Php 为什么这个代码只删除一个单词名的书
出于某种原因,当我调用deletebook.php时,查询始终为true,但只有当名称中有一个单词时,它才会实际删除该书。任何建议我都被困了一段时间,需要一些帮助。Php 为什么这个代码只删除一个单词名的书,php,mysqli,Php,Mysqli,出于某种原因,当我调用deletebook.php时,查询始终为true,但只有当名称中有一个单词时,它才会实际删除该书。任何建议我都被困了一段时间,需要一些帮助。 $book = $_GET["book"]; $email = $_SESSION["email"]; $servername = ""; $username = ""; $password = ""; $dbname = ""; $conn = new mysqli($s
$book = $_GET["book"];
$email = $_SESSION["email"];
$servername = "";
$username = "";
$password = "";
$dbname = "";
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// sql to delete a record
$sql = "DELETE FROM books WHERE email = '". $email ."' and name = '". $book ."'";
if ($conn->query($sql) === TRUE) {
echo "Record deleted successfully";
} else {
echo "Error deleting record: " . $conn->error;
}
$conn->close();
?>
这是managebooks.php中的相关代码
while($row = mysql_fetch_array($result)) {
echo "<div id='book'>
<ol>
<li>";
echo $row['name'];
echo "</li><li>";
echo $row['price'];
echo "</li>
</ol>
<form action='deleteBook.php' method='get'>
<input type='hidden' name='book' value=". $row['name'] ." />
<button type='submit'>Delete</button></form></div>";
}
while($row=mysql\u fetch\u array($result)){
回声“
“;
echo$row['name'];
回声“ ”;
echo$行[‘价格’];
回声“
删除”;
}
我认为你应该让你的sql字符串更干净,这可能会有帮助
$sql="DELETE FROM books WHERE email='$email' AND name='$book'";
您还可以打印$name的值,以实际查看发送到$sql字符串的内容尝试将“value”的值放在引号中。另外,在回显多行html时尝试使用;这使得计算报价更容易。
(最好将所有HTML属性的所有值加倍引用。)引用值
value='“$row['name']。”/>
你真的应该有id,并将它们用于这类事情,所以我建议你用书名contain'
和“
”>测试你的代码,例如我最喜欢的书名是”>alert()代码>谢谢abra尸体!我现在觉得很傻,今天底层的人都很忙