如何在php中从字符串中分离字母和数字 [英] How to separate letters and digits from a string in php

问题描述

我有一个字符串，由字母和数字组成.对于我的应用程序，我必须用字母和数字分隔一个字符串:例如:如果我的字符串是"12jan"，则必须分别获得"12""jan".

I have a string which is combination of letters and digits. For my application i have to separate a string with letters and digits: ex:If my string is "12jan" i hav to get "12" "jan" separately..

推荐答案

您可以使用preg_split在以数字开头和以以下字母开头的点处分割字符串:

You can make use of preg_split to split your string at the point which is preceded by digit and is followed by letters as:

$arr = preg_split('/(?<=[0-9])(?=[a-z]+)/i',$str);

实施中的代码

<?php
$str = '12jan';
$arr = preg_split('/(?<=[0-9])(?=[a-z]+)/i',$str);                                                               
print_r($arr);

结果:

Array
(
    [0] => 12
    [1] => jan
)

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