How to add a foreach-like function to automatically load data in smarty_PHP tutorial

Use a custom plug-in to load data in smarty (see: Detailed introduction to writing Smarty plug-ins to load data directly in templates). It still feels inconvenient when using it. I had an idea and wanted to write a tag like foreach:

Step one: Add in the _compile_tag function of Smarty_Compiler.class.php:

Copy the code The code is as follows:

//Start tag of loading data
case 'load':
$this->_push_tag('load');
return $this->_complie_load_start($ tag_args);
break;
//End tag of loading data
case '/load':
$this->_pop_tag('load');
return "";
break;

Step 2: Add a method:

Copy code The code is as follows:

/**
* Load data
* @param $tag_args
*/
function _complie_load_start($tag_args)
{
$key = substr(md5($tag_args), 8, 16); //Generate a special variable name based on the parameters
$attrs = $this->_parse_attrs($tag_args);
//Here More processing can be added
$class = (!isset($attrs['class']) || empty($attrs['class'])) ? 'cls_crud' : trim($attrs['class' ]);
(!isset($attrs['table']) || empty($attrs['table'])) && exit('`table` is empty!');
$db = $class::factory(array('table' => substr($attrs['table'], 1, -1)));
//Define new variables
$this->_tpl_vars[ $key] = $db->get_block_list(array(substr($attrs['where'], 1, -1)), $attrs['limit']);
$tag_args = "from=/$ {$key} " . $tag_args;

//Call the foreach tag processing function for processing
return $this->_compile_foreach_start($tag_args);
}

In this way, you can use the load tag in the template. Usage example:

Copy code The code is as follows:

{load table="test" where="`id`< 100" limit=10 item=rec}
...
{/load}

http://www.bkjia.com/PHPjc/327901.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/327901.htmlTechArticleUse custom plug-ins in smarty to load data (see: details on writing Smarty plug-ins to load data directly in templates Introduction), I still felt that it was not convenient enough when using it, so I had an idea...