如何在php的文本末尾删除","？

Question

我有一个文字:

"2G Network":"GSM 850","3G Network":"HSDPA 850",

如何删除PHP中的文本末尾的","

"2G Network":"GSM 850","3G Network":"HSDPA 850"

Answer 1

使用 rtrim()

$str = rtrim($str, ',');