调用函数<?php function barber($type) { echo "You wanted a $type haircut, no problem"; } call_user_func('barber', "mushroom"); call_user_func('barber', "shave"); ?> Object methods may also be invoked statically using this function by passing array($objectname, $methodname) to the function parameter. <?php class myclass { function say_hello() { echo "Hello!\n"; } }$classname = "myclass";call_user_func(array($classname, 'say_hello')); ?> 注: Note that the parameters for call_user_func() are not passed by reference. <?php function increment(&$var) { $var++; }$a = 0; call_user_func('increment', $a); echo $a; // 0call_user_func_array('increment', array(&$a)); // You can use this instead echo $a; // 1 ?>
function barber($type)
{
echo "You wanted a $type haircut, no problem";
}
call_user_func('barber', "mushroom");
call_user_func('barber', "shave");
?> Object methods may also be invoked statically using this function by passing array($objectname, $methodname) to the function parameter.
<?php
class myclass {
function say_hello()
{
echo "Hello!\n";
}
}$classname = "myclass";call_user_func(array($classname, 'say_hello'));
?> 注: Note that the parameters for call_user_func() are not passed by reference.
<?php
function increment(&$var)
{
$var++;
}$a = 0;
call_user_func('increment', $a);
echo $a; // 0call_user_func_array('increment', array(&$a)); // You can use this instead
echo $a; // 1
?>