Search for a certain function in all helper files?

[eluser]Nummero2[/eluser]

Code:

$this->load->helpers();

foreach ($this as $B) {

if (function_exists('css_helper_test')) {
    echo "function available.<br />\n";
    break;
} else {
    echo "function NOT available.<br />\n";
}

}

Ok, if I search specifically for the function I find it for example (css_helper_test) but now how do I manage to search for my _helper_test context which I actually want.

How do I code that?

Code:

if (function_exists('?????_helper_test')) {

Greetins