Informix 函数

ifx_affected_rows — Get number of rows affected by a query
ifx_blobinfile_mode — Set the default blob mode for all select queries
ifx_byteasvarchar — Set the default byte mode
ifx_close — Close Informix connection
ifx_connect — Open Informix server connection
ifx_copy_blob — Duplicates the given blob object
ifx_create_blob — Creates an blob object
ifx_create_char — Creates an char object
ifx_do — Execute a previously prepared SQL-statement
ifx_error — Returns error code of last Informix call
ifx_errormsg — Returns error message of last Informix call
ifx_fetch_row — Get row as an associative array
ifx_fieldproperties — List of SQL fieldproperties
ifx_fieldtypes — List of Informix SQL fields
ifx_free_blob — Deletes the blob object
ifx_free_char — Deletes the char object
ifx_free_result — Releases resources for the query
ifx_get_blob — Return the content of a blob object
ifx_get_char — Return the content of the char object
ifx_getsqlca — Get the contents of sqlca.sqlerrd[0..5] after a query
ifx_htmltbl_result — Formats all rows of a query into a HTML table
ifx_nullformat — Sets the default return value on a fetch row
ifx_num_fields — Returns the number of columns in the query
ifx_num_rows — Count the rows already fetched from a query
ifx_pconnect — Open persistent Informix connection
ifx_prepare — Prepare an SQL-statement for execution
ifx_query — Send Informix query
ifx_textasvarchar — Set the default text mode
ifx_update_blob — Updates the content of the blob object
ifx_update_char — Updates the content of the char object
ifxus_close_slob — Deletes the slob object
ifxus_create_slob — Creates an slob object and opens it
ifxus_free_slob — Deletes the slob object
ifxus_open_slob — Opens an slob object
ifxus_read_slob — Reads nbytes of the slob object
ifxus_seek_slob — Sets the current file or seek position
ifxus_tell_slob — Returns the current file or seek position
ifxus_write_slob — Writes a string into the slob object

User Contributed Notes

roger at wzero dot com dot br 02-Mar-2007 03:41


Unfortunately the informix extension has been moved to PECL but has no maintainer. 

http://devzone.zend.com/node/view/id/1621#Heading11



In practic terms, it has been moved but is not available in PECL yet.



It's sad. I have a big client who uses this extension for more than 6 years and now has to change a code base of 500,000 lines of code or install an old version of PHP in the new server. They recently bought a redundant, double cpu, 8 gb ram, scsi disk server and will not be happy to run old versions of software with unmaintained extensions.

Ian McMurray 15-Apr-2005 10:02


Installation on RedHat Fedore Core (or in that matter any Linux OS which has a version of glibc  of 2.3.* ~or above~) will need to have the latest Informix CSDK (downloadable from IBM). 2.90.UC1.LINUX at the time of this post. 



http://www-306.ibm.com/software/data/informix/tools/connect/



I was unable to make PHP with v2.80 of the csdk (as it complained about mktemp being dangerous and how ctype was undefined. After downloading csdk 2.90, I was able to make PHP with no problems at all. (--with-informix).



There goes 2 days of my life!



Feel free to drop me an email at ian_at_devtonic_dot_com if you have any questions.

drsound 31-Oct-2004 07:20


I just wrote a mini-HOWTO about adding Informix support to mod_php running on a Gentoo Linux server (x86). I wanted to post it here but it was too long. You can find it on http://forums.gentoo.org/viewtopic.php?t=245249 (just in case for some reason they change the thread number, the title is "HOWTO: PHP Informix client support").

jeff at domintcom dot com 27-Oct-2002 08:06


add the following to /etc/profile (right before unset i (adjust to your needs)



export INFORMIXDIR=/opt/informix

export ODBCINI=/usr/local/etc/odbc.ini

export INFORMIXSERVER=m_srv



then add the following to your httpd.conf



PassEnv INFORMIXDIR

PassEnv ODBCINI 

PassEnv INFORMIXSERVER



(or you can use SetEnv SetEnv INFORMIXDIR /opt/informix  etc.)

cornecNOSPAM at reach dot NO_SPAM dot com 15-Oct-2002 05:14


I upgraded to csdk-2.70.UC3-1 and got the following error when trying to start apache:



Syntax error on line 205 of /usr/local/apache/conf/httpd.conf:

Cannot load /usr/local/apache/libexec/libphp4.so into server: /opt/informix/lib/esql/libifgen.so: undefined symbol: stat

/usr/local/apache/bin/apachectl start: httpd could not be started



This machine has glibc 2.3.5



The following fixed the problem for me (surely there's a better fix) but i'm not sure how it might affect other programs linked to libifgen



mkdir /tmp/ifx

cd /tmp/ifx

ar x $INFORMIXDIR/lib/esql/libifgen.a

gcc -shared -o libifgen.so *.o

cp libifgen.so $INFORMIXDIR/lib/esql

programacion at afinformatica dot com 27-May-2002 04:38


I have compile php-4.0.6 with informix support (dynamic) and when I try to 

start apache, it gives me this error message:



Syntax error on line 246 of /etc/httpd/httpd.conf:

Cannot load /usr/lib/apache/libphp4.so into server: /home/informix7/lib/esql/lib

ifgen.so: undefined symbol: stat

/usr/sbin/apachectl start: httpd could not be started

isaac dot hopley at morton-fraser dot NO_SPAM dot com 15-Nov-2001 01:54


If you are tring to access an Informix Online 5.x server over the 


network (ie from a webserver) using PHP, be aware that Online 


doesn't support network communications as standard unlike later versions.





You need the Informix product 'I-Star' on your Online server.


This will allow your webserver with the informix client SDK 


installed to communicate natively (ESQL).





Thanks go to Mario @ PRS for this info.

old dot wolf at project-w dot com 27-Jul-2001 08:40


An intermittent SQL error -25580 is caused by using the wrong glibc version in Linux. 





I have this working correctly in Linux (x86) with Informix Client SDK for 2.70UC-1 for Linux, with glibc 2.1.3. 





Originally I had glibc 2.1.1 (Red Hat 6), which gave the intermittent error, but upgrading glibc fixed it.





The Informix Client SDKs can be downloaded from www.informix.com (you need to own an Informix database to log on), and glibc is at ftp://ftp.gnu.org/gnu/glibc .

MarkRoedel at letu dot edu 03-Mar-2001 01:19


There's also a FreeBSD version of the client libraries that'll work with PHP.  It's not available for download from their website, but you can request a copy (cd or electronic delivery) by calling Informix Customer Support at 1-800-274-8184 option 3.





Some customer service reps know more about alternative operating systems than others, so you may have to do a bit of educating before they can locate the product in their database, but it's definitely there.





My e-mail confirmation referred to it as "Orderable Part Number 100-15871-204057-1", although that number may be specific to the electronically-delivered edition.

robernet at music-images dot com 26-Sep-2000 04:29


Verify with phpinfo() that you have informix module compiled in php.


Also verify that env vars INFORMIXDIR, INFORMIXSERVER, LD_LIBRARY_PATH are set, and that PATH have a route to your informix subdir.

Informix 函数

Table of Contents

User Contributed Notes