警告：ocifetch（）[function.ocifetch]：ORA-24374：在获取或执行并获取之前未完成定义

Question

这是我用于单项作业的简单搜索栏：

<form name="search" method="post" action="phone_search.php">
<font size="5">Best Secondhand Mobile Phones Geelong</font> - Search the site:

<input type="text" name="term"  />
<input type="submit" name="search" value="Search" />
</form>

这是我访问oracle服务器的php代码：

echo "<h2>Results</h2>";

//Null string entered
if ($term == "")
{
    echo "You didn't enter anything!\n";
    exit;
}

//Connect to database
$dbuser = "xxxx";
$dbpass = "xxxx";
$db = "SSID";
$connect = OCILogon($dbuser, $dbpass, $db);

//Database connection error
if (!$connect) 
{
    echo "An error occurred connecting to the database.\n";
    exit;
}

//Make all lowercase
$term = strtolower($term);

$query = "'SELECT * FROM Phones WHERE lower($Name) LIKE $term' OR 'SELECT * FROM Phones WHERE lower($OS) LIKE $term' OR 'SELECT * FROM Phones WHERE lower($Chipset) LIKE $term' OR 'SELECT * FROM Phones WHERE lower($CPU) LIKE $term' OR 'SELECT * FROM Phones WHERE lower($GPU) LIKE $term'";

//Perform search
$stmt = OCIParse($connect, $query);

//And display the results
$counter = 0;
while(OCIFetch($stmt))
{
    $counter++;
    echo OCIResult($stmt, "Name");
    echo "<br>";
    echo OCIResult($stmt, "OS");
    echo "<br>";
    echo OCIResult($stmt, "Chipset");
    echo "<br>";
    echo OCIResult($stmt, "CPU");
    echo "<br>";
    echo OCIResult($stmt, "GPU");
    echo "<br>";
    echo "<br>";
}

对于空字符串，我得到正确的错误，而在输入内容时，也没有空错误。但是，我认为这条线有问题：

$query = "'SELECT * FROM Phones WHERE lower($Name) LIKE $term' OR 'SELECT * FROM Phones WHERE lower($OS) LIKE $term' OR 'SELECT * FROM Phones WHERE lower($Chipset) LIKE $term' OR 'SELECT * FROM Phones WHERE lower($CPU) LIKE $term' OR 'SELECT * FROM Phones WHERE lower($GPU) LIKE $term'";

我不断收到此错误：

Warning: ocifetch() [function.ocifetch]: ORA-24374: define not done before fetch or execute and fetch in /home/cstev/public_html/Assignment_2/phone_search.php on line 41

第41行是：

while(OCIFetch($stmt))

在发布之前，我故意将登录详细信息替换为“ xxxx”。

当我搜索此错误时，我得到：PHP搜索功能中的错误 似乎其他人在2年前针对同一分配也遇到了此问题。他收到的答案是他的搜索词可能为空。我可以告诉您，如果输入的搜索词为空，那么按照空字符串错误消息可以正常工作的问题与我不一样。

如果有人能指出正确的方向，我将不胜感激！

供参考，这是我的数据库：

DROP TABLE Phones;

CREATE TABLE Phones
     ( Name VARCHAR2(50), 
       OS VARCHAR2(50),
       Chipset VARCHAR(50),
       CPU VARCHAR(50), 
       GPU VARCHAR2(50), 
       Image VARCHAR2(50) 
     ); 

INSERT INTO Phones VALUES ('HTC Butterfly S', 'Android OS, v4.2.2 (Jelly Bean)', 'Qualcomm APQ8064T Snapdragon 600', 'Quad-core 1.9 GHz Krait 300', 'Adreno 320', 'images/htc-butterfly-s (1).jpg');

INSERT INTO Phones VALUES ('Huawei Ascend P6', 'Android OS, v4.2.2 (Jelly Bean)', 'Huawei K3V2', 'Quad-core 1.5 GHz', 'N/A', 'images/huawei-ascend-p6-ofic.jpg');

INSERT INTO Phones VALUES ('Oppo R819', 'Android OS, v4.2.1 (Jelly Bean)', 'MediaTek MT6589', 'Quad-core 1.2 GHz', 'PowerVR SGX544', 'images/oppo-r819.jpg');

INSERT INTO Phones VALUES ('Sony Xperia M', 'Android OS, v4.1 (Jelly Bean)', 'Qualcomm Qualcomm Snapdragon S4 Plus MSM8227', 'Dual-core 1 GHz Krait', 'Adreno 305', 'images/sony-xperia-m (1).jpg');

INSERT INTO Phones VALUES ('Samsung Galaxy Core', 'Android OS, v4.1.2 (Jelly Bean)', 'Snapdragon MSM8225 S4 Play', 'Dual-core 1.2 GHz Cortex-A5', 'Adreno 203', 'images/samsung-galaxy-core-gt-i8260 (1).jpg');

INSERT INTO Phones VALUES ('Motorola Moto X', 'Android OS, v4.2.2 (Jelly Bean)', 'Qualcomm MSM8960Pro Snapdragon', 'Dual-core 1.7 GHz Krait', 'Adreno 320', 'images/moto-x.jpg');

commit;

Answer 1

我猜你忘了

ociexecute($stmt, OCI_DEFAULT);

之后

$stmt = OCIParse($connect, $query);

在之前：

while(OCIFetch($stmt))

所以它看起来像这样：

//Perform search
$stmt = OCIParse($connect, $query);

// Execute statement
ociexecute($stmt, OCI_DEFAULT);

//And display the results
$counter = 0;
while(OCIFetch($stmt))
{
    $counter++;
...

这里更多