Smarty - the compiling PHP template engine
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default
默认

Parameter PositionTypeRequiredDefaultDescription
1stringNoempty This is the default value to output if the variable is empty.
这是变量为空的时候的默认输出

This is used to set a default value for a variable.
If the variable is empty or unset, the given default value is printed instead. Default takes one argument.

为空变量设置一个默认值.
当变量为空或者未分配的时候,将由给定的默认值替代输出.

Example 5-10. default
例 5-10.默认

index.php:



$smarty = new Smarty;

$smarty->assign('articleTitle', 'Dealers Will Hear Car Talk at Noon.');

$smarty->display('index.tpl');



index.tpl:



{$articleTitle|default:"no title"}

{$myTitle|default:"no title"}



OUTPUT:



Dealers Will Hear Car Talk at Noon.

no title
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