如何从字符串末尾删除字符

Question

我有以下字符串： $string = "username, email, status, password,"编辑：如何删除的最后一次出现,字符从字符串？

Answer 1

$string = trim($string,",");

That would work. trim() on php.net

Answer 2

如果要从$string删除最后一个字符，可以使用以下命令：

$string = substr($string, 0, -1);

Answer 3

$rest = substr("abcdef", 0, -1);  // returns "abcde"

来自http://php.net/manual/en/function.substr.php

Answer 4

$string = substr($string, 0, -1);