Question

I have names like this:

$str = 'JAMES "JIMMY" SMITH'

I run strtolower, then ucwords, which returns this:

$proper_str = 'James "jimmy" Smith'

I’d like to capitalize the second letter of words in which the first letter is a double quote. Here’s the regexp. It appears strtoupper is not working – the regexp simply returns the unchanged original expression.

$proper_str = preg_replace('/"([a-z])/',strtoupper('$1'),$proper_str);

Any clues? Thanks!!

Answer 1

Use the e modifier to have the substitution be evaluated:

preg_replace('/"[a-z]/e', 'strtoupper("$0")', $proper_str)

Where $0 contains the match of the whole pattern, so " and the lowercase letter. But that doesn’t matter since the " doesn’t change when send through strtoupper.