Question

我有这个代码。但问题在于它仅显示基于上次选中的复选框的结果。我想在选中两个或多个复选框时显示结果。我不知道缺少什么。单击提交按钮时，我会过滤结果。

$sql = "SELECT * FROM table WHERE type ='A'";

if(isset($_POST['filter'])){

  $location = mysqli_real_escape_string($connection,$_POST['location']);

  if(empty($_POST['price'])){

    $sql = "SELECT * FROM table WHERE type ='A' AND location LIKE  '%".$location."%'";

  }else{

    foreach($_POST['price'] as $price){


    $sql = "SELECT * FROM table WHERE type ='A' AND location LIKE  '%".$location."%' AND price IN ('$price')";

    }
  }
}

$query = mysqli_query($connection,$sql) or die(mysqli_error());

这是我为其创建的html。我没有介绍结果的显示方式。我发现这与问题无关。

<form name="location form" method="POST"">
  Filter by Location: <input type="text" name="location" placeholder=" " value=""/><br><br>
  <label><strong>Price Range:</strong></label>
  <br>
  <input  class="form-check-input" name="price[]" type="checkbox" value="s 500 - s 1000">$500-$1000<br>
  <input  class="form-check-input" name="price[]" type="checkbox" value="s 2500 - s 4000">$2500-$4000<br>
  <input class="form-check-input" name="price[]" type="checkbox" value="s 5000 - s 9000">$5000-$9000<br>
  <input  class="form-check-input" name="price[]" type="checkbox" value="s 10000 - s 50000">$10000-$50000<br>
<input type="submit" name="filter" value="Filter" class="btn btn-primary" >
</form>

任何帮助将不胜感激，并祝您愉快！

更新当我选中所有复选框时，这是我回显它时的输出 s 500-s 1000s 2500-s 4000s 5000-s 9000s 10000-s 50000

Answer 1

解决了。我先将元素包装在引号中，然后将其内插到查询中。谢谢你们的帮助。

$finalprice = array(); 
foreach($_POST['price'] as $key=>$price){
    $finalprice[] = "'" . $price . "'"; 
         $sql = "SELECT * FROM table WHERE type ='A' AND location LIKE  '%".$location."%' AND price IN (".implode(',',$finalprice).")";
}

Answer 2

尝试这个;）



$sql = "SELECT * FROM table WHERE type ='A'";

if(isset($_POST['filter'])){

  $location = mysqli_real_escape_string($connection,$_POST['location']);

  if(empty($_POST['price'])){

    $sql = "SELECT * FROM table WHERE type ='A' AND location LIKE  '%".$location."%'";

  }else{

    foreach($_POST['price'] as $price){

      if($price == 500){

        $sql = "SELECT * FROM table WHERE type = 'A' AND location LIKE  '%".$location."%' AND price >= '".$price."' AND price = '".$price."' AND price = '".$price."' AND price = '".$price."' AND price





<form name="location form" method="POST"">
  Filter by Location: <input type="text" name="location" placeholder=" " value=""/><br><br>
  <label><strong>Price Range:</strong></label>
  <br>
  <input  class="form-check-input" name="price[]" type="checkbox" value="500">$500-$1000<br>
  <input  class="form-check-input" name="price[]" type="checkbox" value="2500">$2500-$4000<br>
  <input class="form-check-input" name="price[]" type="checkbox" value="5000">$5000-$9000<br>
  <input  class="form-check-input" name="price[]" type="checkbox" value="10000">$10000-$50000<br>
<input type="submit" name="filter" value="Filter" class="btn btn-primary" >
</form>

使用复选框输出mysql结果，使用php输出搜索栏

2 个答案: