Returns true if value is null, false otherwise. Examples ¶. Example #1 ...
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The is_null() function checks whether a variable is NULL or not. This function returns true (1) if the variable is NULL, otherwise it returns ...
2022/08/19 · The is_null () function is used to test whether a variable is NULL or not. Version: (PHP 4 and above). Syntax:
2021/10/05 · The is_null() function is an inbuilt function in PHP which is used to find whether a variable is NULL or not. Syntax: boolean ...
2021/06/11 · The is_null() function returns true if the value of a variable has been explicitly set to NULL . Otherwise, it simply returns false . On the ...
PHP defines NULL as one of its special data types. It indicates that a certain variable has not been assigned a value any specific data type.
2021/11/17 · It returns TRUE if value of variable $var is NULL, otherwise, returns FALSE. Syntax. boolean is_null( $var ). Example: PHP. PHP ...
Use is_null() or '===' if there is possible of getting empty array. ... NULL is supposed to indicate the absence of a value, rather than being thought of as a ...
Finds whether the given variable is null. Parameters. value. The variable being evaluated.
2023/11/07 · When checking strings or integers for null values, it is better to avoid loose operations and use strict === null or is_null checks are ...