[shan]

Array is $test

{section name=test_num loop=$test} 

{if $test[test_num].param eq $my_parm} 

$test[test_num].param 

{/if} 

{/section} 

That code will only print the row in the loop that matches your $my_param.

not sure if thats what your looking for.

the loop would be made up from a php file / mysql statement and the {if} statement will pick out the row you want.

If you wanted to minimise the amount of rows in the array you would need to alter the sql statement