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php 除了字符串

Jun 13, 2016 pm 12:36 PM
rtrim str strlen substr

php 去掉字符串

今天项目中用到,去掉字符串中的最后一个字符

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:

$str = "1,2,3,4,5,6,";

$newstr = substr($str,0,strlen($str)-1);

echo $newstr;

系统自带的函数也可实现这样的效果,两种方法:

1) substr($str, 0, -1)

2)rtrim($str, ",")

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