php - 从左和从右修剪字符串

Question

如何从字符串的左侧和右侧截取 5 个字符。例如

4k2l3k4jc9l3kancie9

应该修剪和保留的是:

4k2l3      k4jc9l3ka     ncie9
  ^            ^           ^
remove        keep       remove

Answer 1

$string = substr($string, 5, -5);