What's needed for PHP's mcrypt_decrypt()?

Question

I have a script that uses mcrypt_decrypt() function, but I get the following error

Fatal error: Call to undefined function mcrypt_decrypt()

What modules/libraries do I need to include to use this function? Or is there another reason I'm getting the error?

Thanks

score 16 · Answer 1 · answered Feb 03 '10 at 17:22

16

sudo apt-get install php5-mcrypt

works on ubuntu.

answered Feb 03 '10 at 17:22

Ben

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for the 'simple' amongst us this also requires an apache restart – icc97 Jul 30 '12 at 11:43
as icc97 says, an apache restart is needed, not enough with a reload :) – Packet Tracer Jul 21 '14 at 09:58

score 6 · Accepted Answer · answered Mar 12 '09 at 17:39

6

Please see:

You need to compile your PHP with --with-mcrypt[=DIR] and have libmcrypt Version 2.5.6 or greater on your machine.

answered Mar 12 '09 at 17:39

Stefan Gehrig

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score 5 · Answer 3 · answered May 27 '15 at 10:02

5

Configure php5-mcrypt with php5-fpm (Ubuntu 14.04)

I’m going to assume you already have nginx and php-fpm installed and running.

php5-mcrypt should be installed already (it comes bundled with php5-fpm). Just for safety, apt-get install php5-mcrypt

Create symlink to mods-avaliable, ln -s /etc/php5/conf.d/mcrypt.ini /etc/php5/mods-available/mcrypt.ini

Enable it. php5enmod mcrypt

Restart php-fpm, service php5-fpm restart

Restart nginx, service nginx restart

Done!

answered May 27 '15 at 10:02

user28763

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Thanks for this answer, worked perfectly for me where other answers were giving me trouble. – zgc7009 Jan 11 '16 at 20:51
FINALLY ... someone who knows wtf they are talking about .. only took like 4 stack exchange threads to find this one .. THANK YOU!!! – Ryan Ellis May 17 '16 at 21:23

score 2 · Answer 4 · answered Mar 12 '09 at 17:38

From the manual:

You need to compile PHP with the --with-mcrypt[=DIR] parameter to enable this extension. DIR is the mcrypt install directory. Make sure you compile libmcrypt with the option --disable-posix-threads.

Generally if PHP says a function is undefined, it means you need to compile in some library.

score 0 · Answer 5 · answered Aug 24 '12 at 08:22

0

I upgraded PHP to 5.4 via http://php-osx.liip.ch/ and it worked.

answered Aug 24 '12 at 08:22

Nico Prat

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score 0 · Answer 6 · answered Jan 31 '13 at 09:29

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for php 5.3.X

depends on availability of yum mcrypt package , you could use yum packeages

like this : yum install php53-mcrypt and restart httpd

answered Jan 31 '13 at 09:29

masoud2011

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score 0 · Answer 7 · answered Mar 22 '14 at 21:33

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And be carefull about the folder in the phpinfo page : "Scan this dir for additional .ini files" and the next : "Additional .ini files parsed ".

answered Mar 22 '14 at 21:33

tsalm

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score 0 · Answer 8 · edited May 09 '14 at 15:31

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After upgrading to php 5.4 running (Works)

sudo php5enmod mcrypt
sudo service apache2 restart

edited May 09 '14 at 15:31

bummi

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answered May 09 '14 at 15:24

Danny Muñoz

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score 0 · Answer 9 · answered Aug 22 '11 at 10:16

0

I above doesn't work, you can try this:

create mcrypt.ini file in /etc/php5/conf.d with content

extension=mcrypt.so

answered Aug 22 '11 at 10:16

Nebril

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What's needed for PHP's mcrypt_decrypt()?

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