error_log = C:/Program Files (x86)/wamp2/logs/php_error.log
<?php mysql_connect( 'localhost', 'root', '' ); ?>
Fatal error: Call to undefined function mysql_connect() in C:\***\test_connection_mysql.php on line 2(Évidemment, c'est moi qui ait mis les astérisques, un minimum de vie privée ^^)