我有一个查询我试图在我的PHP代码中运行它只返回一个结果,但如果我在phpmyadmin中运行相同的查询它可以工作。谁能告诉我哪里出错?
<?php
$sql = "SELECT * FROM `product_packs` WHERE `name` IN('" . implode("', '", $_SESSION['cart_items']) . "')";
$result = $conn->query($sql);
if ($result->num_rows > 0){
while($row = $result->fetch_assoc()){
echo "<div class='col-xs-6 col-sm-4 col-md-2 col-lg-2'>
<div class='products " . $row['brandName'] . " all " . $row['product_range'] . "' id='products'>
<div class='hovereffect'>
<img class='img-responsive productimg' src='" . $row['img'] . "' alt=''>
<div class='overlay1'>
<h2> " . $row['name'] . "</h2>
<p>
" . $row['title'] . "
<br>
<br>
" . $row['price'] . "
<br>
<a href='remove_from_cart.php?name=" . $row['name'] . "&price=" . $row['price'] . "'>
Remove From Cart
</a>
</p>
</div>
</div>
</div>";
}
?>
我打印了查询以确保内爆的结果是正确的,它似乎是因为我可以在phpmyadmin中运行结果并且它工作正常。
任何帮助都将不胜感激。
答案 0 :(得分:0)
尝试以下操作(未经测试,我没有提供足够的数据):
<强>更新:强>
<?php
$sql = "SELECT * FROM `product_packs` WHERE `name` IN('" . implode("', '", $_SESSION['cart_items']) . "')";
// dump the query send to the database
$var_dump($sql);
$result = $conn->query($sql);
if ($result->num_rows > 0){
$resultset_count = $result->num_rows;
// dump the number of resultsets in the query
var_dump($resultset_count);
while($row = $result->fetch_assoc()){
echo "<div class='col-xs-6 col-sm-4 col-md-2 col-lg-2'>
<div class='products " . $row['brandName'] . " all " . $row['product_range'] . "' id='products'>
<div class='hovereffect'>
<img class='img-responsive productimg' src='" . $row['img'] . "' alt=''>
<div class='overlay1'>
<h2> " . $row['name'] . "</h2>
<p>
" . $row['title'] . "
<br>
<br>
" . $row['price'] . "
<br>
<a href='remove_from_cart.php?name=" . $row['name'] . "&price=" . $row['price'] . "'>Remove From Cart </a>
</p>
</div>
</div>
</div>
</div>";
}
?>
答案 1 :(得分:0)
为什么不使用FIND_IN_SET
?它会对你有用,我不知道你的数据库结构,但我已经创建了一个可能对你有帮助的示例查询
为什么不使用FIND_IN_SET?它会为你工作我不知道你的数据库结构仍然我已经为你创建了查询它可能会帮助你
SELECT * FROM product_packs
WHERE (
FIND_IN_SET(cart_items, (SELECT cart_items TABLENAME
WHERE cart_items = '$_SESSION['cart_items']')
)
)
ORDER BY `product_id` ASC