Saturday, 18 December 2021

b5.php - PHP#10MySQL#6 (b4.php, b5.php, b6.php)

<!doctype html>

<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
</head>

<body>
<form id="form1" name="form1" method="get">
  <p>
    <label for="chungloai">Chủng loai sp:</label>
    <select name="chungloai" id="chungloai" onChange="form1.submit();">
	<?php
		include("connect.php");
		$sl="select * from webtm_chungloaisp";
		$kq=mysqli_query($link,$sl);
		$idCL=0;
		if(isset($_GET['chungloai'])) $idCL=$_GET['chungloai']; //Gán lại giá trị cho $idCL khi người dùng chọn chủng loại khác (submit form)
		while($d=mysqli_fetch_array($kq))
		{
			if($idCL==0)$idCL=$d['idCL']; //giữ lại idCL của option đầu tiên
		?>
      <option value="<?php echo $d['idCL'];?>" <?php if($idCL==$d['idCL']) echo "selected";?>><?php echo $d['TenCL'];?></option>
      <?php }?>
    </select>
  </p>
 <?php
		$slloai="select * from webtm_loaisp where idCL=$idCL";
		$kqloai=mysqli_query($link,$slloai);
	?>
  <p>
    <label for="loaisp">Loại sp::</label>
    <select name="loaisp" id="loaisp" onChange="form1.submit()">
     <?php
		$idLoai=0;
		if(isset($_GET['loaisp'])) $idLoai=$_GET['loaisp'];
		while($dloai=mysqli_fetch_array($kqloai))
		{
			if($idLoai==0)$idLoai=$dloai['idLoai'];
		?>
      <option value="<?php echo $dloai['idLoai'];?>" <?php if($idLoai==$dloai['idLoai']) echo "selected";?>><?php echo $dloai['TenLoai'];?></option>
      <?php }?>
    </select>
  </p>
 
</form>
<?php
		$slsp="select TenSP, UrlHinh, Gia from webtm_sanpham where idLoai=$idLoai";
		$kqsp=mysqli_query($link,$slsp);
	?>
<table width="500" border="1" cellspacing="0" cellpadding="0">
  <tbody>
    <tr>
      <th scope="col">STT</th>
      <th scope="col">Tên Sản Phẩm</th>
      <th scope="col">Hình</th>
      <th scope="col">Giá</th>
    </tr>
    <?php
		$stt=1;
		while($dsp=mysqli_fetch_array($kqsp)){
		?>
    <tr>
      <td><?php echo $stt++;?></td>
      <td><?php echo $dsp['TenSP'];?></td>
      <td><img src="<?php echo $dsp['UrlHinh'];?>" width="100"  alt=""/></td>
      <td><?php echo $dsp['Gia'];?></td>
    </tr>
    <?php }?>
  </tbody>
</table>

<p>&nbsp;</p>
</body>
</html>

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