smarty模板中判斷一個字符包含在一個字符串裏

$key要查找的字符，

$strArr數組，

{if in_array($key,$strArr)}
輸出
{/if}

模板裏判斷的，兩個變量：
{$key}
{$str}
其中
$key=”1″;
$str=”,1,3,5,”;
$strArr = explode(“,”, $str);

在模板中使用格式：
{if in_array($key, $strArr)}Ok{else}Not in!{/if}

 

應用舉例：

 <input name="purchase_category[]" type="checkbox" value="tea" {if in_array("tea", explode(",",$distributor.purchase_category))}checked="checked"{/if} />茶葉
                      <input name="purchase_category[]" type="checkbox" value="tea_tool"  {if in_array("tea_tool", explode(",",$distributor.purchase_category))}checked="checked"{/if} />茶具
                      <input name="purchase_category[]" type="checkbox" value="tea_food" {if in_array("tea_food", explode(",",$distributor.purchase_category))}checked="checked"{/if} />茶食品
                      <input name="purchase_category[]" type="checkbox" value="tea_use" {if in_array("tea_use", explode(",",$distributor.purchase_category))}checked="checked"{/if} />茶日用品
                      <input name="purchase_category[]" type="checkbox" value="tea_pack"  {if in_array("tea_pack", explode(",",$distributor.purchase_category))}checked="checked"{/if}/>茶包裝
                      <input name="purchase_category[]" type="checkbox" value="other" {if in_array("other", explode(",",$distributor.purchase_category))}checked="checked"{/if} />其他