Smarty template to determine the method of NULL array _php instance

The example in this article describes a method for Smarty template to determine that an array is empty. Share to everyone for your reference. Specifically as follows:

Here are two main methods:

1. Use count to get the subscript number of an array

In the following example, if $array is empty, no data is output

{if $array | @count neq 0}
Array is empty
{/if}

2. Direct judgment

{if $array neq ""}
Array is empty
{/if}

I hope this article will help you with the PHP program design based on Smarty template.