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This article will explain in detail the example analysis of Zend Framework's Zend_Layout layout assistant. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

The details are as follows:

I. function

The role of layout is similar to that of templates. It can be thought of as taking out the general and public parts of the website as a general page framework. For example, a basic web page, the head and tail of the page may be the same, the only difference may be the content body part is different, the common part can be made into a template. It can not only improve the development efficiency, but also bring convenience for the later maintenance.

2. Use

Here is a simple example.

First create a basic zend framework project with zend studio: layout_demo1

The structure is roughly as follows. "

├─ .settings

├─ application

│ ├─ configs

│ ├─ controllers

│ ├─ models

│ └─ views

│ ├─ helpers

│ └─ scripts

│ ├─ error

│ └─ index

├─ docs

├─ library

├─ public

└─ tests

├─ application

│ └─ controllers

└─ library

1. Join the layout function:

Apply the configuration file / layout_demo2/application/configs/application.ini and add the following configuration

Resources.frontController.controllerDirectory = APPLICATION_PATH "/ controllers" resources.frontController.params.displayExceptions = 0resources.layout.layoutPath = APPLICATION_PATH "/ layouts/scripts/" [staging: production]

two。 Corresponding directory and layout template files / layout_demo2/application/layouts/scripts/layout.phtml

├─ application

│ ├─ configs

│ ├─ controllers

│ ├─ layouts

│ │ └─ scripts

│ ├─ models

│ └─ views

The layout.html looks like this:

My app header header

Here

It's more important. Indicates that this is the content of the layout, that is, where it will change dynamically.

So, run the program.

Www.localzend.com/layout_demo1/public/

The generated html source code is as follows

My app header a:link, a:visited {color: # 0398CA;} span#zf-name {color: # 91BE3F;} div#welcome {color: # FFFFFF; background-image: url (https://cache.yisu.com/upload/information/20201209/266/40829.jpg); width: 600px; height: 400px; border: 2px solid # 444444; overflow: hidden; text-align: center } div#more-information {background-image: url (https://cache.yisu.com/upload/information/20201209/266/40830.gif); height: 100%;} Welcome to the Zend Framework! This is your project's main page

Helpful Links: Zend Framework Website | Zend Framework Manual

Header

The middle part is the content of / layout_demo1/application/views/scripts/index/index.phtml.

Injection: the configuration and files of layout can be generated automatically through zf's command tool.

The command is as follows:

Zf enable layout

You can refer to the command line section

III. Configuration

1. Custom location and name can be used to configure the location and name of the layout file through the application.ini configuration file, for example:

Resources.layout.layoutPath = APPLICATION_PATH "/ mylayouts/scripts" resources.layout.layout = "mylayout"

two。 Using layout objects in action

Can be passed through

$layout = $this- > _ helper- > layout ()

Or

$helper = $this- > _ helper- > getHelper ('Layout'); $layout = $helper- > getLayoutInstance ()

Gets the layout object.

You can disable the current action usage layout mode in the following ways

$layout- > disableLayout ()

Can be passed through

$layout- > setLayout ('other')

To set up to use another layout file

You can pass the assignment through

$layout- > assign ('headertitle',' app title'); $layout- > somekey = "value"

3. Other methods of getting layout objects

(1)

$layout = Zend_Layout::getMvcInstance ()

(2)

$layout = $bootstrap- > getResource ('Layout')

Fourth, other uses, realization principle

For other specific usage methods, please refer to

Zend_Layout_Controller_Action_Helper_Layout class

Zend_Layout_Controller_Plugin_Layout class

Zend_View_Helper_Layout class

It speaks for itself.

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