note 7204 deleted from function.is-integer by jimw
| From: | jimw@php.net | Date: | Thu, 20 Dec 2001 23:39:42 +0000 |
| Subject: | note 7204 deleted from function.is-integer by jimw | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-23589@lists.php.net to get a copy of this message | ||
[Editor's Note:
is_integer() returns the boolean value false if the variable is not of type integer. (PHP 4+)
--zak@php.net]
is_integer only check the datatype of the var, but not the actual value. Also, if the input value is
not integer, the function will return empty (true in empty($rc) ) rather than 0. <br>
E.g. <br>
var1 = 1111; //is_integer(var1) -> 1 <br>
var2 = '1111'; //is_integer(var2) -> empty <br>
var3 = 'abcde'; //is_integer(var3) -> empty <br>
P.S. the version of above result is PHP 3.0.8
Thx attention.