Question

I’d like to capitalize a string like:

¿"hello"?

I want my function to return

¿"Hello"?

I’ve tried with regex and preg_match, with no luck…
Here it is my previous question, related with this one:
“preg_match is matching two characters when it should only match one”

Thank you all!

Answer 1

You can do it using preg_replace_callback:

preg_replace_callback('/^([^a-z]*)([a-z])/i', function($matches){
    return $matches[1] . strtoupper($matches[2]);
}, '¿"hello"?');

// ¿"Hello"?