OCI8 in PHP 7.0 with Xampp 32bit

I'm using xampp on windows 7, PHP version is at 7.0.15. I installed the Oracle Instant Client (32bits tbm) and then extracted into the "ext" folder of php version 2.1.3 of OCI8 according to this site ( link ). The problem is that after doing the whole process, in phpinfo () does not display the OCI8 section, so it is not actually connected / installed. Thank you very much in advance!

As in php.ini: extension = php_oci8_12c.dll; Use with Oracle Database 12c Instant Client

Message when I put the command "php -m":

    PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext\php_oci8_12c.dll' - NÒo foi possÝvel encontrar o m¾dulo especificado.
 in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library 'C:\xampp\php\ext\php_oci8_12c.dll' - NÒo foi possÝvel encontrar o m¾dulo especificado.
 in Unknown on line 0
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