本来想去yiichina问的,但是上面很水,基本只有站长偶尔回复一下!
就是类似于城市三级联动那种,选中一级之后,在后一个下拉框列出下一级的分类,只是我是用于我的分类。其实用html+js+php我是可以弄出来的,只是这样会抛弃yii
自带的表单生成方法,也会失去他的验证!
暂时先用自己会的方法弄了,如果有大神知道,再改成YII
风格的~
回复内容:
本来想去yiichina问的,但是上面很水,基本只有站长偶尔回复一下!
就是类似于城市三级联动那种,选中一级之后,在后一个下拉框列出下一级的分类,只是我是用于我的分类。其实用html+js+php我是可以弄出来的,只是这样会抛弃yii
自带的表单生成方法,也会失去他的验证!
暂时先用自己会的方法弄了,如果有大神知道,再改成YII
风格的~
Yii2本身没有联动效果插件,都是用其他类拼接起来的,不过你自己可以写插件。yii2的例子没有,之前写过yii1的联动效果。你不想失去本身的验证,只要input的name跟模型中的一样就行了。
<code>//view <div class="form-group row"> <div class="col-md-1"> <?php echo $form->dropDownList($blog,'mid',CHtml::listData(Metas::model()->parents(),'mid','name'), array ( 'class'=>'form-control', 'empty'=>array('0'=>'请选择类别'), 'onchange'=>'ajaxGetArea(this)')); ?> <?php echo $form->error($blog,'mid'); ?> </div> </div> //js Yii::app()->clientScript->registerScript('metas', ' function ajaxGetArea(obj) { //请求地址 var link = "'.Yii::app()->createUrl("/cms/metas/json").'"; //请求数据 $.post( link, { parent : $(obj).val() }, function(data) { //清除子类的select $(obj).parent().nextAll("div").each(function() { $(this).remove(); }); if (data != "-1") { //构造子类select的html var select = null; // 此处注意添加onchange事件 select = "<div class='\"col-md-1\"'><select class='\"form-control\"' name='\"Articles[mid]\"' onchange='\"ajaxGetArea(this)\"'><option value='\"-1\"'>请选择类别</option>"; $.each(data, function(key, item) { select += "<option value="+item.mid+">"+item.name+"</option>"; }); select += "</select></div>"; //插入到右侧,上一级 $(obj).parent().after(select); //触发下一个子类select的动态加载 //$(obj).next("select").trigger("change", function() { //ajaxGetArea($(this)); //}); //更新name的位置 $(obj).removeAttr("id"); $(obj).next("select").attr("id", "Articles_mid"); $(obj).removeAttr("name"); $(obj).next("select").attr("name", "Articles[mid]"); } }, "json" ); } ',CClientScript::POS_END); </code>
http://www.cnsecer.com/7140.html 不要谢我

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

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.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

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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