模仿微信公众号后台投票管理功能。
可以动态添加多个问题,每个问题下面默认有两个选项,也可动态添加多个。已经通过JS实现动态添加功能,但在PHP中无法获取到问题选项的值,单个选项的html如下
<code><input type="text" class="fyinput" name="options[][]"><span class="red">*</span> <input type="file" name="pic[][]" class="file" size="28"></code>
因为每个问题下面都有选项,如果 name="options[]"
这样就无法获知那个选项属于哪个问题。
请问如何正确设置 input
元素的 name
属性。
回复内容:
模仿微信公众号后台投票管理功能。
可以动态添加多个问题,每个问题下面默认有两个选项,也可动态添加多个。已经通过JS实现动态添加功能,但在PHP中无法获取到问题选项的值,单个选项的html如下
<code><input type="text" class="fyinput" name="options[][]"><span class="red">*</span> <input type="file" name="pic[][]" class="file" size="28"></code>
因为每个问题下面都有选项,如果 name="options[]"
这样就无法获知那个选项属于哪个问题。
请问如何正确设置 input
元素的 name
属性。
解决这样问题的开源代码太多,基本思想就是添加之前count一下目前已有input的个数,然后count+1为name设置数组 name="options["+count+"]"
贴几个现有开源代码
http://jsfiddle.net/jaredwilli/tzpg4/4/
http://bootsnipp.com/snippets/featured/dynamic-form-fields-add-amp-remove
<code>问题1 name="question[0]" 选项 name="answer[0][0]" name="answer[0][1]" 问题2 name="question[1]" 选项 name="answer[1][0]" name="answer[1][1]"</code>
通过新增一个隐藏字段来存储问题标号,动态输出问题段的代码解决了。不过,这只是添加阶段,后期的修改可能会更麻烦。在此谢过大家。

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PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

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PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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