试图preg_split大写和数字

Question

I'm trying to learn regex and get an array of words / numbers from these possible strings:

String: 'getUser100Profile'
Return: array('get', 'user', '100', 'profile')

String: 'put100'
Return: array('put', '100')

String: 'post'
Return: array('post')

Here is my snippet which is not working:

$name = 'get100';
$names = preg_split('/(?=[A-Z\d+])/', $name);

Return: array('get', '1', '0', '0');
Should return: array('get', '100');

Answer 1

You need to check the precedent character. You can use this pattern:

$names = preg_split('/(?=[A-Z])|(?<=\D)(?=\d)|(?<=\d)(?=\D)/', $name);