<?php echo ‘testClass‘; echo ‘<br><hr>‘; $className = ‘TestClass‘; $methodName = ‘c_out‘; $newObj = new $className();
if(method_exists($newObj,$methodName))
{ $newObj ->$methodName(123);
}
else
{
echo ‘要调用的方法在对象中不存在‘;
} class TestClass { public function c_out($a) { echo ‘this is c_out‘.$a; } } ?>
原文：http://www.cnblogs.com/ribavnu/p/4453489.html