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<?php
namespace CelsoNery\Initials\Services\Traits;
use function PHPUnit\Framework\isEmpty;
trait Initials
{
public function getInitials(string $firstName, string $lastName = ''): string
if (empty($firstName)) {
return "The name is necessary";
}
$firstName = trim($firstName);
$lastName = trim($lastName);
$lastName
if (mb_strpos($firstName, ' ')) {
$nameArr = explode(' ', $firstName);
return $this->getInitialsFullName($nameArr[0], $nameArr[1]);
return $this->getInitialsFirstName($firstName);
private function getInitialsFirstName(string $firstName): string
$initial = mb_substr($firstName, 0, 1);
return mb_strtoupper($initial);
private function getInitialsFullName(string $firstName, string $lastName): string
$initials = mb_substr($firstName, 0, 1) . mb_substr($lastName, 0, 1);
return mb_strtoupper($initials);
celsonery /
initials
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