Usage example of call_user_func_array function in php

function test($a, $b)
{
echo 'Test 1:'.$a.$b;
}
//Call the test method, array("asp", 'php') corresponds to the corresponding parameters
call_user_func_array('test', array("asp", 'php'));
?>

2. Call the method in the class through the class

class test2{
function phpSay($a, $b)
{
echo 'Test 2:'.$a.$b;
}
}
$o = new test2 ();
//Equivalent to: $o->phpSay('php','Hello');
call_user_func_array(array(&$o, 'phpSay'), array('php','Hello' ));
?>