: png dir for pdflib 3.x

--enable-t1lib

PHP 3: Enable t1lib support.

PHP 4: Option not available; use --with-t1lib instead.

--with-t1lib[=DIR]

PHP 3: Option not available; use --enable-t1lib instead.

PHP 4: Include T1lib support.

--with-tiff-dir[=DIR]

PHP 3: tiff dir for pdflib 2.0

PHP 4: tiff dir for pdflib 3.x

--with-ttf[=DIR]

PHP 3, PHP 4: Include FreeType support

--with-xpm-dir[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: xpm dir for gd-1.8+

Miscellaneous

These are being classified over time, where appropriate.

--disable-bcmath

PHP 3: Compile without BC arbitrary precision math functions. These functions allow you to operate with numbers outside of the ranges allowed by regular integers and floats; see BCMath Arbitrary Precision Mathematics Functions for more information.

PHP 4: Option not available; bcmath is not compiled in by default. Use --enable-bcmath to compile it in.

--disable-display-source

PHP 3: Compile without displaying source support

PHP 4: Option not available in PHP 4

--disable-libtool-lock

PHP 3: Option not available in PHP 3

PHP 4: avoid locking (might break parallel builds)

--disable-pear

PHP 3: Option not available in PHP 3

PHP 4: Do not install PEAR

--disable-pic

PHP 3: Option not available in PHP 3

PHP 4: Disable PIC for shared objects

--disable-posix

PHP 3: Option not available in PHP 3; use --without-posix instead.

PHP 4: Disable POSIX-like functions

--disable-rpath

PHP 3: Option not available in PHP 3

PHP 4: Disable passing additional runtime library search paths

--disable-session

PHP 3: Option not available in PHP 3

PHP 4: Disable session support

--enable-bcmath

PHP 3: Option not available in PHP 3; bcmath is compiled in by default. Use --disable-bcmath to disable it.

PHP 4: Compile with bc style precision math functions. Read README-BCMATH for instructions on how to get this module installed. These functions allow you to operate with numbers outside of the ranges allowed by regular integers and floats; see BCMath Arbitrary Precision Mathematics Functions for more information.

--enable-c9x-inline

PHP 3: Option not available in PHP 3

PHP 4: Enable C9x-inline semantics

--enable-calendar

PHP 3: Option not available in PHP 3

PHP 4: Enable support for calendar conversion

--enable-debug

PHP 3, PHP 4: Compile with debugging symbols.

--enable-debugger

PHP 3: Compile with remote debugging functions

PHP 4: Option not available in PHP 4

--enable-discard-path

PHP 3, PHP 4: If this is enabled, the PHP CGI binary can safely be placed outside of the web tree and people will not be able to circumvent .htaccess security.

--enable-dmalloc

PHP 3, PHP 4: Enable dmalloc

--enable-exif

PHP 3: Option not available in PHP 3

PHP 4: Enable exif support

--enable-experimental-zts

PHP 3: Option not available in PHP 3

PHP 4: This will most likely break your build

--enable-fast-install[=PKGS]

PHP 3: Option not available in PHP 3

PHP 4: optimize for fast installation [default=yes]

--enable-force-cgi-redirect

PHP 3, PHP 4: Enable the security check for internal server redirects. You should use this if you are running the CGI version with Apache.

--enable-inline-optimization

PHP 3: Option not available in PHP 3

PHP 4: If you have much memory and are using gcc, you might try this.

--enable-libgcc

PHP 3: Option not available in PHP 3

PHP 4: Enable explicitly linking against libgcc

--enable-maintainer-mode

PHP 3, PHP 4: enable make rules and dependencies not useful (and sometimes confusing) to the casual installer

--enable-memory-limit

PHP 3, PHP 4: Compile with memory limit support. [default=no]

--enable-safe-mode

PHP 3, PHP 4: Enable safe mode by default.

--enable-satellite

PHP 3: Option not available in PHP 3

PHP 4: Enable CORBA support via Satellite (Requires ORBit)

--enable-shared[=PKGS]

PHP 3: Option not available in PHP 3

PHP 4: build shared libraries [default=yes]

--enable-sigchild

PHP 3, PHP 4: Enable PHP's own SIGCHLD handler.

--enable-static[=PKGS]

PHP 3: Option not available in PHP 3

PHP 4: build static libraries [default=yes]

--enable-sysvsem

PHP 3, PHP 4: Enable System V semaphore support.

--enable-sysvshm

PHP 3, PHP 4: Enable the System V shared memory support

--enable-trans-sid

PHP 3: Option not available in PHP 3

PHP 4: Enable transparent session id propagation

--with-cdb[=DIR]

PHP 3, PHP 4: Include CDB support

--with-config-file-path=PATH

PHP 3: Sets the path in which to look for php3.ini. Defaults to /usr/local/lib

PHP 4: Sets the path in which to look for php.ini. Defaults to /usr/local/lib

--with-cpdflib[=DIR]

PHP 3: Include ClibPDF support. DIR is the ClibPDF install directory, defaults to /usr/local.

PHP 4: Include cpdflib support (requires cpdflib >= 2). DIR is the cpdfllib install directory, defaults to /usr.

--with-esoob[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include Easysoft OOB support. DIR is the OOB base install directory, defaults to /usr/local/easysoft/oob/client.

--with-exec-dir[=DIR]

PHP 3, PHP 4: Only allow executables in DIR when in safe mode defaults to /usr/local/php/bin

--with-fdftk[=DIR]

PHP 3, PHP 4: Include fdftk support. DIR is the fdftk install directory, defaults to /usr/local.

--with-gnu-ld

PHP 3: Option not available in PHP 3

PHP 4: assume the C compiler uses GNU ld [default=no]

--with-icap[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include ICAP support.

--with-imap[=DIR]

PHP 3, PHP 4: Include IMAP support. DIR is the IMAP include and c-client.a directory.

--with-imsp[=DIR]

PHP 3: Include IMSP support (DIR is IMSP's include dir and libimsp.a dir).

PHP 4: Option not available in PHP 4

--with-java[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include Java support. DIR is the base install directory for the JDK. This extension can only be built as a shared dl.

--with-kerberos[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include Kerberos support in IMAP.

--with-mcal[=DIR]

PHP 3, PHP 4: Include MCAL support.

--with-mcrypt[=DIR]

PHP 3, PHP 4: Include mcrypt support. DIR is the mcrypt install directory.

--with-mhash[=DIR]

PHP 3, PHP 4: Include mhash support. DIR is the mhash install directory.

--with-mm[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include mm support for session storage

--with-mod_charset

PHP 3, PHP 4: Enable transfer tables for mod_charset (Rus Apache).

--with-pdflib[=DIR]

PHP 3: Include pdflib support (tested with 0.6 and 2.0). DIR is the pdflib install directory, which defaults to /usr/local.

PHP 4: Include pdflib 3.x support. DIR is the pdflib install directory, which defaults to /usr/local.

--with-readline[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include readline support. DIR is the readline install directory.

--with-regex=TYPE

PHP 3: Option not available in PHP 3

PHP 4: regex library type: system, apache, php

--with-servlet[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include servlet support. DIR is the base install directory for the JSDK. This SAPI requires that the Java extension be built as a shared dl.

--with-swf[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include swf support

--with-system-regex

PHP 3: Do not use the bundled regex library

PHP 4: (deprecated) Use system regex library

--with-tsrm-pth[=pth-config]

PHP 3: Option not available in PHP 3

PHP 4: Use GNU Pth.

--with-tsrm-pthreads

PHP 3: Option not available in PHP 3

PHP 4: Use POSIX threads (default)

--with-x

PHP 3: use the X Window System

PHP 4: Option not available in PHP 4

--with-zlib-dir[=DIR]

PHP 3: zlib dir for pdflib 2.0 or include zlib support

PHP 4: zlib dir for pdflib 3.x or include zlib support

--with-zlib[=DIR]

PHP 3, PHP 4: Include zlib support (requires zlib >= 1.0.9). DIR is the zlib install directory, defaults to /usr.

--without-pcre-regex

PHP 3: Don't include Perl Compatible Regular Expressions support

PHP 4: Do not include Perl Compatible Regular Expressions support. Use --with-pcre-regex=DIR to specify DIR where PCRE's include and library files are located, if not using bundled library.

--without-posix

PHP 3: Don't include POSIX functions

PHP 4: Option not available in PHP 4; use --disable-posix instead.

Networking

--with-curl[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include CURL support

--enable-ftp

PHP 3: Option not available; use --with-ftp instead.

PHP 4: Enable FTP support

--with-ftp

PHP 3: Include FTP support.

PHP 4: Option not available; use --enable-ftp instead

--disable-url-fopen-wrapper

PHP 3, PHP 4: Disable the URL-aware fopen wrapper that allows accessing files via http or ftp.

Warning

This switch is only available for PHP versions up to 4.0.3, newer versions provide an INI parameter called allow_url_fopen instead of forcing you to decide upon this feature at compile time.

--with-mod-dav=DIR

PHP 3, PHP 4: Include DAV support through Apache's mod_dav, DIR is mod_dav's installation directory (Apache module version only!)

--with-openssl[=DIR]

PHP 3, PHP 4: Include OpenSSL support in SNMP.

--with-snmp[=DIR]

PHP 3, PHP 4: Include SNMP support. DIR is the SNMP base install directory, defaults to searching through a number of common locations for the snmp install. Set DIR to shared to build as a dl, or shared,DIR to build as a dl and still specify DIR.

--enable-ucd-snmp-hack

PHP 3, PHP 4: Enable UCD SNMP hack

--enable-sockets

PHP 3: Option not available in PHP 3

PHP 4: Enable sockets support

--with-yaz[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include YAZ support (ANSI/NISO Z39.50). DIR is the YAZ bin install directory

--enable-yp

PHP 3: Option not available; use --with-yp instead.

PHP 4: Include YP support

--with-yp

PHP 3: Include YP support

PHP 4: Option not available; use --enable-yp instead.

PHP Behaviour

--enable-magic-quotes

PHP 3, PHP 4: Enable magic quotes by default.

--disable-short-tags

PHP 3, PHP 4: Disable the short-form <? start tag by default.

--enable-track-vars

PHP 3: Enable GET/POST/Cookie track variables by default.

PHP 4: Option not available in PHP 4; as of PHP 4.0.2, track_vars is always on.

Server

--with-aolserver-src=DIR

PHP 3: Option not available in PHP 3

PHP 4: Specify path to the source distribution of AOLserver

--with-aolserver=DIR

PHP 3: Option not available in PHP 3

PHP 4: Specify path to the installed AOLserver

--with-apache[=DIR]

PHP 3, PHP 4: Build Apache module. DIR is the top-level Apache build directory, defaults to /usr/local/etc/httpd.

--with-apxs[=FILE]

PHP 3, PHP 4: Build shared Apache module. FILE is the optional pathname to the Apache apxs tool; defaults to apxs.

--enable-versioning

PHP 3: Take advantage of versioning and scoping Provided by Solaris 2.x and Linux

PHP 4: Export only required symbols. See INSTALL for more information

--with-fhttpd[=DIR]

PHP 3, PHP 4: Build fhttpd module. DIR is the fhttpd sources directory, defaults to /usr/local/src/fhttpd.

--with-nsapi=DIR

PHP 3: Option not available in PHP 3

PHP 4: Specify path to the installed Netscape

--with-phttpd=DIR

PHP 3: Option not available in PHP 3

PHP 4:

--with-pi3web=DIR

PHP 3: Option not available in PHP 3

PHP 4: Build PHP as a module for use with Pi3Web.

--with-roxen=DIR

PHP 3: Option not available in PHP 3

PHP 4: Build PHP as a Pike module. DIR is the base Roxen directory, normally /usr/local/roxen/server.

--enable-roxen-zts

PHP 3: Option not available in PHP 3

PHP 4: Build the Roxen module using Zend Thread Safety.

--with-thttpd=SRCDIR

PHP 3: Option not available in PHP 3

PHP 4:

--with-zeus=DIR

PHP 3: Option not available in PHP 3

PHP 4: Build PHP as an ISAPI module for use with Zeus.

Text and language

--with-aspell[=DIR]

PHP 3, PHP 4: Include ASPELL support.

--with-gettext[=DIR]

PHP 3, PHP 4: Include GNU gettext support. DIR is the gettext install directory, defaults to /usr/local

--with-pspell[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include PSPELL support.

--with-recode[=DIR]

PHP 3: Include GNU recode support.

PHP 4: Include recode support. DIR is the recode install directory.

XML

--with-dom[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include DOM support (requires libxml >= 2.0). DIR is the libxml install directory, defaults to /usr

--enable-sablot-errors-descriptive

PHP 3: Option not available in PHP 3

PHP 4: Enable Descriptive errors

--with-sablot[=DIR]

PHP 3: Option not available in PHP 3

PHP 4: Include Sablotron support

--enable-wddx

PHP 3: Option not available in PHP 3

PHP 4: Enable WDDX support

--disable-xml

PHP 3: Option not available in PHP 3; XML functionality is not built in by default. Use --with-xml to turn it on.

PHP 4: Disable XML support using bundled expat lib

--with-xml

PHP 3: Include XML support

PHP 4: Option not available; XML support is built in by default. Use --disable-xml to turn it off.

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