php 从数字字符串中提取最后两个字符
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Extracting last two characters from a numeric string
提问by Kinz
Okay. Say I have string
好的。说我有字符串
'193'
And I want to remove the last numbers and store them in an array so I can do operations with them. I know substr can delete the 2 characters, but I'm not sure how to store them after they've been removed..
我想删除最后一个数字并将它们存储在一个数组中，以便我可以对它们进行操作。我知道 substr 可以删除这 2 个字符，但是我不确定在删除它们后如何存储它们。
回答by j08691
$end[] = substr("193", -2);
Will store "93" in the array $end
将“93”存储在数组 $end 中
回答by capi
Why not treat it as a number (your question said it's a numeric string) ?
为什么不把它当作一个数字（你的问题说它是一个数字字符串）？
$last2 = $str%100;
回答by kingjeffrey
$array = str_split('193'); // $array now has 3 elements: '1', '9', and '3'
array_shift($array); // this removes '1' from $array and leaves '9' and '3'
回答by Kieran Andrews
$str = "193";
$str_array = str_split($str);
$number_1 = array_pop($str_array); //3
$number_2 = array_pop($str_array); //9
