note 95898 modified in ifx.installation by danbrown

As of PHP-5.1.0 informix support was moved to PECL and removed from the PHP bundle, thus --with-informix is no longer a valid configuration command. http://cvs.php.net/viewvc.cgi/pecl/informix/ Contains the latest informix package. For *NIX machines: 1) Download each file into the same directory 2) cd to that directory 3) phpize 4) ./configure 5) make 6) make install 7) move the generated informix.so file to your php modules directory 8) add extension=informix.so to php.ini 9) add [Informix] section to php.ini file with defintions 10) restart Apache check phpinfo() for 'informix' with the details similar to: informix 
Informix support enabled 
Active Persistent links 0 
Active links 0 
ESQL/C Version 3.00 NOTE: Before running phpize to build the php informix module export LDFLAGS=$INFORMIXDIR/lib/esql/checkapi.o this will tell the compilation of the module to include this necessary file, for use in building the informix.so file --was-- As of PHP-5.1.0 informix support was moved to PECL and removed from the PHP bundle, thus --with-informix is no longer a valid configuration command. http://cvs.php.net/viewvc.cgi/pecl/informix/ Contains the latest informix package. For *NIX machines: 1) Download each file into the same directory 2) cd to that directory 3) phpize 4) ./configure 5) make 6) make install 7) move the generated informix.so file to your php modules directory 8) add extension=informix.so to php.ini 9) add [Informix] section to php.ini file with defintions 10) restart Apache check phpinfo() for 'informix' with the details similar to: informix 
Informix support enabled 
Active Persistent links 0 
Active links 0 
ESQL/C Version 3.00 NOTE: If you get the following error: "symbol lookup error: /opt/informix/lib/esql/libifsql.so: > undefined symbol: ifx_checkAPI " Link in the file: $INFORMIXDIR/lib/esql/checkapi.o which contains that function. http://php.net/manual/en/ifx.installation.php