如何在PHP中获取字符串的最后一部分

Question

I have many strings that follow the same convention:

this.is.a.sample
this.is.another.sample.of.it
this.too

What i want to do is isolate the last part. So i want "sample", or "it", or "too".

What is the most efficient way for this to happen. Obviously there are many ways to do this, but which way is best that uses the least resources (CPU and RAM).

Answer 1

$string = "this.is.another.sample.of.it";
$contents = explode('.', $string);

echo end($contents); // displays 'it'