Updated Thursday, June 12, 2008
This page is a demo of the is_null() function. It works for all inputs, in all browsers. Tested in FireFox 2.0 and Internet Explorer 7. Compatible in IE5 and IE6.
| Value | is_null() |
|---|---|
| null | |
| ['this', 'is', 'an', 'array'] | |
| "blah blah" | |
| 5 | |
| false |