We are moving our forum in GitHub Discussions. For questions about Phalcon v3/v4 you can visit here and for Phalcon v5 here.

Solved thread

This post is marked as solved. If you think the information contained on this thread must be part of the official documentation, please contribute submitting a pull request to its repository.

Phalcon initialize problem on php 7.2.0

hello. I've downloaded phalcon_x86_vc15_php7.2.0_3.3.0.zip from


i'm using latest xampp which uses php 7.2.0.

But getting this error.

PHP Warning: PHP Startup: phalcon: Unable to initialize module\nModule compiled with build ID=API20170718,TS,19.12.25831\nPHP compiled with build ID=API20170718,TS,VC15\nThese options need to match\n in Unknown on line 0


probably you downloaded the wrong one, thread safe | not trade safe ?

edited Dec '17

probably you downloaded the wrong one, thread safe | not trade safe ?

i tried nts already but getting errors as below

this error occurs when i add extension code as


PHP Warning: PHP Startup: Unable to load dynamic library 'php_phalcon.dll' (tried: C:\xampp\php\ext\phalcon (module not found), C:\xampp\php\ext\php_phalcon.dll (not found)) in Unknown on line 0

but i seeing php_phalcon.dll in C:\xampp\php\ext\ directory

It's fixed now. Download new dlls.