Php mysql没有'；我不喜欢我的陈述
我试图从数据库中的relationships表调用book details，mysql在代码语法方面抛出了一个错误。上一页是Php mysql没有'；我不喜欢我的陈述,php,mysql,Php,Mysql,我试图从数据库中的relationships表调用book details，mysql在代码语法方面抛出了一个错误。上一页是 <html> <head> <title>Retrieve Relationships</title> </head> <body> <dl> <?php // Connect to database server
<html>
<head>
<title>Retrieve Relationships</title>
</head>
<body>
<dl>
<?php
// Connect to database server
mysql_connect("localhost","","") or die (mysql_error ());
// Select database
mysql_select_db("test") or die(mysql_error());
// Get data from the database depending on the value of the id in the URL
$title = (isset($_GET['title']) && is_string($_GET['title'])) ? $_GET['title'] : null;
$sTitle = mysql_real_escape_string($title);
$strSQL = "SELECT relationships.bookone, relationships.booktwo, relationships.relationship
FROM relationships, books
WHERE books.bookid=relationships.bookone AND relationships.bookone='{$sTitle}'";
$rs = mysql_query($strSQL)
// Loop the recordset $rs
while($row = mysql_fetch_array($rs)){
// Write the data of the person
echo "<dt>Book One:</dt><dd>" . $row["bookone"] . "</dd>";
echo "<dt>Book Two:</dt><dd>" . $row["booktwo"] . "</dd>";
echo "<dt>Relationship:</dt><dd>" . $row["relationship"] . "</dd>";
echo "<dt>Likes:</dt><dd>" . $row["relationshiplikes"] . "</dd>";
echo "<dt>Dislikes:</dt><dd>" . $row["relationshipdislikes"] . "</dd>";
}
// Close the database connection
mysql_close();
?>
</dl>
<p><a href="search.php">Return to the list</a></p>
</body>
</html>
检索关系
应该是：
$strSQL = "SELECT relationships.bookone, relationships.booktwo, relationships.relationship
FROM relationships, books
WHERE books.bookid=relationships.bookone AND relationships.bookone='{$_GET['bookone']}'";
$title = (isset($_GET['title']) && is_string($_GET['title'])) ? $_GET['title'] : null;
$sTitle = mysql_real_escape_string($title);
$strSQL = "SELECT relationships.bookone, relationships.booktwo, relationships.relationship
FROM relationships, books
WHERE books.bookid=relationships.bookone AND relationships.bookone='{$sTitle}'";
但事实上，它应该是：
$strSQL = "SELECT relationships.bookone, relationships.booktwo, relationships.relationship
FROM relationships, books
WHERE books.bookid=relationships.bookone AND relationships.bookone='{$_GET['bookone']}'";
$title = (isset($_GET['title']) && is_string($_GET['title'])) ? $_GET['title'] : null;
$sTitle = mysql_real_escape_string($title);
$strSQL = "SELECT relationships.bookone, relationships.booktwo, relationships.relationship
FROM relationships, books
WHERE books.bookid=relationships.bookone AND relationships.bookone='{$sTitle}'";
情况相当糟糕：）
（更不用说，如果用户搜索标题中带有撇号的书籍，它也会无害地中断。）似乎您不需要此表的联接。实际上，您根本没有使用books表。看起来您所需要的只是：
SELECT r.bookone, r.booktwo, r.relationship FROM relationships AS r WHERE r.bookone='{$sTitle}'
但是，稍后您将使用列relationshiplikes
和relationshipdislikes
，这两个列不是通过此查询获取的。所以也许你真正想要的是：
SELECT r.* FROM relationships AS r WHERE r.bookone='{$sTitle}'
更改为$rs=mysql\u query（$strSQL）或die（mysql\u error（））
并查看它的含义如果是字符串，则输入查询的变量需要用单引号括起来。另外，您的代码对SQL注入是开放的。您在查询中没有关闭这一个引号：'{$sTitle}
现在这一行代码出现了问题，警告：mysql\u fetch\u array（）希望参数1在（$row=mysql\u fetch\u array（$sTitle）或die（mysql\u error（））时关闭（$mysql\u error（）），谢谢您的帮助@user1393064您仍然需要将$rs传递给mysql\u fetch\u数组，而不是$sTitle$sTitle包含转义的标题，而不是mysql_fetch_数组所需的查询资源。我以前有%rs，但它抛出了一个未定义的错误。我假设您的意思是$rs
，而不是%rs
？如果它们定义在同一个范围内，就不应该这样做。一旦我让bookone和booktwo工作，我计划添加REST，您需要整个关系行吗？然后选择r.*