PHP-从没有空格的字符串中解析单词?

My webpage has a variable, $currentPage. This is a string of the php token name of the page I'm currently on.

Example: All categories under the user section have names such as: uAdminNew, uAdminEdit, ect..

I would like for a way to parse out the uAdmin and just determine what is the last word (New and Edit) and call upon functions from there.

I have my navigation system working through these names, therefore I can't change the names or I would to make it easier to parse. Such as adding delimiters.

Is this something only Regex can solve or is there a simpler solution I'm missing? If this is Regex could you explain or provide a link as to how I would go about using it to test against a specific list of strings? I'm very new to it.

Does the pagename always start with uAdmin? If so, you could split the string by "uAdmin" with explode():

$page   = 'uAdminEdit';
echo explode('uAdmin', $page)[1]; //Output: Edit

Or simply remove "uAdmin" with str_replace():

$page   = 'uAdminEdit';
echo str_replace('uAdmin', '', $page); //Output: Edit

For example, so:

$str = 'uAdminEdit';    
$ar = preg_match('/([A-Z][^A-Z]+$)/', $str, $m);    
echo $m[1]; // Edit

If you just want the section after uAdmin, use the regex capture groups

preg_match('/uAdmin(.*)/', $sub, $matches);
echo $matches[1]