php explode at capital letters?

Question

I have strings like:

$a = \'helloMister\';
$b = \'doggyWaltz\';
$c = \'bumWipe\';
$d = \'pinkNips\';

How can I explode at the capital lette

Answer 1

If you want to split helloMister into hello and Mister you can use preg_split to split the string at a point just before the uppercase letter by using positive lookahead assertion:

$pieces = preg_split('/(?=[A-Z])/',$str);

and if you want to split it as hello and ister you can do:

$pieces = preg_split('/[A-Z]/',$str);