将数组从输入传递到php mysql

Question

<select name="mul_cat1[]" class="form-text"  style="width: 85%;" >
<option value="">-Select-</option>
<option value="1">Pianoforte</option>
<option value="2">All Wind</option>
</select>


<select name="mul_cat1[]" class="form-text"  style="width: 85%;" >
<option value="">-Select-</option>
<option value="1">Pianoforte</option>
<option value="2">All Wind</option>
</select>

<input  name="entrytitle1[]" type="text"  required />
<input  name="entrytitle1[]" type="text"  required />

<input  name="composer1[]" type="text"  required/>

第一个条目的结尾

开始第二个条目

<select name="mul_cat1[]" class="form-text"  style="width: 85%;" >
<option value="">-Select-</option>
<option value="1">Pianoforte</option>
<option value="2">All Wind</option>
</select>


<select name="mul_cat1[]" class="form-text"  style="width: 85%;" >
<option value="">-Select-</option>
<option value="1">Pianoforte</option>
<option value="2">All Wind</option>
</select>

<input  name="entrytitle1[]" type="text"  required />
<input  name="entrytitle1[]" type="text"  required />

<input  name="composer1[]" type="text"  required/>

我现在要做的是知道如何捕获数据并将其推送到mysql数据库。所以必须将mul_cat1推入不同行的表中，而且entrytitle必须与mulcat尊重。

所以Mysql数据库中的输出将如下所示：

id | mul_cat1 | entrytitle1 | composer1
 1 | 1 | milk | John
 2 | 2 | water | John
 3 | 2 | dance | Mark
 4 | 1 | sing | Mark

这就是我正在使用但它不起作用

$data2=array();
for($x=0,$l=count($entrytitle1); $x<$l; $x++){

    $muldata=implode(',', $mul_cat1);

    echo $muldata;
    $myArray2 = explode(',', $entrytitle1[$x]);// you can use your own filter for names 
    $myArray3 = explode(',', $muldata[$x]);// you can use your own filter for names          
    foreach (array_combine($myArray2, $myArray3) as $title => $mul) {
        $data2[]='("'.trim($title).'", "'.trim($mul).'", "'.$_SESSION['id'].'", 2, "'.$entry_id.'")';
    }
}

$query="INSERT INTO multiple_category (title_of_entry, multiple_cat,con_registration_idcon_registration, acts_idacts, entry_id) VALUES".implode(',',$data2);

$result = mysqli_query($dbc, $query);