php_embed and call_user_function

Im trying to call call_user_function() from inside php_embed.
It always returns FAILURE...

Here is the .c file I am trying to use
(minus the header files, for clarity...)

int main(int argc, char **argv)
{
zval *func;
zval *zret;
void ***trsm_ls;

if ( php_embed_init(1, argv PTSRMLS_CC) == FAILURE) {
	puts("Failed to load");
	return;
}


MAKE_STD_ZVAL(func);
MAKE_STD_ZVAL(zret);

zend_eval_string("include('test.php');", NULL, "TEST");

func->type = IS_STRING;
func->value.str.len = 4;
func->value.str.val = "test";

call_user_function(CG(function_table),NULL,func,zret,0,NULL TSRMLS_CC);


php_embed_shutdown(TSRMLS_C);

}

and here is a test php file:

<?php

function test()
{
print "Hello World\n";
}

?>

I also did a direct zend_hash_find() on CG(function_table) and EG(function_table)
for test, with no result.