一个表数据库上的php多输入搜索表单

我创建了搜索表单，它工作正常，但我想添加另一个字段，用于在数据库的任何列中搜索字母

这是我要添加的查询：

mysqli_query($conn,"SELECT * FROM tbl_subcontractor where db_RelatedCustome like '%$search%' or db_LevelofPriority like '%$search%' or db_Category like '%$search%' or db_Subcategories like '%$search%' or db_ProductOrService like '%$search%' or db_CompanyName like '%$search%' or db_Namecontactperson like '%$search%' or db_evaluation like '%$search%'  ")or die(mysqli_error($conn));

此图解释以下形式：

这是我用于搜索的代码：

if(isset($_POST['submit'])) {
        $RelatedCustome=$_POST['txt_RelatedCustomer'];
        $LevelofPriority=$_POST['txt_LevelofPriority'];
        $category=$_POST['txt_category'];
        $subcategories=$_POST['txt_subcategories'];
        $ProductOrService=$_POST['txt_ProductOrService'];
        $CompanyName=$_POST['txt_CompanyName'];
        $Namecontactperson=$_POST['txt_Namecontactperson'];
        $evaluation=$_POST['txt_evaluation'];
        $search=$_POST['txt_search'];


    $q = array();  
        $sql = "";  
        if(isset($_POST['txt_RelatedCustomer']) && !empty($_POST['txt_RelatedCustomer'])){  
        $RelatedCustome = mysqli_real_escape_string($conn,$_POST['txt_RelatedCustomer']); 
        $q[] = " db_RelatedCustome='".$RelatedCustome."' ";      
        }  
        if(isset($_POST['txt_LevelofPriority']) && !empty($_POST['txt_LevelofPriority'])){  
        $LevelofPriority =  mysqli_real_escape_string($conn,$_POST['txt_LevelofPriority']); 
        $q[] = " db_LevelofPriority='".$LevelofPriority."' ";      
        }  
          if(isset($_POST['txt_category']) && !empty($_POST['txt_category'])){  
          $category =  mysqli_real_escape_string($conn,$_POST['txt_category']); 
        $q[] = " db_Category='".$category."' ";      
        } 
          if(isset($_POST['txt_subcategories']) && !empty($_POST['txt_subcategories'])){  
          $subcategories =  mysqli_real_escape_string($conn,$_POST['txt_subcategories']); 
        $q[] = " db_Subcategories='".$subcategories."' ";      
        } 
           if(isset($_POST['txt_ProductOrService']) && !empty($_POST['txt_ProductOrService'])){ 
        $ProductOrService =  mysqli_real_escape_string($conn,$_POST['txt_ProductOrService']);            
        $q[] = " db_ProductOrService='".$ProductOrService."' ";      
        } 
           if(isset($_POST['txt_CompanyName']) && !empty($_POST['txt_CompanyName'])){  
           $CompanyName =  mysqli_real_escape_string($conn,$_POST['txt_CompanyName']); 
        $q[] = " db_CompanyName='".$CompanyName."' ";      
        } 
           if(isset($_POST['txt_Namecontactperson']) && !empty($_POST['txt_Namecontactperson'])){  
           $Namecontactperson =  mysqli_real_escape_string($conn,$_POST['txt_Namecontactperson']); 
        $q[] = "db_Namecontactperson='".$Namecontactperson."' ";      
        } 
           if(isset($_POST['txt_evaluation']) && !empty($_POST['txt_evaluation'])){  
           $evaluation =  mysqli_real_escape_string($conn,$_POST['txt_evaluation']); 
        $q[] = "db_evaluation='".$evaluation."' ";      
        } 

        $first = true; 
        foreach($q as $qu){  
            if($first){  
            $sql .= " where ".$qu;      
            $first = false;  
            }else{  
            $sql .= " and ".$qu;          
            } 
        }  
        echo $sql;


        $result=mysqli_query($conn,"SELECT * FROM tbl_subcontractor {$sql}")or die(mysqli_error($conn));
        $count=mysqli_num_rows($result);
        if($count==0){echo"no result.";}
        else{
                echo"<table class='table table-hover table-responsive table-bordered' id='alternatecolor'>";
    echo"<tr>";
      echo" <td style='background:#f7ac01;font-size:16px;'>Related Customer</td>
            <td style='background:#f7ac01;font-size:16px;'>Level of Priority</td>
            <td style='background:#f7ac01;font-size:16px;'>Category</td>
            <td style='background:#f7ac01;font-size:16px;'>Subcategory</td>
            <td style='background:#f7ac01;font-size:16px;'>Product Or Service</td>
            <td style='background:#f7ac01;font-size:16px;'>Company Name</td>
            <td style='background:#f7ac01;font-size:16px;'>Name contact person</td>
            <td style='background:#f7ac01;font-size:16px;'>Evaluation</td>
            <td style='background:#f7ac01;font-size:16px;'>Phone</td>
            <td style='background:#f7ac01;font-size:16px;'>Phone 2</td>
            <td style='background:#f7ac01;font-size:16px;'>Whatsapp</td>
            <td style='background:#f7ac01;font-size:16px;'>Mobile</td>
            <td style='background:#f7ac01;font-size:16px;'>Web</td>
            <td style='background:#f7ac01;font-size:16px;'>Location</td>
            <td style='background:#f7ac01;font-size:16px;'>Comment</td>
            ";
     echo"</tr>";
        while($res=mysqli_fetch_array($result)){
        $RelatedCustome=$res['db_RelatedCustome'];
        $LevelofPriority=$res['db_LevelofPriority'];
        $category=$res['db_Category'];
        $subcategories=$res['db_Subcategories'];
        $ProductOrService=$res['db_ProductOrService'];
        $CompanyName=$res['db_CompanyName'];
        $Namecontactperson=$res['db_Namecontactperson'];
        $evaluation=$res['db_evaluation'];
        $phone=$res['db_Phone'];
        $phone_2=$res['db_phone2'];
        $whatsapp=$res['db_Phonewhatsapp'];
        $mobile=$res['db_mobile'];
        $web=$res['db_web'];
        $location=$res['db_Location'];
        $comment=$res['db_comment'];


        echo"<tr>";
    echo"<td >"; echo $RelatedCustome; echo"</td>";
    echo"<td >"; echo $LevelofPriority; echo"</td>";
    echo"<td>"; echo  $category; echo"</td>";
    echo"<td >"; echo $subcategories; echo"</td>";
    echo"<td >"; echo $ProductOrService; echo"</td>";
    echo"<td >"; echo $CompanyName; echo"</td>";
    echo"<td >"; echo $Namecontactperson; echo"</td>";
    echo"<td>"; echo $phone; echo"</td>";
    echo"<td>"; echo $phone_2; echo"</td>";
    echo"<td>"; echo $whatsapp; echo"</td>";
    echo"<td>"; echo $mobile; echo"</td>";
    echo"<td>"; echo $whatsapp; echo"</td>";
    echo"<td>"; echo $web; echo"</td>";
    echo"<td>"; echo $location; echo"</td>";
    echo"<td>"; echo $comment; echo"</td>";

    echo"</tr>";    

            }echo"</table>";
         }}

if（isset（$\u POST['submit']））{
$RelatedCustome=$\u POST['txt\u RelatedCustomer']；
$LevelofPriority=$_POST['txt_LevelofPriority']；
$category=$\u POST['txt\u category']；
$subcategories=$\u POST['txt\u subcategories']；
$ProductOrService=$\u POST['txt\u ProductOrService']；
$CompanyName=$\u POST['txt\u CompanyName']；
$namecontperson=$\u POST['txt\u namecontperson']；
$evaluation=$_POST['txt_evaluation']；
$search=$\u POST['txt\u search']；
$q=数组（）；
$sql=“”；
如果（isset（$_POST['txt\u RelatedCustomer']）和（$_POST['txt\u RelatedCustomer']）为空（$_POST['txt\u RelatedCustomer']）{
$RelatedCustome=mysqli\u real\u escape\u字符串（$conn，$\u POST['txt\u RelatedCustomer']）；
$q[]=“db_relatedcustme=”。“$relatedcustme.”；
}  
如果（设置（$_POST['txt_LevelofPriority']）和（$_POST['txt_LevelofPriority']）为空（$_POST['txt_LevelofPriority']）{
$LevelofPriority=mysqli\u real\u escape\u字符串（$conn，$\u POST['txt\u LevelofPriority']）；
$q[]=“db_优先级别=”。“$LevelofPriority.”；
}  
如果（isset（$_POST['txt_category']）和（$_POST['txt_category']）为空（$_POST['txt_category']）{
$category=mysqli\u real\u escape\u字符串（$conn，$\u POST['txt\u category']）；
$q[]=“db_Category=”。“$Category.”；
} 
如果（isset（$_POST['txt_subcategories']）和（$_POST['txt_subcategories']）为空（$_POST['txt_subcategories']）{
$subcategories=mysqli\u real\u escape\u字符串（$conn，$\u POST['txt\u subcategories']）；
$q[]=“db_子类别=”。“$Subcategories.”；
} 
如果（设置（$_POST['txt\u ProductOrService']）和（$_POST['txt\u ProductOrService']）为空（$_POST['txt\u ProductOrService']）{
$ProductOrService=mysqli\u real\u escape\u字符串（$conn，$\u POST['txt\u ProductOrService']）；
$q[]=“db_ProductOrService=”。“$ProductOrService.”；
} 
如果（isset（$\u POST['txt\u CompanyName']）和（$\u POST['txt\u CompanyName']）为空（$\u POST['txt\u CompanyName']）{
$CompanyName=mysqli\u real\u escape\u字符串（$conn，$\u POST['txt\u CompanyName'）；
$q[]=“db_CompanyName=””、$CompanyName.“；
} 
如果（设置（$_POST['txt\u Namecontactperson']）和（$_POST['txt\u Namecontactperson']）为空（$_POST['txt\u Namecontactperson']）{
$namecontperson=mysqli\u real\u escape\u字符串（$conn，$\u POST['txt\u namecontperson']）；
$q[]=“db_Namecontactperson=”，“$Namecontactperson.”；
} 
如果（isset（$_POST['txt_evaluation']）和（$_POST['txt_evaluation']）为空（$_POST['txt_evaluation']）{
$evaluation=mysqli\u real\u escape\u字符串（$conn，$\u POST['txt\u evaluation']）；
$q[]=“db_评估=”。“$evaluation.”；
} 
$first=true；
foreach（$q为$qu）{
如果（$第一）{
$sql.=“其中”$qu；
$first=false；
}否则{
$sql.=“和”$qu；
} 
}  
echo$sql；
$result=mysqli_query（$conn，“从tbl_分包商{$sql}中选择*）或die（mysqli_error（$conn））；
$count=mysqli\u num\u行（$result）；
如果（$count==0）{echo“无结果”。；}
否则{
回声“；
回声“；
“回声”相关客户
优先级别
类别
子类别
产品或服务
公司名称
联系人姓名
评价
电话
电话2
WhatsApp
可移动的
网状物
位置
评论
";
回声“；
而（$res=mysqli\u fetch\u数组（$result））{
$relatedcustme=$res['db_relatedcustme']；
$LevelofPriority=$res['db_LevelofPriority']；
$category=$res['db_category']；
$subcategories=$res['db_subcategories']；
$ProductOrService=$res['db_ProductOrService']；
$CompanyName=$res['db_CompanyName']；
$namecontperson=$res['db_namecontperson']；
$evaluation=$res['db_evaluation']；
$phone=$res['db_phone']；
$phone_2=$res['db_phone 2']；
$whatsapp=$res['db_Phonewhatsapp']；
$mobile=$res['db_mobile']；
$web=$res['db_-web']；
$location=$res['db_location']；
$comment=$res['db_comment']；
回声“；
echo“”；echo$relatedcustme；echo“”；
echo“；echo$LevelofPriority；echo”；
echo“”；echo$类别；echo“”；
echo“”；echo$子类别；echo“”；
echo“”；echo$ProductOrService；echo“”；
echo“”；echo$CompanyName；echo“”；
echo“”；echo$Namecontactperson；echo“”；
echo“”；echo$电话；echo“”；
echo”“；echo$phone_2；echo”“；
echo”“；echo$whatsapp；echo”“；
echo“”；echo$mobile；echo“”；
echo”“；echo$whatsapp；echo”“；
echo“”；echo$web；echo“”；
echo“”；echo$位置；echo“”；
echo“”；echo$注释；echo“”；
回声“；
}回声“；
}}

---

如何将查询与代码混合以获得完美的结果。

在all您的q数组中，您应该像这样使用“%”

  $q[] = "db_evaluation='%".$search."%'";   

并将这部分代码更改为

$first = true; 
foreach($q as $qu){  
    if($first){  
    $sql .= " where ".$qu;      
    $first = false;  
    }else{  
    $sql .= " or ".$qu;          
    } 
}  

---

我找到了解决方案，非常感谢您抽出时间为我提供解决方案的想法

 $qq=array();
             if(isset($_POST['txt_search']) && !empty($_POST['txt_search'])){  
           $search =  mysqli_real_escape_string($conn,$_POST['txt_search']); 
        $qq[] = "db_evaluation like '%".$search."%' ";  
        $qq[] = "db_Namecontactperson like '%".$search."%' "; 
        $qq[] = " db_CompanyName like '%".$search."%' ";   
        $qq[] = " db_ProductOrService like '%".$search."%' ";  
        $qq[] = " db_Subcategories like '%".$search."%' "; 
        $qq[] = " db_Category like '%".$search."%' "; 
        $qq[] = " db_LevelofPriority like '%".$search."%' "; 
        $qq[] = " db_RelatedCustome like '%".$search."%' ";
        } 
     foreach($qq as $qu){  
            if($second){  
            $sql .= " where  ".$qu;      
            $second = false;  
            }else{  
            $sql .= " or ".$qu;          
            } 
        }  

---

你想做什么？你想用这些代码创建这个查询吗？是的，请我想为搜索字段添加这个查询示例：如果我在搜索字段中添加'e'，而另一个字段为空，则搜索结果将是数据库中包含'e'的所有数据。请回显“SELECT*FROM tbl_{$sql}”，并告诉我resultecho$sql；结果是db_RelatedCustome='q'和db_evaluation='5'不起作用我希望我发布的代码对所有其他字段仍然有效，但搜索输入与我之前发布的查询一样，只在一个按钮中起作用，但不同