{if},{elseif},{else}

{if} statements in Smarty have much the same flexibility as PHP if statements, with a few added features for the template engine. Every {if} must be paired with a matching {/if}. {else} and {elseif} are also permitted. All PHP conditionals and functions are recognized, such as \|\|, or, &&, and, is_array(), etc.

If security is enabled, only PHP functions from $php_functions property of the security policy are allowed. See the Security section for details.

The following is a list of recognized qualifiers, which must be separated from surrounding elements by spaces. Note that items listed in \[brackets\] are optional. PHP equivalents are shown where applicable.

Qualifiers

| Qualifier | Alternates | Syntax Example | Meaning | PHP Equivalent | |--------------------|------------|----------------------|--------------------------------|--------------------| | == | eq | $a eq $b | equals | == | | != | ne, neq | $a neq $b | not equals | != | | > | gt | $a gt $b | greater than | > | | < | lt | $a lt $b | less than | < | | >= | gte, ge | $a ge $b | greater than or equal | >= | | <= | lte, le | $a le $b | less than or equal | <= | | === | | $a === 0 | check for identity | === | | ! | not | not $a | negation (unary) | ! | | % | mod | $a mod $b | modulo | % | | is \[not\] div by | | $a is not div by 4 | divisible by | $a % $b == 0 | | is \[not\] even | | $a is not even | \[not\] an even number (unary) | $a % 2 == 0 | | is \[not\] even by | | $a is not even by $b | grouping level \[not\] even | ($a / $b) % 2 == 0 | | is \[not\] odd | | $a is not odd | \[not\] an odd number (unary) | $a % 2 != 0 | | is \[not\] odd by | | $a is not odd by $b | \[not\] an odd grouping | ($a / $b) % 2 != 0 |

Examples

{if $name eq 'Fred'}
    Welcome Sir.
{elseif $name eq 'Wilma'}
    Welcome Ma'am.
{else}
    Welcome, whatever you are.
{/if}

{an example with "or" logic}
{if $name eq 'Fred' or $name eq 'Wilma'}
   ...
{/if}

{same as above}
{if $name == 'Fred' || $name == 'Wilma'}
   ...
{/if}


{parenthesis are allowed}
{if ( $amount < 0 or $amount > 1000 ) and $volume >= #minVolAmt#}
   ...
{/if}


{you can also embed php function calls}
{if count($var) gt 0}
   ...
{/if}

{check for array.}
{if is_array($foo) }
   .....
{/if}

{check for not null.}
{if isset($foo) }
   .....
{/if}


{test if values are even or odd}
{if $var is even}
   ...
{/if}
{if $var is odd}
   ...
{/if}
{if $var is not odd}
   ...
{/if}


{test if var is divisible by 4}
{if $var is div by 4}
   ...
{/if}


{*
  test if var is even, grouped by two. i.e.,
  0=even, 1=even, 2=odd, 3=odd, 4=even, 5=even, etc.
*}
{if $var is even by 2}
   ...
{/if}

{0=even, 1=even, 2=even, 3=odd, 4=odd, 5=odd, etc.}
{if $var is even by 3}
   ...
{/if}
 
{if isset($name) && $name == 'Blog'}
     {do something}
{elseif $name == $foo}
    {do something}
{/if}

{if is_array($foo) && count($foo) > 0}
    {do a foreach loop}
{/if}