Smarty partially closes cache configuration_PHP tutorial

To invalidate cache in certain areas (only the cache that is needed), there are several ways:

1. inser:

Define a processing function to be used by the insert tag. The function name format is: insert_xx (array $params, object &$smarty) where xx is the name of insert. That is to say, if the function you define is insert_abc, then The method used in the template is {insert name=abc}

Parameters are passed in through $params

It can also be made into an insert plug-in. The file name is: insert.xx.php, the function is named: smarty_insert_aa($params,&$smarty), and the definition of xx is the same as above

2. register_block:

Define a block:smarty_block_name($params,$content, &$smarty){return $content;} //name represents the area name

Register block:$smarty->register_block(name, smarty_block_name, false); //The third parameter false means that the area is not cached

Template writing: {name} content {/name}

Written as block plug-in:

(1) Define a plug-in function: block.cacheless.php and place it in smarty’s plugins directory

The content of block.cacheless.php is as follows:

function smarty_block_cacheless($param, $content, &$smarty) {

return $content;

}

?>

(2) Write programs and templates

Sample program: testCacheLess.php

include(Smarty.class.php);

$smarty = new Smarty;

$smarty->caching=true;

$smarty->cache_lifetime = 6;

$smarty->display(cache.tpl);

?>

Template used: cache.tpl

Cached: {$smarty.now}

{cacheless}

No cache: {$smarty.now}

{/cacheless}

Run it now and find that it doesn’t work. Both lines of content are cached

(3) Rewrite Smarty_Compiler.class.php (Note: This file is very important, please back it up first to restore it if necessary)

Find$this->_plugins[block][$tag_command] = array($plugin_func, null, null, null, true); //Mine is at line 705

was changed to:

if($tag_command == cacheless) $this->_plugins[block][$tag_command] = array($plugin_func, null, null, null, false);

else $this->_plugins[block][$tag_command] = array($plugin_func, null, null, null, true);

You can also directly change the last parameter of the original sentence to false. I don’t know much about the internal mechanism of smarty, so I added a judgment. As long as the block is cacheless, it will not be cached

(4) OK, now clear the compiled files in template_c and run it again. Does it work?

Source: Programming Home

http://www.bkjia.com/PHPjc/486228.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/486228.htmlTechArticleTo invalidate the cache in some areas (only the required cache), there are several methods: 1. insert : Define a processing function to be used by the insert tag. The function name format is: insert_xx(array $params, o...