I tried all the procedures to install the PHP Oracle client.
1) I installed the Client version 8 and 32 bits.
2) I uncommented oci in php.ini
3) Restarted Wamp:
4) Not sure if really installed but I got the references in php.ini:
5) But still cannot connect:
Tyhanks for any help
EDIT
Found these errors in php log: [16-Apr-2018 14:35:03 UTC] PHP Warning: PHP Startup: Unable to load dynamic library 'c:/wamp/bin/php/php5.5.12/ext/php_oci8.dll' - %1 is not a valid Win32 application.
in Unknown on line 0
[16-Apr-2018 14:35:03 UTC] PHP Warning: PHP Startup: Unable to load dynamic library 'c:/wamp/bin/php/php5.5.12/ext/php_oci8_11g.dll' - %1 is not a valid Win32 application.
in Unknown on line 0