php 我如何爆炸一个整数
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How do I explode an integer
提问by chriscandy
the answer to this could be easy. But I'm very fresh to programming. So be gentle...
答案很简单。但我对编程很陌生。所以要温柔...
I'm at work trying to do a quick fix for one of your customers. I want to get the total numbers of digits in a integer, and then explode the integer:
我正在工作，试图为您的一位客户快速修复。我想得到一个整数中的总位数，然后分解这个整数：
rx_freq = 1331000000 ( = 10 )
$array[0] = 1
$array[1] = 3
.
.
$array[9] = 0
rx_freq = 990909099 ( = 9 )
$array[0] = 9
$array[1] = 9
.
.
$array[8] = 9
I'm not able to use explode, as this function need a delimiter. I've searched the eyh'old Google and Stackoverflow.
我不能使用explode，因为这个函数需要一个分隔符。我搜索了 eyh'old 谷歌和 Stackoverflow。
Basically: How do I explode an integer without delimiter, and how do I find the number of digits in an integer.
基本上：如何在没有分隔符的情况下分解整数，以及如何找到整数中的位数。
回答by mfonda
$array = str_split($int)and $num_digits = strlen($int)should work just fine.
$array = str_split($int)并且$num_digits = strlen($int)应该工作得很好。
回答by ThiefMaster
Use the str_split()function:
使用str_split()函数：
$array = str_split(1331000000);
Thanks to PHP's automated type coercion the passed int will be converted to a string automatically. But if you want you can also add an explicit cast.
由于 PHP 的自动类型强制转换，传入的 int 将自动转换为字符串。但是如果你愿意，你也可以添加一个显式的演员表。
回答by Golden Pelican
I know this is old, but just came across it. Perhaps it can help someone else.
我知道这是旧的，但刚刚遇到它。也许它可以帮助别人。
First convert the number to a string. This is very easy to do.
$number = 45675;//number you want to split
首先将数字转换为字符串。这很容易做到。
$number = 45675;//要拆分的数字
$nums = ""; //Declare a variable with empty set.
$nums .= $number; //concatenate the empty string with the integer $number You can also use
$nums = $nums.$number; // this and the expression above do the same thing choose whichever you
//like.. This concatenation automatically converts integer to string
$nums[0] is now 4, $nums[1] is now 5, etc..
$length = strlen($nums); // This is the length of your integer.
$target = strlen($nums) -1; // target the last digit in the string;
$last_digit = $nums[$target]; // This is the value of 5. Last digit in the (now string)
Hope This helps someone!
希望这对某人有帮助！
