CodeIgniter3扩展语言助手

Question

I'm using CodeIgniter 3 and I want to expand default Language Helper.

CodeIgniter by default allows with function lang(language_key) get a value from language file, but my language file is different.

Default language file:

$lang = [
    'MONTH_JANUARY' => 'January',
    'MONTH_FEBRUARY' => 'February',
];

My file:

$lang = [
    'MONTH' => [
        'JANUARY' => 'January',
        'FEBRUARY' => 'February',
    ],
];

I want to create a helper function with explode.

For example, using lang('MONTH.JANUARY') it will look for $lang['MONTH']['JANUARY'] and return 'January'.

What would be the best way to do it?

Answer 1

Use reference to walk through array

function lang($string) {
  $lang = [
    'MONTH' => [
        'JANUARY' => 'January',
        'FEBRUARY' => 'February',
    ],
  ];

  $p = &$lang;
  foreach(explode('.', $string) as $x) {
     if(! isset($p[$x])) {
       // key does not exist - do something
     }
     else {
       $p = &$p[$x];
     }   
  }
  return $p;
}


echo lang('MONTH.JANUARY'); // 'January'

demo