(PECL runkit >= 0.7.0)
runkit_method_rename — Dynamically changes the name of the given method
$classname
, string $methodname
, string $newname
) : boolNote: 此函数不能用来操作当前正常运行（或运行链上）的方法。
classnameThe class in which to rename the method
methodnameThe name of the method to rename
newnameThe new name to give to the renamed method
成功时返回 TRUE， 或者在失败时返回 FALSE。
Example #1 runkit_method_rename() example
<?php
class Example {
function foo() {
return "foo!\n";
}
}
// Rename the 'foo' method to 'bar'
runkit_method_rename(
'Example',
'foo',
'bar'
);
// output renamed function
echo Example::bar();
?>
以上例程会输出：
foo!