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diff --git a/vendor/smarty/smarty/docs/designers/language-builtin-functions/language-function-if.md b/vendor/smarty/smarty/docs/designers/language-builtin-functions/language-function-if.md new file mode 100644 index 000000000..2c1d68eea --- /dev/null +++ b/vendor/smarty/smarty/docs/designers/language-builtin-functions/language-function-if.md @@ -0,0 +1,121 @@ +{if},{elseif},{else} {#language.function.if} +==================== + +`{if}` statements in Smarty have much the same flexibility as PHP +[if](&url.php-manual;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 securty is enabled, only PHP functions from `$php_functions` property +of the securty policy are allowed. See the +[Security](#advanced.features.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. + + 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 + + + {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} + |