PHP checking a variable with empty() or truthy

Asked Feb 19 '19 at 12:03

Active Feb 19 '19 at 12:18

Viewed 176 times

Can anyone tell me the different between checking if a variable has value using the empty() function or "truthy" in an if statement? As far as I can tell they achieve the same thing?.. I am writing a function for Wordress that loops through the taxonomies and both work but I am not sure which is best.

   $taxonomies = get_taxonomies($args, $output, $operator);

      if (!empty($taxonomies)) {

      ...code here

    }

$taxonomies = get_taxonomies($args, $output, $operator);

  if ($taxonomies) {

...code here

}

edited Feb 19 '19 at 12:18

asked Feb 19 '19 at 12:03

caffeinehigh

http://php.net/manual/en/types.comparisons.php – Marcin Orlowski Feb 19 '19 at 12:05
1

Second example will throw error if no variable named `$taxonomies` exists [should i use empty() php function](https://stackoverflow.com/questions/7260323/should-i-use-empty-php-function) – Justinas Feb 19 '19 at 12:05
1

it is not related to wordpress, this is a general php question, plenty of answers available sir. – BILAL MALIK Feb 19 '19 at 12:09

PHP checking a variable with empty() or truthy

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