Question

我尝试使用PHP在sql DB上插入数据，但它无法正常工作。告诉我这里有什么问题

此处的SQL代码

CREATE TABLE `billing` (
  `user_id` int(10) UNSIGNED NOT NULL,
  `student_name` varchar(9) NOT NULL,
  `student_roll` varchar(9) NOT NULL,
  `student_batch_ID` varchar(9) NOT NULL,
  `students_course` varchar(9) NOT NULL,
  `students_payble_ammount` varchar(9) NOT NULL,
  `payment_recived_date` varchar(9) NOT NULL,
  `ammount_recived_by` varchar(9) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

HTML和PHP代码

<form method="post" action="<?php $_PHP_SELF ?>" name="new-Billing-Info-entry-form" id="new_record_form" class="border-style-1" enctype="multipart/form-data">
   <label class="form-label-FOR-student-name border-style-1">Name:</label>
   <input  type="text" name="input_s_name" class="form-input-FOR-student-name border-style-1 form-control" placeholder="Enter Student Name"/>
       <br/><br/>
   <label class="form-label-FOR-student-name border-style-1">Roll:</label>
   <input class="form-input-FOR-student-name border-style-1 form-control" type="text" name="input_s_roll" placeholder="Enter Roll Number"/>
       <br/><br/>
   <label class="form-label-FOR-student-name border-style-1">Batch:</label>
   <input class="form-input-FOR-student-name border-style-1 form-control" type="text" name="input_s_batch" placeholder="Enter Batch Number"/>
       <br/><br/>
   <label class="form-label-FOR-student-name border-style-1">Course:</label>
   <input name="input_s_course" type="text" class="form-input-FOR-student-name border-style-1 form-control" placeholder="Enter Course Name"/>
       <br/><br/>
   <label class="form-label-FOR-student-name border-style-1">Ammount:</label>
   <input name="input_s_payble_ammount" type="text" class="form-input-FOR-student-name border-style-1 form-control" placeholder="Enter Payble Ammount"/>
       <br/><br/>
   <label class="form-label-FOR-student-name border-style-1">Date:</label>
   <input id="input-date" class="form-input-FOR-student-name border-style-1 form-control" type="text" name="input_s_paid_date" placeholder="Select Billing Date"/>
       <br/><br/>
   <button type="submit" class="btn btn-primary save-btn-1" name="s_payment_info_save_btn">LOOKS GOOD, Save</button>
</form> 

<?php if(isset($_POST['s_payment_info_save_btn'])!="")
  {
  $mysql_hostname = "localhost";
  $billing_phpmyadmin_uid = "root";
  $billing_phpmyadmin_pass = "";
  $billing_db_Name = "student_billing";

  $billing_db_connection = mysql_connect($mysql_hostname, $billing_phpmyadmin_uid, $billing_phpmyadmin_pass, $billing_db_Name);

  $input_student_name = mysql_real_escape_string($_POST['input_s_name']);
  $input_student_roll = mysql_real_escape_string($_POST['input_s_roll']);
  $input_student_batch = mysql_real_escape_string($_POST['input_s_batch']);
  $input_student_course = mysql_real_escape_string($_POST['input_s_course']);
  $input_student_payble_ammount = mysql_real_escape_string($_POST['input_s_payble_ammount']);
  $input_student_paid_date = mysql_real_escape_string($_POST['input_s_paid_date']);



  if(!$billing_db_connection){
      echo "<script type='text/javascript'> $(window).load(function(){ $('#modal_billing_DB_connection_error').modal('show'); }); </script>";
      exit();
  }else{
      /* echo "<script type='text/javascript'> $(window).load(function(){ $('#modal_billing_DB_connection_success').modal('show'); }); </script>"; */
  }

 $billing_data_insert = "INSERT INTO `billing` (`student_name`, `student_roll`, `student_batch_id`, `students_course`, `students_payble_ammount`, `payment_recived_date`) VALUES ($input_student_Name, $input_student_roll, $input_student_batch, $input_student_course, $input_student_payble_ammount, $input_student_paid_date)";


  if(!$billing_data_insert){
      echo "<script type='text/javascript'> $(window).load(function(){ $('#modal_bill_successfully_generate_notification').modal('show'); }); </script>";
  }else{
      echo "<script type='text/javascript'> $(window).load(function(){ $('#modal_bill_error_generate_notification').modal('show'); }); </script>";
  }


  echo "<br/>", $input_student_name, "<br/>", $input_student_roll, "<br/>", $input_student_batch, "<br/>", $input_student_course, "<br/>", $input_student_payble_ammount, "<br/>", $input_student_paid_date;

  mysql_close($billing_db_connection);

}

Answer 1

首先，你没有引用你的字符串。您的查询应该是这样的：

$billing_data_insert = "INSERT INTO `billing` (`student_name`, `student_roll`, `student_batch_id`, `students_course`, `students_payble_ammount`, `payment_recived_date`) VALUES ('$input_student_name', '$input_student_roll', '$input_student_batch', '$input_student_course', '$input_student_payble_ammount', '$input_student_paid_date')";

其次，你没有执行查询。像这样执行查询：

mysql_query($billing_data_insert, $billing_db_connection);

以下是参考资料：

http://php.net/manual/en/function.mysql-query.php

所以你的代码应该是这样的：

// your code

$billing_data_insert = "INSERT INTO `billing` (`student_name`, `student_roll`, `student_batch_id`, `students_course`, `students_payble_ammount`, `payment_recived_date`) VALUES ('$input_student_name', '$input_student_roll', '$input_student_batch', '$input_student_course', '$input_student_payble_ammount', '$input_student_paid_date')";
if(mysql_query($billing_data_insert, $billing_db_connection)){

    // success

}else{

    // failure

}

旁注：不要使用mysql_*函数，从PHP 5.5开始不推荐使用它们，并且在PHP 7.0中完全删除它们。请改用mysqli或pdo。 And this is why you shouldn't use mysql_* functions

Answer 2

另外如果你使用mysql_而不是mysqli_ write

   if(mysql_query($billing_data_insert))

不

  if(mysql_query($billing_data_insert, $billing_db_connection)){

sql插件无法在php中工作

2 个答案: