(PECL runkit7 >= Unknown)
runkit7_method_rename — Dynamically changes the name of the given method
$class_name, string $source_method_name, string $target_method_name): bool注意: 此函数不能用来操作当前正常运行（或运行链上）的方法。
class_nameThe class in which to rename the method
source_method_nameThe name of the method to rename
target_method_nameThe new name to give to the renamed method
成功时返回 true， 或者在失败时返回 false。
示例 #1 runkit7_method_rename() example
<?php
class Example {
function foo() {
return "foo!\n";
}
}
// Rename the 'foo' method to 'bar'
runkit7_method_rename(
'Example',
'foo',
'bar'
);
// output renamed function
echo (new Example)->bar();
?>以上示例会输出：
foo!