什么鬼? - 这正在成为一场噩梦,似乎一个又一个错误。我愿意支付某人的时间只是为了帮助我实现似乎无法实现的目标,拜托。我想要的只是一个下拉菜单,可以从中选择数据根据其类别创建一个表格并显示它..帮助! :(
<form action="portfolio.php" method="post">
<select onload="displayProject(this.value);" onchange="displayProject(this.value);">
<option value='none'>All</option>
<option value='1'>Fencing</option>
<option value='2'>Driveway</option>
</select>
</form>
<?php
$db = new mysqli('localhost', 'wlarter_user', 'pw', 'wlarter_portfolio');
if($db->connect_errno > 0){
die('Unable to connect to database [' . $db->connect_error . ']');
}
$option= $_POST['option'];
$queries = "SELECT * FROM image";
if ($option != 'none'){
$queries = "SELECT * FROM image where category=".$option;
}
$result=@mysqli_query($db,"$queries");
while($row = mysqli_fetch_array($result))
{
?>
<div class="box-portfolio"> <?php echo $row['Img']; ?> </div>
<?php
}
mysqli_close($db);
?>
最佳答案
简单地扭转它,可能就是你想要的:
$queries=$query;
进入
$query = $queries;
完整代码:
<FORM action="portfolio.php" method="post">
<SELECT onload="displayProject(this.value);" onchange="displayProject(this.value);">
<OPTION VALUE='none'>All</OPTION>
<OPTION VALUE='1'>Fencing</OPTION>
<OPTION VALUE='2'>Driveway</OPTION>
</SELECT>
</FORM>
<?php
$db = new mysqli('localhost', 'wlarter_user', 'pw', 'wlarter_portfolio');
if($db->connect_errno > 0){
die('Unable to connect to database [' . $db->connect_error . ']');
}
$option= $_POST['option'];
$queries = "SELECT * FROM image";
if ($option != 'none'){
$queries = "SELECT * FROM image where category=".$option;
}
$query=$queries;
$result=mysqli_query($db,"$query");
while($row = mysqli_fetch_array($result))
{
?>
<div class="box-portfolio"> <?php echo $row['Img']; ?> </div>
<?php
}
mysqli_close($db);
?>
关于php - 给出警告 : mysqli_fetch_array() expects parameter 1 to be mysqli_result, bool 值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/23057683/