Friday, 17 December 2021

b2.php - PHP#9MySQL#5 - Submit bằng lệnh JavaScrip: onChange="form1.submit();" thay thế nút Submit - Dùng Selected khi chọn đối tượng

//connect.php

<?php
//Kết nối đến server DB:
	$link=@mysqli_connect("localhost","root","") or die("Không thể kết nối đến Server!");
	//Chọn database cần thao tác:
	mysqli_select_db($link,"webtintuc") or die("Không tồn tại DB này!");
	mysqli_query($link,"set names 'utf8'");
?>


//b2.php

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>b2_duc.php</title>
</head>

<body>
<form method="get" id="form1" name="form1">
	<p>
    <label for="chungloai">Chủng loại sp:</label>
    <select name="chungloai" id="chungloai" onChange="form1.submit();">
    <?php
		include("connect.php");
		$sl="select * from webtm_chungloaisp";
		$kq=mysqli_query($link,$sl);
		while($d=mysqli_fetch_array($kq))
		{
	?>
	  <option value="<?php echo $d['idCL'];?>" <?php if(isset($_GET['chungloai'])&&$_GET['chungloai']==$d['idCL']) echo "selected";?>><?php echo $d['TenCL'];?></option>
      <?php }?>
	</select>
	</p>
    
    <?php
    	if(isset($_GET['chungloai']))
		{
			$idCL=$_GET['chungloai'];
			$slloai="select * from webtm_loaisp where idCL=$idCL";
			$kqloai=mysqli_query($link,$slloai);
	?>
    <p>
    <label for="loaisp">Loại sp:</label>
    <select name="loaisp" id="loaisp">
    <?php
    	while($dloai=mysqli_fetch_array($kqloai))
		{
	?>
      <option value="<?php echo $dloai['idLoai'];?>"><?php echo $dloai['TenLoai'];?></option>
      <?php }?>
  	</select>
    </p>
    <?php }?>
</form>
</body>
</html>

//KẾT QUẢ:

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