Home php教程 php手册 jQuery+PHP获取Select option 选择的Text和Value(附选择城市实例)

jQuery+PHP获取Select option 选择的Text和Value(附选择城市实例)

Jun 13, 2016 am 10:55 AM
option php select text code and City Example of Obtain choose

PHP代码:

[php]  

 

  •  

        所在城市  

       

             

             

             

             

         

  •  

  •  

    所在地区  

     

       

             

             

                 

             

         

     

  •  

     

    Jquery代码:

    [javascript] 

    $("select.city").change(function(){  

        var ccode = $(this).val();  

        $("select.area").hide();  

        if(ccode){  

            $("select.area[citycode="+ccode+"]").show();  

        }  

    });  

    var sltcity = $("select.city").val();  

    if(sltcity){  

         $("select.area[citycode="+sltcity+"]").show();  

    }  

     

    下面是详细的:

    jquery radio取值,checkbox取值,select取值,radio选中,checkbox选中,select选中,及其相关设置

     

    获取一组radio被选中项的值:var item = $('input[name=items][checked]').val();

    获取select被选中项的文本:var item = $("select[@name=items] option[@selected]").text();

    获取select被选中项的文本 :var item = $("select[name=items] option[selected]").text(); 或$("select[name=items]").find("option:selected").text();

    select下拉框的第二个元素为当前选中值:$('#select_id')[0].selectedIndex = 1;

    select下拉框value = 'val'的元素为当前选中项:$("select[name=items] option[value='val']").attr("selected","selected");

    radio单选组的第二个元素为当前选中项 :$('input[@name=items]').get(1).checked = true; 或$('input[name=items]').attr("checked", '1′);

    radio的value = 'val'的元素为当前选中项:$('input[name=items] [value='val']').attr("checked","checked");

     

    获取值:

    文本框,文本区域:$("#txt").attr("value");

    多选框checkbox:$("input[name='checkbox':checked]").each(function(){

    var val = $(this).val();

    });

    单选组radio: $("input[type=radio][checked]").val();

    下拉框select的value值: $('select').val();

    下拉框select选中的text 值:$("select").find("option:selected").text();

    控制表单元素:

    文本框,文本区域:$("#txt").attr("value","); //清空内容

                           $("#txt").attr("value",'11′); //填充内容

    多选框checkbox:

    checkbox的第二个元素被打勾:$("input[name=items]").get(1).checked = true; //打勾

                                               $("input[name=items]").get(1).checked = false; //不打勾

    checkbox的value='val'的元素前打勾:$("input[name=item][value='val']").attr("checked",true); 或$("input[name=item][value='val']").attr("checked","checked");

    if($("input[name=item][value='val']").attr('checked')==true) //判断是否已经打勾

    单选组radio: $("input[type=radio]").attr("checked",'2′);//设置value=2的项目为当前选中项

    下拉框select: $("#sel").attr("value",'-sel3′);//设置value=-sel3的项目为当前选中项

    $("").appendTo("#sel")//添加下拉框的option

    $("#sel").empty();//清空下拉框

     

    jQuery获取Radio选择的Value值

     

    代码

    $("input[name='radio_name'][checked]").val(); //选择被选中Radio的Value值

    $("#text_id").focus(function(){//code...}); //事件 当对象text_id获取焦点时触发

    $("#text_id").blur(function(){//code...}); //事件 当对象text_id失去焦点时触发

    $("#text_id").select(); //使文本框的Vlaue值成选中状态

    $("input[name='radio_name'][value='要选中Radio的Value值'").

    attr("checked",true); //根据Value值设置Radio为选中状态

    jQuery获取CheckBox选择的Value值

    $("input[name='checkbox_name'][checked]"); //选择被选中CheckBox元素的集合 如果你想得到Value值你需要遍历这个集合

    $($("input[name='checkbox_name'][checked]")).

    each(function(){arrChk+=this.value + ',';});//遍历被选中CheckBox元素的集合 得到Value值

    $("#checkbox_id").attr("checked"); //获取一个CheckBox的状态(有没有被选中,返回true/false)

    $("#checkbox_id").attr("checked",true); //设置一个CheckBox的状态为选中(checked=true)

    $("#checkbox_id").attr("checked",false); //设置一个CheckBox的状态为不选中(checked=false)

    $("input[name='checkbox_name']").attr

    ("checked",$("#checkbox_id").attr("checked"));//根据3,4,5条,你可以分析分析这句代码的意思

    $("#text_id").val().split(","); //将Text的Value值以','分隔 返回一个数组

     

     jquery1.3.2

    ISDARK : $("input[@type=radio][name=ISDARK][checked]").val()

     

    $("input[name=radioname][value=radio值]").attr("checked","checked");

     

    Statement of this Website
    The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

    Hot AI Tools

    Undresser.AI Undress

    Undresser.AI Undress

    AI-powered app for creating realistic nude photos

    AI Clothes Remover

    AI Clothes Remover

    Online AI tool for removing clothes from photos.

    Undress AI Tool

    Undress AI Tool

    Undress images for free

    Clothoff.io

    Clothoff.io

    AI clothes remover

    Video Face Swap

    Video Face Swap

    Swap faces in any video effortlessly with our completely free AI face swap tool!

    Hot Tools

    Notepad++7.3.1

    Notepad++7.3.1

    Easy-to-use and free code editor

    SublimeText3 Chinese version

    SublimeText3 Chinese version

    Chinese version, very easy to use

    Zend Studio 13.0.1

    Zend Studio 13.0.1

    Powerful PHP integrated development environment

    Dreamweaver CS6

    Dreamweaver CS6

    Visual web development tools

    SublimeText3 Mac version

    SublimeText3 Mac version

    God-level code editing software (SublimeText3)

    PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

    PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

    7 PHP Functions I Regret I Didn't Know Before 7 PHP Functions I Regret I Didn't Know Before Nov 13, 2024 am 09:42 AM

    If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op

    How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

    Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

    Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

    JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

    PHP Program to Count Vowels in a String PHP Program to Count Vowels in a String Feb 07, 2025 pm 12:12 PM

    A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

    How do you parse and process HTML/XML in PHP? How do you parse and process HTML/XML in PHP? Feb 07, 2025 am 11:57 AM

    This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

    Explain late static binding in PHP (static::). Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

    Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

    What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? Apr 03, 2025 am 12:03 AM

    What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

    See all articles