Camelize a php string

Question

How to convert this type of php string to camel case?

$string = primary-getallgroups-sys

I've tried but just found different solutions to camelize a string with spaces. Like ucword($string), but it just capitalize the first word. When i add a delimeter of hyphen (-), it gives error.

Answer 1

You can make a function to convert these types of string to camel cases.

Try this:

<?php
// CONVERT STRING TO CAMEL CASE SEPARATED BY A DELIMITER
function convertToCamel($str, $delim){
    $exploded_str = explode($delim, $str);
    $exploded_str_camel = array_map('ucwords', $exploded_str);
    return implode($delim, $exploded_str_camel);
}

$string = 'primary-getallgroups-sys';

echo convertToCamel($string, '-'); // Answer

?>

Answer 2

In fact camel case is more like this: iAmCamelCased.

And this is mixed case: IAmMixedCased.

@sundas-mushtaq Also note that hyphens will break your code if used in symbol names (like in functions or variables).

To camelize, use this:

function camelize($word, $delimiter){
    $elements = explode($delimiter, $word);

    for ($i = 0; $i < count($elements); $i++) {
        if (0 == $i) {
            $elements[$i] = strtolower($elements[$i]);
        } else {
            $elements[$i] = strtolower($elements[$i]);
            $elements[$i] = ucwords($elements[$i]);
        }
    }

    return implode('', $elements);
}

And to mixify, use this :

function mixify($word, $delimiter){
    $word = strtolower($word);
    $word = ucwords($word, $delimiter);

    return str_replace($delimiter, '', $word);
}

Answer 3

From Symfony

function camelize(string $string): string
{
    return lcfirst(str_replace(' ', '', ucwords(preg_replace('/[^a-zA-Z0-9\x7f-\xff]++/', ' ', $string))));
}

Answer 4

// if you want to camelize first word also, remove lcfirst call

function camelize($string) {
    $tokens = array_map("ucFirst", explode("_", $string)) ;
    return lcfirst(implode("",$tokens));
}