Using Smarty in PHP Part One: Using Variables_PHP Tutorial

All access in Smarty is based on variables. The following is an example to illustrate.

Example idea: The main file introduces the template initialization configuration file (init.inc.php) and a class, and assigns values ​​to the variables in the template.

​​​​​ First, set the init.inc.php file as the initialization configuration file of the Smarty template

init.inc.php

define('ROOT_PATH', dirname(__FILE__)); //Define the website root directory

require ROOT_PATH.'/libs/Smarty.class.php'; //Load Smarty file

$_tpl = new Smarty(); //Instantiate an object

$_tpl->template_dir = ROOT_PATH.'/tpl/'; //Reset the template directory to the tpl directory under the root directory

$_tpl->compile_dir = ROOT_PATH.'./com/'; //Reset the compilation directory to the com directory under the root directory

$_tpl->left_delimiter = '<{'; //Reset the left delimiter to '<{'

$_tpl->right_delimiter = '}>'; //Reset the left delimiter to '}>'

?>

Main file index.php

require 'init.inc.php'; //Introduce template initialization file

​ require 'Persion.class.php'; //Load object file

global $_tpl;

$title = 'This is a title!';

$content = 'This is body content!';

/*

* 1. Assign to template variables from PHP;

* Dynamic data (PHP from database or file, and variables generated by algorithms)

* Any type of data can be allocated from PHP, mainly including the following

* Scalar: string, int, double, boolean

* Composite: array, object

* NULL

* The index array is accessed directly through the index

* For associative arrays, instead of using [associated subscript], use . subscript

* The object is accessed directly through ->

* */

$_tpl->assign('title',$title);

$_tpl->assign('content',$content); //Assignment of variables

$_tpl->assign('arr1',array('abc','def','ghi')); //Assignment of index array

$_tpl->assign('arr2',array(array('abc','def','ghi'),array('jkl','mno','pqr'))); //Index two-dimensional Array assignment

$_tpl->assign('arr3',array('one'=>'111','two'=>'222','three'=>'333')); //Associative array Assignment

$_tpl->assign('arr4',array('one'=>array('one'=>'111','two'=>'222'),'two'=>array( 'three'=>'333','four'=>'444'))); //Assignment of associated two-dimensional array

$_tpl->assign('arr5',array('one'=>array('111','222'),array('three'=>'333','444'))); / /Assignment of mixed arrays of associative and indexed arrays

$_tpl->assign('object',new Persion('Xiaoyi', 10)); //Object assignment

//Numbers in Smarty can also be operated (+-*/^...)

$_tpl->assign('num1',10);

$_tpl->assign('num2',20);

$_tpl->display('index.tpl');

?>

The template file index.tpl of the main file index.php (stored in the /tpl/ directory)

http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

http://www.w3.org/1999/xhtml">

         

                                                                                                   

Variable access: <{$content}>

                                                                                   

Index array access: <{$arr1[0]}> <{$arr1[1]}> <{$arr1[2]}>

                                                                                     

Access to indexed two-dimensional array: <{$arr2[0][0]}> <{$arr2[0][1]}> <{$arr2[0][2]}> < ;{$arr2[1][0]}> <{$arr2[1][1]}> <{$arr2[1][2]}>

                                                                                     

Access to associative array: <{$arr3.one}> <{$arr3.two}> <{$arr3.three}>

                                                                                     

Access to associative two-dimensional arrays: <{$arr4.one.one}> <{$arr4.one.two}> <{$arr4.two.three}> <{$arr4.two .four}>

                                                                                     

Access to mixed associative and indexed arrays: <{$arr5.one[0]}> <{$arr5.one[1]}> <{$arr5[0].three}> <{ $arr5[0][0]}>

                                                                                   

Access to member variables in the object: <{$object->name}> <{$object->age}>

                                                                                         

Access to methods in objects: <{$object->hello()}>

                                                                                   

Variable operations: <{$num1+$num2}>

                                                                                   

Mixed operations of variables: <{$num1+$num2*$num2/$num1+44}>

                                                                                   

Persion.class.php

class Persion {

       public $name; //For ease of access, set to public

Public $age;

 

//Define a construction method

Public function __construct($name,$age) {

$this->name = $name;

             $this->age = $age;                                  

}  

 

//Define a hello() method to output name and age

Public function hello() {

          return 'Hello! My name is '.$this->name.', and I am '.$this->age.' this year. ';

}  

 

}

?>

Execution result:

Variable access: This is body content!

Index array access: abc def ghi

Access to indexed two-dimensional array: abc def ghi jkl mno pqr

Access to associative array: 111 222 333

Access to associative two-dimensional array: 111 222 333 444

Access to mixed associative and indexed arrays: 111 222 333 444

Access to member variables in objects: Xiaoyi 10

Access to methods in objects: Hello! My name is Xiao Yi, I am 10 years old this year.

Variable operations: 30

Mixed operations on variables: 94

Excerpted from: lee's column

http://www.bkjia.com/PHPjc/478576.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/478576.htmlTechArticleAll access in Smarty is based on variables. The following is an example to illustrate. Example idea: The main file initializes the configuration file (init.inc.php) and a class by introducing a template,...