Function __global->empty
Definitions
sources_custom/phpstub.php
- Determine whether a variable is empty (empty being defined differently for different types).Note that the string '0' is considered empty. If you don't want that, use cms_empty_safe (maybe with @), or a combination of isset and is_numeric.Generally this function is used if you don't want to check for array index presence, non-nullness, non-blank-stringness, and non-zeroness via individual ANDd clauses.
- Visibility: public
- Is abstract?: No
- Is static?: No
- Is final?: No
- Returns: bool
Parameters
| Name | Type | Passed by reference? | Variadic? | Default | Set | Range | Description |
|---|---|---|---|---|---|---|---|
| $var | mixed | No | No | required parameter | N/A | N/A | Input |
Returns
- Whether it is CONSIDERED empty
- Type: boolean
- Set: N/A
- Range: N/A
Preview
Code (PHP)
/**
* Determine whether a variable is empty (empty being defined differently for different types).Note that the string '0' is considered empty. If you don't want that, use cms_empty_safe (maybe with @), or a combination of isset and is_numeric.Generally this function is used if you don't want to check for array index presence, non-nullness, non-blank-stringness, and non-zeroness via individual ANDd clauses.
*
* @param mixed $var Input
* @return boolean Whether it is CONSIDERED empty
*/
function empty($var) : bool
* Determine whether a variable is empty (empty being defined differently for different types).Note that the string '0' is considered empty. If you don't want that, use cms_empty_safe (maybe with @), or a combination of isset and is_numeric.Generally this function is used if you don't want to check for array index presence, non-nullness, non-blank-stringness, and non-zeroness via individual ANDd clauses.
*
* @param mixed $var Input
* @return boolean Whether it is CONSIDERED empty
*/
function empty($var) : bool
