regular expression to remove part of string

Question

I am trying to instert an integer into a form. Users are asked to input there promo number which is in the format 12.2-9999. I only want to insert 9999 into the column in my database but I am getting -9999 in the columns. I am not sure if I should use preg_replace or something else here?

Answer 1

Just use explode() , like so:

list( , $promo) = explode( '-', '12.2-9999');

Now $promo will contain 9999 .

Answer 2

以下正则表达式将检查最后一个-并将数字捕获到末尾（根据示例为9999 ）：

/-(\d+)$/