Some problems encountered by personal php mysql database

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1. About a The two forms on the page submit data to the database

You only need to set the buttons for submitting data to different class attributes or id attributes; perform separate submissions and write js separately; it does not affect the submission of data at all

2. Enter the check box information into the mysql database

Set the same class attribute for all input boxes; then enter the following code when making an ajax data request

<p class="checkbox_p">   
<input class="checkbox subject" type="checkbox" name="subject" value="全科" />   
<span class="checkbox_span">全科</span>   
<input class="checkbox subject" type="checkbox" name="subject" value="语文" />   
<span class="checkbox_span">语文</span>   
<input class="checkbox subject" type="checkbox" name="subject" value="数学" />   
<span class="checkbox_span">数学</span>  
 <input class="checkbox subject" type="checkbox" name="subject" value="英语" />   
 <span class="checkbox_span">英语</span></p><p class="checkbox_p">   
 <input class="checkbox subject" type="checkbox" name="subject" value="物理" />   
 <span class="checkbox_span">物理</span>   
 <input class="checkbox subject" type="checkbox" name="subject" value="化学" />   
 <span class="checkbox_span">化学</span>   
 <input class="checkbox subject" type="checkbox" name="subject" value="生物" />   
 <span class="checkbox_span">生物</span>   
 <input class="checkbox subject" type="checkbox" name="subject" value="地理" />   
 <span class="checkbox_span">政史生</span></p>
//js部分

var val='';
//获取所有的被选中的数据
$("input[type=checkbox]:checked").each(function (index, element) {
    val +=$(this).val()+' ';    
    //去除逗号    
    // val +=$(this).val()+',';   
    // val =val.substring(0, val.length - 1);
    }
    }

       

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