Six smarty tips

Several ignored but useful labels in the php smarty template engine, including the capture tag, config_load tag, php tag, strip tag, and fetch tag, and how to directly use the constants defined by define in the smarty template. The following describes the specific examples:

Capture tag

Capture means capturing in Chinese. Its function is to capture the data output from the template. when we need it, call it to get the purpose of capturing data. Example:

{capture name="test"}{/capture}<div class="image">{$smarty.capture.test}</div>

Note: content between {capture name = "test"} and {/capture} is stored in the variable $ test, which is specified by the name attribute. in the template, use $ smarty. capture. test accesses this variable. if the name attribute is not specified, the function uses "default" as the parameter by default, which is similar to the clone method in jquery.

Config_load label

Config_load can directly read the content in the file, which saves the assign step, as shown in the following example:

Test.csv file:

pageTitle = "config_load_test"bodyBgColor = "#eeeeee"img = "girl.jpg"width="100"height="100"

The preceding test.csv file can be referenced in the index. tpl template as follows:

{config_load file="test.csv"}
Note: if such a problem occurs during the above process, Warning: Smarty error: unable to read resource. Please verify if your test.csv file is in the smarty configuration directory. The default configuration directory is the configs directory.
Php labels
When you get used to assign, have you ever thought about writing php Code directly in the template file? although this is not recommended, but sometimes I have to do this when I Have To Do This due to business needs? Let's take a look at the example below:
{php}global $result;foreach($result as $key=>$value){    echo "key=$key,value=>$value<br>";}{/php}
Strip tag
The strip tag removes spaces and carriage returns from the tag. I think this tag is useful and can be compressed to the final html format. If you want to see the effect, check the source code of this site to see if it is cool:
{Strip} <div> <font color = "red"> strip </font> <span> <div> php smarty strip compresses html output, view Source Code at www.phpernote.com </div> </span> </div> {/strip}
Fetch label
The fetch tag is similar to the file_get_contents function in php. You can read the content in the file and assign the read result to a variable in the form of a string. The following is an example:
{fetch file="./aaaa.txt" assign="result"}{if is_array($result)}<b>is array</b>{else if}<b>not array</b>{/if}
Constants defined by define can be directly used in the smarty template in php.
The usage is as follows:
{$ Smarty. const. Constant name you defined}
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