Making the first letter of every sentence upper case using ucfirst

Question

I'm trying to make the first letter of every sentence to be upper case while keeping the punctuation marks. I have tried ucfirst, but it only makes the first letter of the string uppercase, and not every other sentences. How do I fix this?

$text = "yes. are you listening to me? huh?!"
$text = ucfirst($text);

echo $text;

Expected Output:

Yes. Are you listening to me? Huh?!"

Actual Output:

Yes. are you listening to me? huh?!"

the manual page for this very function has several user functions to do this — , Aug 28 '15 at 02:19
like this one http://php.net/manual/en/function.ucfirst.php#86902 — ElefantPhace, Aug 28 '15 at 02:20
possible duplicate of [How to capitalize first letter of first word in a sentence?](http://stackoverflow.com/questions/5383471/how-to-capitalize-first-letter-of-first-word-in-a-sentence) — Ngô Văn Thao, Aug 28 '15 at 02:44

Ngô Văn Thao · Accepted Answer · 2015-08-28T02:38:09.457

2

Try this:

function ucfirstSentence($str){
     $str = ucfirst(strtolower($str));
     $str = preg_replace_callback('/([.!?])\s*(\w)/', 
       create_function('$matches', 'return strtoupper($matches[0]);'), $str);
     return $str;
}

edited Aug 28 '15 at 02:38

answered Aug 28 '15 at 02:31

Ngô Văn Thao

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Making the first letter of every sentence upper case using ucfirst

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