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php 去掉字符串的最后一个字符

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HACK1949

By HACK1949,
in ios/Android development

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HACK1949

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在一个站长的空间看到这样的文章,觉得会有用,先记录下来

原字符串1,2,3,4,5,6,
去掉最后一个字符","，最终结果为1,2,3,4,5,6 

代码如下： 

  1. $str = "1,2,3,4,5,6,"; 
  2. $newstr = substr($str,0,strlen($str)-1); 
  3. echo $newstr; 
  4. //echo 1,2,3,4,5,6

系统自带的函数即可实现这样的效果，两种方法： 

  1. substr($str, 0, -1)
  2. //函数2
  3. rtrim($str, ",")
      https://www.cnblogs.com/yhyjy/archive/2012/02/22/2363008.html
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