mysqli_query 函数的问题

Question

我是 PHP 和 MySQL 的新手。我的 mysqli_query 函数之一有问题。我有一个完美工作的数据库连接，因为我的 php 文件的前半部分实际上将数据存储到数据库的某些表中。

当我想对数据库执行另一个查询时，问题就出现了。这是代码：

// INSERT statements. 
$queryMember = "INSERT INTO member (surname, name, gender, email, telHome, telMobile, dob, studentNum, idNum) VALUES ('$sur_name', '$f_name', '$gender', '$email', '$tel_home', '$mobile_num', ,'$date_of_birth', '$studentNumber', '$id_number')";

$queryAddress = "INSERT INTO physicalDetails (houseNum, unitNum, streetAdd, suburb, city, province, code ) VALUES ('$house_number', '$unit_number', '$street_address', '$suburb_name', '$city_name', '$province_name', '$zip_code')";

$queryStaff = "INSERT INTO staff (staffID ) VALUES ('$staff_id')"; 

$queryStudent = "INSERT INTO student (major ) VALUES ('$student_major')"; 

// Statements that must query the database. 
$resultMember = mysqli_query($dbc, $queryMember) or die ('Error while inserting data into member details table');

$resultAddress = mysqli_query($dbc, $queryAddress ) or die ('Error while inserting data into member physical details table');

$resultStaff = mysqli_query($dbc, $queryStaff ) or die ('Error while inserting data into staff information table' );

$resultStudent = mysqli_query($dbc, $queryStudent ) or die ('Error while inserting data into student major details table');

mysqli_close($dbc);

当我运行我的表格时，我的第一个错误如下："Error while inserting data into member details table".

我不明白为什么会出现错误。任何意见或建议将不胜感激。 :)

Answer 1

不要输出固定的（无用的）错误信息：让数据库告诉你你做错了什么：

$resultMember = mysqli_query($dbc, $queryMember) or die (mysqli_error($dbc));
                                                          ^^^^^^^^^^^^

如果你有，你会被告知你的语法错误：

    $queryMember = "[..snip..], '$mobile_num', ,'$date_of_birth', '$studentNumber', '$id_number')";
                                             ^^^^

mysqli_query 函数的问题

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