| @@ -64,7 +64,7 @@ discard block | ||
| 64 | 64 | * Get the first element of an array. Useful for method chaining. | 
| 65 | 65 | * | 
| 66 | 66 | * @param array $array | 
| 67 | - * @return mixed | |
| 67 | + * @return string | |
| 68 | 68 | */ | 
| 69 | 69 | function head($array) | 
| 70 | 70 |      { | 
| @@ -335,7 +335,7 @@ discard block | ||
| 335 | 335 | |
| 336 | 336 | /** | 
| 337 | 337 | * Check if array is not null and not empty. | 
| 338 | - * @param $array | |
| 338 | + * @param string[] $array | |
| 339 | 339 | * @return bool | 
| 340 | 340 | */ | 
| 341 | 341 | function isNotNullOrEmptyArray($array):bool | 
| @@ -610,7 +610,7 @@ | ||
| 610 | 610 | * If cal_days_in_month() is not defined return the number of days | 
| 611 | 611 | * in a current month in CAL_GREGORIAN calendar. | 
| 612 | 612 | * If $calendar is null or empty or not is integer, use CAL_GREGORIAN. | 
| 613 | - * @param $calendar | |
| 613 | + * @param integer $calendar | |
| 614 | 614 | * @return int | 
| 615 | 615 | */ | 
| 616 | 616 | function cal_days_in_current_month($calendar = CAL_GREGORIAN) : int |