PHP - 这是进行这些更改的有效方法吗？

Question

I care a lot about capitalization (probably too much). So I wrote a function that fixes the capitalization everywhere on my site. I basically want "title case" but with some exceptions... words I don't like to see capitalized and acronyms.

function my_capitals($string)
{
    $uc = ucwords($string);
    $tokens = explode(' ',$uc);
    foreach ($tokens as $key=>$val)
    {
        if ($val == 'Ipa') $tokens[$key] = 'IPA';
        else if ($val == 'Ipas') $tokens[$key] = 'IPAs';
        else if ($val == 'Apa') $tokens[$key] = 'APA';
        else if ($val == 'Apas') $tokens[$key] = 'APAs';
        else if ($val == 'A') $tokens[$key] = 'a';
        else if ($val == 'And') $tokens[$key] = 'and';
        else if ($val == 'The') $tokens[$key] = 'the';
        else if ($val == 'In') $tokens[$key] = 'in';
        else if ($val == 'Or') $tokens[$key] = 'or';
        else if ($val == 'Of') $tokens[$key] = 'of';
        else if ($val == 'To') $tokens[$key] = 'to';
        else if ($val == 'On') $tokens[$key] = 'on';
        else if ($val == 'At') $tokens[$key] = 'at';
        else $tokens[$key] = $val;
    }
    $final = implode(' ',$tokens);
    return $final;
}

Imagine there might be another 10-15 options and that it may be run 3-5 times per page on relatively short strings (one-line descriptions and titles).

My question is this: Is this an efficient way to accomplish this sort of translation? Or should I be figuring out a more efficient way to do it? Is there another alternative I don't know of, as opposed to just switch which probably has similar performance?

Answer 1

I would do it this way:

   function my_capitals($string)
    {
        $uc = ucwords($string);
        $tokens = explode(' ',$uc);
        $excepsions = ['Ipa'=>'IPA','Ipas'=>'IPAs'];
        foreach ($tokens as $key=>$val)
        {
            if(isset($excepsions[$val])){
                $tokens[$key] = $excepsions[$val];
            }
        }
        $final = implode(' ',$tokens);
        return $final;
    }