zoukankan      html  css  js  c++  java
  • Input

    Input

    Please note that both Input and Request do NOT sanitize your data, it is up to you to do that.

    Basic Input

    You may access all user input with a few simple methods. You do not need to worry about the HTTP verb used for the request, as input is accessed in the same way for all verbs.

    Retrieving An Input Value

    $name = Input::get('name');

    Retrieving A Default Value If The Input Value Is Absent

    $name = Input::get('name', 'Sally');

    Determining If An Input Value Is Present

    if (Input::has('name'))
    {
        //
    }

    Getting All Input For The Request

    $input = Input::all();

    Getting Only Some Of The Request Input

    $input = Input::only('username', 'password');
    
    $input = Input::except('credit_card');

    When working on forms with "array" inputs, you may use dot notation to access the arrays:

    $input = Input::get('products.0.name');

    Note: Some JavaScript libraries such as Backbone may send input to the application as JSON. You may access this data via Input::get like normal.

    Old Input

    You may need to keep input from one request until the next request. For example, you may need to re-populate a form after checking it for validation errors.

    Flashing Input To The Session

    Input::flash();

    Flashing Only Some Input To The Session

    Input::flashOnly('username', 'email');
    
    Input::flashExcept('password');

    Since you often will want to flash input in association with a redirect to the previous page, you may easily chain input flashing onto a redirect.

    return Redirect::to('form')->withInput();
    
    return Redirect::to('form')->withInput(Input::except('password'));

    Note: You may flash other data across requests using the Session class.

    Retrieving Old Data

    Input::old('username');

    Files

    Retrieving An Uploaded File

    $file = Input::file('photo');

    Determining If A File Was Uploaded

    if (Input::hasFile('photo'))
    {
        //
    }

    The object returned by the file method is an instance of the SymfonyComponentHttpFoundationFileUploadedFile class, which extends the PHP SplFileInfo class and provides a variety of methods for interacting with the file.

    Determining If An Uploaded File Is Valid

    if (Input::file('photo')->isValid())
    {
        //
    }

    Moving An Uploaded File

    Input::file('photo')->move($destinationPath);
    
    Input::file('photo')->move($destinationPath, $fileName);

    Retrieving The Path To An Uploaded File

    $path = Input::file('photo')->getRealPath();

    Retrieving The Original Name Of An Uploaded File

    $name = Input::file('photo')->getClientOriginalName();

    Retrieving The Extension Of An Uploaded File

    $extension = Input::file('photo')->getClientOriginalExtension();

    Retrieving The Size Of An Uploaded File

    $size = Input::file('photo')->getSize();

    Retrieving The MIME Type Of An Uploaded File

    $mime = Input::file('photo')->getMimeType();
  • 相关阅读:
    JAVA类和对象
    JAVA数组
    JAVA流程控制语句
    JAVA运算符
    JAVA数据类型-整数、浮点、字符串、boolean、引用数据类型
    JAVA变量
    JAVA文档注释的三种方式
    @Transactional注解失效的场景总结
    接口幂等性
    事务的四个特性、四种隔离级别和七种传播行为
  • 原文地址:https://www.cnblogs.com/chunguang/p/5642994.html
Copyright © 2011-2022 走看看