PHP Basic: NULL Data TypeTag: data type, null Category: PHP Basicpost: 01 Mar 2008 read: 92 PHP Basic Data Type Step By Step Tutorial - Part 8:NULL expresses that a variable which do not have value. NULL only representing value possible from type of null which have been introduced in PHP 4, and NULL keyword is a sensitive case. a variable of NULL, if - a variable given by value of NULL constanta - a variable have never been filled by value - a variable have been imposed by function of un_set(). The written: $ var = null; |
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