New here--------smarty

Smarty

Day01-----Usage of smarty
Function: Separate php+html, program and art
Usage:
1. Download the source code package
2. Directory structure
libs
source code file
Smarty .class.php
template //Template file html file
template_c //Template compilation file automatically generated during program running
3. Instantiation
require "Smarty.class.php";
$smartyOb=new Smarty( );
4. Configuration
Tell Smarty which directory is where template html is placed
$smartyOb->setTemplateDir(path);
Tell smarty which directory is where compiled files are placed
$smartyOb->setCompileDir(path)
5. Display template
$smartyOb->display("template name and path");
How to pass value to template
$smartyOb->assign('name on template', passed variable);
How to call on template
Template tag
{$name}
Array
{$array name.subscript}
Two-dimensional array
array(
0=>array('title'=>'t1','pubtime'=>1234567890 ,'author'=>'xiaoli'),
1=>array('title'=>'t2','pubtime'=>1334567890,'author'=>'xiaoli'),
array ('title'=>'t3','pubtime'=>1434567890,'author'=>'xiaoli'),
array('title'=>'t4','pubtime'=>1534567890 ,'author'=>'xiaoli'),
)
Traverse the array
{foreach array name as variable name}
{$variable name.title}
{/foreach}
subscript value
<{$variable name @key}> <{$variable name@index}>
Number of loops
<{$variable name@total}>
How many times is the current loop
<{$variable name@iteration}>
Is it the first loop
<{$variable name@first}>
Is it the last loop
<{$variable name@last}>
Case:
Implement an interlaced background color change
< {if condition}>
Code
<{/if}>
Exercise:
Underline (dashed line) each li, except the last line

Understand the content:
<{section name=s1 loop= Traversed array}>
<{$Traversed array[s1].subscript}>
<{/section}>
Attributes:
<{$smarty.section.s1.total} >
<{$smarty.section.s1.index}>
<{$smarty.section.s1.iteration}>
<{$smarty.section.s1.last}>
< {$smarty.section.s1.first}>
Exercise:
Use section to achieve different background colors for alternate lines

Variable regulator
Specification of template label delimiter:
<{}>
$smartyOb- >left_delimiter="<{";
$smartyOb->right_delimiter="}>";

day02---------, review the content of day01 and expand new knowledge

Smarty
1. Smarty, placed in the php main program
2. Configuration
$smartyOb->setTemplateDir()
$smartyOb->setCompileDir()
$smartyOb->left_delimiter()
$smartyOb->right_delimiter( )
3. Pass value to the template
$smartyOb->assign("template variable name", variable);
4. Display the template
$smartyOb->display(path);
{$name}
{$array .subscript}
{foreach array name as variable}
{$variable name}
{/foreach}
Label attribute:
{$variable name@key}
{$variable name@index}
{$variable name@iteration }
{$variable name@total}
{$variable name@first}
{$variable name@last}
{if condition}
{else}
{/if}
Variable regulator:
{first parameter |Function name: second parameter:......}
Article detail page:
02_detail.php?id=5
1. Configure smarty
2. Receive article id
3. Instantiate pdo
4. Spell sql statement
5. Execute
6. Get data
7. Pass value to template
8. Display template
9. Set template tags and use the data passed by the main program

Page splitting
{include file="template path"}
Register function
function fun1(){
return 'abc';
}
$smartyOb->registerPlugin("function","template function name","registered function name");
in Called on the template:
{template function name = value name = value....}
How to pass parameters? ? ?
1. The number of parameters is at most two.
The first one receives all the parameters passed on the template,
The second parameter receives the current smarty object.
Caching
Data in the database is cached.
Benefits: Reduces the pressure on the mysql server
1. Specify the storage directory for cache files
$smartyOb->setCacheDir(ROOT."day02/cache");
2. Turn on caching
$smartyOb->caching=true;
3. Specify the cache life cycle.
$smartyOb->cache_lifetime=100;//seconds
Function: Determine whether the cache file exists and is valid
$smartyOb->isCached("Template name and path",id)
$smartyOb->display("Template Name and path",id);

The above is an introduction to --------smarty, which is new to me, including some aspects. I hope it will be helpful to friends who are interested in PHP tutorials.