I've come across a requirement in some of my Smarty templates to check if a value of a variable appears in an array. The PHP in_array function does this for you and according to the Smarty documentation any PHP function can be used as a variable modifier so this should be very easy to implement.


So lets say my variable is named $my_fruit and I want to check if the value is in this array: ['apples', 'oranges', 'peaches', 'dragonfruit']. This is what it would look like in Smarty...




The syntax can be a little confusing. The variable is specified first, followed by the pipe character, then the in_array function. A colon is used to specify an input parameter to the in_array function, which happens to be the array of fruit from above.

-i