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{while} {#language.function.while}
=======
`{while}` loops in Smarty have much the same flexibility as PHP
[while](&url.php-manual;while) statements, with a few added features for
the template engine. Every `{while}` must be paired with a matching
`{/while}`. All PHP conditionals and functions are recognized, such as
*\|\|*, *or*, *&&*, *and*, *is\_array()*, etc.
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.
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 modulous \%
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
{while $foo > 0}
{$foo--}
{/while}
The above example will count down the value of \$foo until 1 is reached.
See also [`{foreach}`](#language.function.foreach),
[`{for}`](#language.function.for) and
[`{section}`](#language.function.section).
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