CODEWITHSUNDEEP
php
user3477550
user3477550

Reputation: 74

ucword() function with roman numerals

I am using ucword function to uppar case only first word as this ucwords(strtolower($var)) but sometimes I want the word to be uppar case. Please see the below example to understand clearly. 

$var = "class iii";
echo ucwords(strtolower($var));
gives as **Class Iii or Class Ii or Class Iv**

What I want it should display as Class III or Class II or Class IV to look beautiful

Upvotes: 1

Views: 755

Answers (6)

sshet
sshet

Reputation: 1160

ucwords will convert only first character of string in uppercase.

You have to find for all iii or iv first convert it to uppercase and then apply ucowrds to whole string.

Upvotes: 0

majidarif
majidarif

Reputation: 20075

Try using this instead:

<?php

    function xucwords($string)
    {
        $words = split(" ", $string);
        $newString = array();

        foreach ($words as $word)
        {
            if(!preg_match("/^m{0,4}(cm|cd|d?c{0,3})(xc|xl|l?x{0,3})(ix|iv|v?i{0,3})$/", $word)) {
                $word = ucfirst($word);
            } else {
                $word = strtoupper($word);
            }
            
            array_push($newString, $word);
        }
        
        return join(" ", $newString);  
    }
    
    echo xucwords('class iii');
    
?>

based on the function found here.

Upvotes: 1

Deepu Sasidharan
Deepu Sasidharan

Reputation: 5309

Try this

<?php
$var = "class iii";
$var =  ucfirst(strtolower($var));
echo str_replace(substr($var, 6), strtoupper(substr($var, 6)), $var);
?>

Output:

Class III

Upvotes: -1

Amal
Amal

Reputation: 76636

You can achieve this using preg_replace_callback() with a regex that uses positive lookahead:

/\b(?=[LXIVCDM]+\b)([a-z]+)\b/i

Explanation:

  • \b - assert position at a word boundary
  • (?= - positive lookahead
    • [LXIVCDM]+ - match any character from the list one or more times
    • \b - assert position at a word boundary
  • ) - end of positive lookahead
  • [a-z] - any alphabet
  • \b - assert position at a word boundary
  • i - pattern modifier that makes the matching case-insensitive

Code:

$str = "class iii";

$string = preg_replace_callback('/\b(?=[LXIVCDM]+\b)([a-z]+)\b/i', 
function($matches) {
    return strtoupper($matches[0]);
}, ucwords(strtolower($str)));

echo $string;

Output:

Class III

Demo

Upvotes: 4

opensource-developer
opensource-developer

Reputation: 3068

You the below code and see my inline comments

$var = "class iii";

echo upperCaseCustomFunction($var);

upperCaseCustomFunction($string) {

    $arr = explode(" ",$string);

    $stringPartOne = ucwords(strtolower($arr[0])); // will return Class 

    $stringPartTwo = strtoupper(strtolower($arr[1]));   // Will return III 

    return $tringPartOne." ".$stringPartTwo; // will return Class III

}

Upvotes: 0

Pankaj Garg
Pankaj Garg

Reputation: 1322

Simple use like below :

$var = strtolower("class ") . strtoupper("iii");
echo ucwords($var);

//Gives Class III

Upvotes: -1

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