Functions:isset

From Dwoo Docs

Checks whether a variable is not null

isset(mixed $var)

• var : variable to check

---

Example:

{if isset($foo)}SET{else}not set or null{/if}
{$foo=1}
{if isset($foo)}SET{else}not set or null{/if}
{$bar=null}
{if isset($bar)}SET{else}not set or null{/if}

Output:

not set or null
SET
not set or null

Note that doing :

{if $foo}{$foo}{/if}

..is the same as if you used :

{if isset($foo)}{$foo}{/if}