PHP \ HTML脚本,用于在从下拉列表中选择项目时自动填充表单字段

时间:2012-10-17 14:05:54

标签: php html postgresql auto-populate

  

我创建了一个HTML表单,其中包含一个下拉列表   postgresql数据库,我希望在表单中有一些字段   从中选择项目时自动从数据库填充   下拉菜单。我在表格上还有其他一些字段   需要在按下提交按钮之前填写用户   将整个数据推回数据库。

     

目前我的脚本无法连接到数据库或填充   表格上的下拉列表,也无法自动填充   其他指定的表单字段(这是项目的属性)   在下拉列表中也存储在数据库中)和第二个问题   即时通讯也是将数据输入输入字段后   点击提交。它在数据库中创建一条新记录而不是   填充数据库中的必需列。有人可以   看看我的剧本并帮助我。

     

以下是使用a创建数据输入表单的脚本   下拉

 <?php
//Php Code to connect to postgresqldatabase
$PGHOST = "localhost:25376";
$PGDATABASE = "Pipeline";
$PGUSER = "postgres";
$PGPASSWORD = "Casa2009";
$PGPORT = 5432;
$db_handle = pg_connect("dbname=$PGDATABASE user=$PGUSER password=$PGPASSWORD");


//<!-- #2 -->
 if(isset($_POST['submit_1'])){
 //Code to post fieldtally data to the database
 $pipeno = pg_escape_string( $_POST['pipeno']);
 $heatno1 = pg_escape_string( $_POST['heatno1']);
 $pipeno2 = pg_escape_string( $_POST['pipeno2']);
 $heatno2 = pg_escape_string($_POST['heatno2']);
 $Djointno = pg_escape_string($_POST['Djointno']);
 $measuredlength = pg_escape_string($_POST['measuredlength']);
 $serialno = pg_escape_string($_POST['serialno']);
 $wthick= pg_escape_string($_POST['wthick']);
 $remarks= pg_escape_string($_POST['remarks']); 
 //<!-- #3 -->
$query = "Update fieldtally set  wthick = $wthick, pipeno=$pipeno,heatno1=$heatno1,pipeno2=$pipeno2,heatno2=$heatno2,Djointno=$Djointno,measuredlength=$measuredlength,serialno=$serialno,remarks=$remarks where pipeno = $pipeno;
          INSERT INTO fieldtally(wthick, pipeno,heatno1,pipeno2,heatno2,Djointno,measuredlength,serialno,remarks), 
                Select $wthick, $pipeno,$heatno1,$pipeno2,$heatno2,$Djointno,$measuredlength,$serialno,$remark,
                WHERE NOT EXISTS (select pipeno from fieldtally where pipeno = $pipeno)";

//<!-- #4a -->
 $result = pg_query($query);
 if (!$result) {
 $errormessage = pg_last_error();
 $message = "Error with query: " . $errormessage;
 }
 $message = sprintf ("These values were inserted into the pipeline database - %s %s %s %s %s %s %s %s %s",$wthick,$pipeno,$heatno1,$pipeno2,$heatno2,$Djointno,$measuredlength,$serialno,$remarks);
 }
 //<!-- #2 -->
 if(isset($_POST['submit_2'])){
 //Code to post fieldbend data under suto the database
 $pipeno = pg_escape_string( $_POST['pipeno']);
 $wthick1= pg_escape_string($_POST['wthick1']);
 $heatno1 = pg_escape_string( $_POST['heatno1']);
 $pipeno2 = pg_escape_string( $_POST['pipeno2']);
 $heatno2 = pg_escape_string($_POST['heatno2']);
 $Djointno = pg_escape_string($_POST['Djointno']);
 $measureddistance = pg_escape_string($_POST['measureddistance']);
 $benddegree = pg_escape_string($_POST['benddegree']);
 $bendtype= pg_escape_string($_POST['bendtype']); 
 $remarks= pg_escape_string($_POST['remarks']);
 //<!-- #3 -->
$query1 = "INSERT INTO fieldbend(pipeno,wthick1,heatno1,pipeno2,heatno2,Djointno,measureddistance,benddegree,bendtype,remarks)VALUES ('$pipeno','$wthick1','$heatno1','$pipeno2','$heatno2','$Djointno','$measureddistance','$benddegree','$bendtype','$remarks') ON DUPLICATE KEY UPDATE wthick1='$wthick1',heatno1='$heatno1',pipeno2='$pipeno2',heatno2='$heatno2',Djointno='$Djointno''";

//<!-- #4a -->
 $result1 = pg_query($query1);
 if (!$result1) {
 $errormessage = pg_last_error();
 $message1 = "Error with query: " . $errormessage;
 }
 $message1 = sprintf ("These values were inserted into the pipeline database - %s %s %s %s %s %s %s %s %s %s",$pipeno,$wthick1,$heatno1,$pipeno2,$heatno2,$Djointno,$measureddistance,$benddegree, $bendtype,$remarks);
 }
 //<!-- #2 -->
 if(isset($_POST['submit_3'])){
 //Code to post apptally data under suto the database
 $pipeno = pg_escape_string( $_POST['pipeno']);
 $wthick2= pg_escape_string($_POST['wthick2']);
 $tallytype = pg_escape_string( $_POST['tallytype']);
 $qty = pg_escape_string( $_POST['qty']);
 $serialno = pg_escape_string($_POST['serialno']);
 $referenceid = pg_escape_string($_POST['referenceid']);
 //<!-- #3 -->
$query2 = "INSERT INTO apptally(pipeno,wthick2,tallytype,qty,serialno,referenceid)VALUES ('$pipeno','$wthick2','$tallytype','$qty','$serialno','$referenceid') ON DUPLICATE KEY UPDATE wthick2='$wthick2', pipeno='$pipeno'";

//<!-- #4a -->
 $result2 = pg_query($query2);
 if (!$result2) {
 $errormessage = pg_last_error();
 $message2 = "Error with query: " . $errormessage;
 }
 $message2 = sprintf ("These values were inserted into the Pipeline database - %s %s %s %s %s %s",$pipeno,$wthick2,$tallytype,$qty, $serialno,$referenceid);
 }
 // Code to pull data from the database and load onto the form
 $query = 'select pipeno from fieldtally order by pipeno asc'; 
 $result = pg_query($db_handle,$query); 
 while ($row = pg_fetch_row($result))
 {
    // Creates Arrays to use in dropdowns
     $pipeno_array[] = $row[0];

 } 
 // This function creates dropdowns that will be used in the forms
 function dropdown($field_name, $num){
     // Creates the Dropdown
     //<!-- #5a -->
     $c = ($field_name == 'pipeno') ? ' onChange="check('.$num.');"' : '';
     echo "<select name=\"".$field_name."\" id=\"".$field_name.$num."\"$c>\n";
     echo "<option value=\"\"> --- Select --- </option>\n";
     // Chooses which array to use for Dropdown options
     global $pipeno_array;
     $name_array = ($field_name == 'pipeno') ? $pipeno_array : $wallthick;
     // Creates the Dropdown options based off the array above
     foreach($name_array as $k){
         echo "<option value=\"$k\">$k</option> \n"; }
     // Ends the Dropdown
     echo "</select>\n";
 }
?>
<html>
<head>
<meta charset="utf-8">
<title>UG Pipeline Field Data Capture</title>
</head>
<body>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
     </head>
      <body>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript">

<!-- #5b -->
        function check(num){
           var pipeno_id = '#pipeno_'+num;
           var pipeno = $(pipeno_id).val();
           if(pipeno != ""){
             jQuery.ajax({
             type: "POST",
             url: "check.php" , 
             data:'pipeno='+pipeno,
             cache: false,
             success: function(response){
             var response_array = JSON.parse(response);
             $('#heatno1').val(response_array['heatno1']);
             $('#pipeno2').val(response_array['pipeno2']); 
             $('#heatno2').val(response_array['heatno2']);
             $('#Djointno').val(response_array['Djointno']);
             }           
            });
           }
           else{
           $('#heatno1').val('');
           $('#pipeno2').val('');
           $('#heatno2').val('');
           $('#Djointno').val('');}
            }
  </script>
          <!-- #4b -->
 <!--<?php printf($message);?>-->

 <!-- #6.1 -->
<form action="" method="post">
 <table width="800" cellpadding= "10" cellspacing="1" border="2">
 <tr align="center" valign="top">
 <td align="center" colspan="1" rowspan="1" bgcolor="#00CC00">
 <h3>Input Field Tally Information</h3>
      Select Wall Thickness:<select name="wthick" id="wthick">
 <!-- #7.1 -->
  <option value=""> --Select-- </option> 
  <option value="9.80">  9.80  </option>
  <option value="13.50"> 13.50 </option>
  <option value="15.90"> 15.90 </option>
  </Select>           
 Select Pipe No:<?php dropdown('pipeno', 1); ?> HeatNo1: <input type="text" name="heatno1" id="heatno1"><br /><br />  
 PipeNo2: <input type="text" name="pipeno2" id="pipeno2"> HeatNo2: <input type="text" name="heatno2" id="heatno2">Joint No: <input type="text" name="Djointno"><br /><br /> 
  Input measured Length: <input type="text" name="measuredlength"> Input Serial No: <input type="text" name="serialno"><br><br> Remarks: <input type="text" name="remarks"><br><br> 
 <!-- #8.1 -->
 <input type="Submit" name="submit_1" value="Submit">
 <!-- #9.1 -->
</td></tr></table></form>
<!-- #6.2 -->
 <form action="" method="post">
 <table width="800" cellpadding= "10" cellspacing="1" border="2">
 <tr align="center" valign="top">
 <td align="center" colspan="1" rowspan="1" bgcolor="#FF99FF">
 <h3>Input Field Bend Information</h3>
  Select Wall Thickness:<select name="wthick1" id="wthick1">
 <!-- #7.2 -->
     <option value=""> --Select-- </option> 
     <option value="9.80">  9.80  </option>
     <option value="13.50">13.50 </option>
     <option value="15.90"> 15.90 </option>
  </select>
 <!-- #10.1 -->           
 Select Pipe No:<?php dropdown('pipeno', 2); ?>   HeatNo1: <input type="text" name="heatno1" id="heatno1_2"> <br><br>
 PipeNo2: <input type="text" name="pipeno2" id="pipeno2_2"> HeatNo2: <input type="text" name="heatno2" id="heatno2_2"> Joint No: <input type="text" name="Djointno"> <br><br>
 Input Measured Distance: <input type="text" name="measureddistance"> Input Bend Angle: <input type="text" name="benddegree"> <br><br>
Select Bend Type:<select name="bendtype" id="bendtype">
    <option value=""> --Select-- </option> 
    <option value="Combo">Combo</option>
    <option value="SAG">SAG</option>
    <option value="OB">OB</option>
    <option value="SBRT">SBRT</option>
    <option value="SBLT">SBLT</option>
    <option value="HBLT">HBLT</option>
    <option value="HBRT">HBRT</option><p></p> 
  Remarks: <input type="text" name="remarks"><br></br>

  <input type="Submit" name="submit_2" value="Submit"> 
 <!-- #9.2 -->
</td></tr></table></form>
<!-- #6.3 -->

<form action="" method="post">
 <table width="800" cellpadding= "10" cellspacing="1" border="2">
 <tr align="center" valign="top">
 <td align="center" colspan="1" rowspan="1" bgcolor="#99FF33">
 <h3>Input App. Tally Information</h3>
 <!-- #11 -->
       Select Wall Thickness:<select name="wthick2" id="wthick2">
 <!-- #7.3 -->
     <option value=""> --Select-- </option> 
     <option value="9.80">  9.80  </option>
     <option value="13.50"> 13.50 </option>
     <option value="15.90"> 15.90 </option>
  </select>
 <!-- #10.2 -->             
 Select Pipe No:<?php dropdown('pipeno', 3); ?>  <br><br> Input Tally Type: <input type="text" name="tallytype">
 Input Tally Qty: <input type="text" name="qty"><br></br>  Input Serial No: <input type="text" name="serialno"> 
 RefID: <input type="text" name="referenceid"><br></br>
 <!-- #8.3 -->
 <input type="Submit" name="submit_3" value="Submit">
 </td></tr></table>
</form>

</body>
</html>
  

Php脚本将数据加载到表单字段并从中推送数据   数据库 - filename = check1.php

<?php
//Php Code to connect to postgresqldatabase
$PGHOST = "localhost:25376";
$PGDATABASE = "Pipeline";
$PGUSER = "postgres";
$PGPASSWORD = "Casa2009";
$PGPORT = 5432;
$db_handle = pg_connect("dbname=$PGDATABASE user=$PGUSER password=$PGPASSWORD");

// Code to pull data from the database and load onto the form  
$pipeno = pg_escape_string($_POST['pipeno']);
$query = "SELECT * FROM fieldtally1 WHERE pipeno = $pipeno ";
$result = pg_query($db_handle,$query); 
$row = pg_fetch_row($result);
$row_info = array('heatno1'=>$row[1],'pipeno2'=>$row[2],'heatno2'=>$row[3],'jointno'=>$row[4]);
$row_info = json_encode($row_info);
print_r($row_info); 
?>
  

我点击提交按钮时有或没有数据的错误是   此

     

注意:未定义的变量:C:\ Users \ iegbulefu \ Documents \ My中的备注   第27行的网站\个人Site1 \ autopopulate.php

     

警告:pg_query():查询失败:错误:语法错误在或附近   “GGFF”第1行:   ... no2 = 67677,Djointno = 8,measuredlength = 80,serialno = 99GGFF,再重... ^   在C:\ Users \ iegbulefu \ Documents \ My Web Sites \ Personal   第30行的Site1 \ autopopulate.php

2 个答案:

答案 0 :(得分:2)

我会通过使用Ajax和JQuery来做到这一点。您需要做三件事 - 在文档的head中添加Ajax / JQuery代码,为Ajax创建要连接的php文件,然后添加onChangeid&amp; value属性到字段。

<head></head> - <title></title> -

之后添加此javascript
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript">
function check(){   
    var pipeno = $('#pipeno').val();
    if(pipeno != "pipeno"){
      jQuery.ajax({
      type: "POST",
      url: "check.php",
      data: 'pipeno='+pipeno,
      cache: false,
      success: function(response){
     var response_array = JSON.parse(response);
     $('#wallthickness').val(response_array['wallthickness']);  
     $('#jointno').val(response_array['jointno']);
     $('#measuredlength').val(response_array['measuredlength']);
     $('#serialno').val(response_array['serialno']);}
    });
    }
    else{
         $('#wallthickness').val('');   
     $('#jointno').val('');
     $('#measuredlength').val('');
     $('#serialno').val('');}
    }
</script>

然后使用代码 -

创建名为check.php的文件
<?php
 //Php Code to connect to postgresqldatabase
 include ("connection.php");
 // Code to pull data from the database and load onto the form  
 $pipeno = pg_escape_string($_POST['pipeno']);
 $query = "SELECT * FROM fieldtally WHERE pipeno = $pipeno ";
 $result = pg_query($db_handle,$query); 
 $row = pg_fetch_row($result))
 $row_info = array('wallthickness'=>$row[1],'jointno'=>$row[2],'measuredlength'=>$row[3],'serialno'=>$row[4]);

 $row_info = json_encode($row_info);
 print_r($row_info); 
?>

最后,添加id&amp; value属性到表单字段(不要更改文件,只需更新这些行)

Select Pipe No:<select name="pipeno" id="pipeno" onChange="check()"><option value="pipeno"> --Select-- </option> 
...  (keep your database connection / how you create your dropdown, etc here, just edit the option below)
 echo "<option value=\"$pipeno\"> $pipeno</option>";
... (keep your database connection / how you create your dropdown, etc. here)
</select> 
...
Input Joint No: <input type="text" name="jointno" id="jointno">
Input Wall Thickness: <input type="text" name="wallthickness" id="wallthickness">
Input measured Length: <input type="text" name="measuredlength" id="measuredlength">
Input Serial No: <input type="text" name="serialno" id="serialno">

更新10/19由于代码更改 -

我已在您的代码中放置编号的锚点,并且注释在最后。你可以在2个文件中完成所有操作,但是第二个文件check1.php只能有1个数据库查询,否则你的ajax会有错误。

autopopulate.php -

<!-- #1 -->
<?php
//Php Code to connect to postgresqldatabase
$PGHOST = "localhost:25376";
$PGDATABASE = "Pipeline";
$PGUSER = "postgres";
$PGPASSWORD = "Casa2009";
$PGPORT = 5432;
$db_handle = pg_connect("dbname=$PGDATABASE user=$PGUSER password=$PGPASSWORD");

//<!-- #2 -->
 if(isset($_POST['submit_1'])){
 //Code to post data to the database
 $pipeno = pg_escape_string( $_POST['pipeno']);
 $wallthickness = pg_escape_string($_POST['wallthickness']);
 $heatno1 = pg_escape_string( $_POST['heatno1']);
 $pipeno2 = pg_escape_string( $_POST['pipeno2']);
 $heatno2 = pg_escape_string($_POST['heatno2']);
 $jointno = pg_escape_string($_POST['jointno']);
 $measuredlength = pg_escape_string($_POST['measuredlength']);
 $serialno = pg_escape_string($_POST['serialno']); 
 $wthick= pg_escape_string($_POST['wthick']);

//<!-- #3 -->
 $query = "INSERT INTO fieldtally1(pipeno,wallthickness,heatno1,pipeno2,heatno2,jointno,measuredlength,serialno,wthick)VALUES ('$pipeno','$wallthickness','$heatno1','$pipeno2','$heatno2','$jointno','$measuredlength','$serialno','$wthick') ON DUPLICATE KEY UPDATE wallthickness='$wallthickness',heatno1='$heatno1',pipeno2='$pipeno2',heatno2='$heatno2',jointno='$jointno',measuredlength='$measuredlength',serialno='$serialno',wthick='$wthick'";

//<!-- #4a -->
 $result = pg_query($query);
 if (!$result) {
 $errormessage = pg_last_error();
 $message = "Error with query: " . $errormessage;
 }
 $message = sprintf ("These values were inserted into the database - %s %s %s %s %s %s %s %s %s",$pipeno,$wallthickness,$heatno1,$pipeno2,$heatno2,$jointno,$measuredlength,$serialno,$wthick);
 }

 // Code to pull data from the database and load onto the form
 $query = 'select pipeno, wallthickness from fieldtally1 order by pipeno asc'; 
 $result = pg_query($db_handle,$query); 
 while ($row = pg_fetch_row($result))
 {
    // Creates Arrays to use in dropdowns
     $pipeno_array[] = $row[0];
     $wallthickness_array[] = $row[1];
 } 

  // This function creates dropdowns that can be used in your forms
 function dropdown($field_name, $num){
     // Creates the Dropdown
 //<!-- #5a -->
     $c = ($field_name == 'pipeno') ? ' onChange="check('.$num.');"' : '';
     echo "<select name=\"".$field_name."\" id=\"".$field_name.$num."\"$c>\n";
     echo "<option value=\"\"> --- Select --- </option>\n";
     // Chooses which array to use for Dropdown options
     global $pipeno_array, $wallthickness_array;
     $name_array = ($field_name == 'pipeno') ? $pipeno_array : $wallthickness_array;
     // Creates the Dropdown options based off the array above
     foreach($name_array as $k){
         echo "<option value=\"$k\">$k</option> \n"; }
     // Ends the Dropdown
     echo "</select>\n";
 }

 ?>
 <html>
     <head><title>UG Pipeline Field Data Capture</title></head>
      <body>
       <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
       <script type="text/javascript">
 <!-- #5b -->
        function check(num){
           var pipeno_id = '#pipeno_'+num;
           var pipeno = $(pipeno_id).val();
           if(pipeno != ""){
             jQuery.ajax({
             type: "POST",
             url: "check1.php",
             data: 'pipeno='+pipeno,
             cache: false,
             success: function(response){
             var response_array = JSON.parse(response);
             $('#heatno1').val(response_array['heatno1']);
             $('#pipeno2').val(response_array['pipeno2']); 
             $('#heatno2').val(response_array['heatno2']);
             $('#jointno').val(response_array['jointno']);
             //$('#measuredlength').val(response_array['measuredlength']); // this should be input from the user
            // $('#serialno').val(response_array['serialno']);  //This should also be input from the user
            }           
            });
           }
           else{
           $('#heatno1').val('');
           $('#pipeno2').val('');
           $('#heatno2').val('');
           $('#jointno').val('');}
            }
  </script> 

 <!-- #4b -->
 <?php printf($message);?>
 <!-- #6.1 -->
 <form action="" method="post">
 <table width="800" cellpadding= "10" cellspacing="1" border="2">
 <tr align="center" valign="top">
 <td align="center" colspan="1" rowspan="1" bgcolor="#64b1ff">
 <h3>Input Field Tally Information</h3>
      Select Pipe Thickness:<select name="wthick" id="wthick">
 <!-- #7.1 -->
  <option value=""> --Select-- </option> 
  <option value="9.8">  9.8  </option>
  <option value="13.5"> 13.5 </option>
  <option value="15.9"> 15.9 </option>
  </Select>           
 Select Pipe No:<?php dropdown('pipeno', 1); ?>  Select Wall Thickness:<?php dropdown('wallthickness', 1); ?><br /><br /> 
 HeatNo1: <input type="text" name="heatno2" id="heatno1"> PipeNo2: <input type="text" name="pipeno2" id="pipeno1"> HeatNo2: <input type="text" name="heatno2" id="heatno2"><br /><br /> 
 Joint No: <input type="text" name="jointno"> Input measured Length: <input type="text" name="measuredlength"> Input Serial No: <input type="text" name="serialno"><br><br> 
 <!-- #8.1 -->
 <input type="Submit" name="submit_1" value="Submit">
 <!-- #9.1 -->
 </td></tr></table></form>
 <p></p>

 <!-- #6.2 -->
 <form action="" method="post">
 <table width="800" cellpadding= "10" cellspacing="1" border="2">
 <tr align="center" valign="top">
 <td align="center" colspan="1" rowspan="1" bgcolor="#ff9d9d">
 <h3>Input Field Bend Information</h3>
  Select Wall Thickness:<select name="wallthickness" id="wallthickness">
 <!-- #7.2 -->
     <option value=""> --Select-- </option> 
     <option value="9.8">  9.8  </option>
     <option value="13.5">13.5 </option>
     <option value="15.9"> 15.9 </option>
  </select>
 <!-- #10.1 -->           
 Select Pipe No:<?php dropdown('pipeno', 2); ?>  Select Wall Thickness:<?php dropdown('wallthickness', 2); ?><br /><br /> 
 HeatNo1: <input type="text" name="heatno1" id="heatno1_2"> PipeNo2: <input type="text" name="pipeno2" id="pipeno2_2"> HeatNo2: <input type="text" name="heatno2" id="heatno2_2"><br /><br /> 
 Joint No: <input type="text" name="jointno"> Input Measured Distance: <input type="text" name="measureddistance"><br><br> 
 Input Bend Angle: <input type="text" name="benddegree"> Input Bend Type: <input type="text" name="bendtype"><br><br>
 <!-- #8.2 -->
 <input type="Submit" name="submit_2" value="Submit">
 <!-- #9.2 -->
 </td></tr></table></form>
 <p></p>

 <!-- #6.3 -->
 <form action="" method="post">
 <table width="800" cellpadding= "10" cellspacing="1" border="2">
 <tr align="center" valign="top">
 <td align="center" colspan="1" rowspan="1" bgcolor="#66CC66">
 <h3>Input App. Tally Information</h3>
 <!-- #11 -->
      Select Wall Thickness:<select name="wallthickness1" id="wallthickness1">
 <!-- #7.3 -->
     <option value=""> --Select-- </option> 
     <option value="9.8">  9.8  </option>
     <option value="13.5"> 13.5 </option>
     <option value="15.9"> 15.9 </option>
  </select>
 <!-- #10.2 -->             
 Select Pipe No:<?php dropdown('pipeno', 3); ?>  Select Wall Thickness:<?php dropdown('wallthickness', 3); ?><br /><br />            
 Input Tally Type: <input type="text" name="type">   Input Serial No: <input type="text" name="serialno"><br><br>
 Input Reference ID: <input type="text" name="referenceid"><br><br>
 <!-- #8.3 -->
 <input type="Submit" name="submit_3" value="Submit">
 </td></tr></table>
 </form>
 </body>
 </html>

check1.php -

<?php
//Php Code to connect to postgresqldatabase
$PGHOST = "localhost:25376";
$PGDATABASE = "Pipeline";
$PGUSER = "postgres";
$PGPASSWORD = "Casa2009";
$PGPORT = 5432;
$db_handle = pg_connect("dbname=$PGDATABASE user=$PGUSER password=$PGPASSWORD");

// Code to pull data from the database and load onto the form  
$pipeno = pg_escape_string($_POST['pipeno']);
$query = "SELECT * FROM fieldtally1 WHERE pipeno = $pipeno ";
$result = pg_query($db_handle,$query); 
$row = pg_fetch_row($result);
$row_info = array('heatno1'=>$row[1],'pipeno2'=>$row[2],'heatno2'=>$row[3],'jointno'=>$row[4]);
$row_info = json_encode($row_info);
print_r($row_info); 
?>

以下是问题 -

1 - 将所有<?php ?>脚本移至页面顶部。这将:(1)清理代码,(2)能够同时处理所有数据库查询。

2 - 现在,在您从数据库获取下拉列表之前,您的更新fieldtally1的查询已经完成。

3 - 修复第二个问题after entering data into the input fields and click submit. it creates a new record in the database instead of populating the required columns in the database使用INSERT INTO ... VALUES ... ON DUPLICATE KEY UPDATE ...。如果pipeno已经在数据库中(因为它是Primary Key),它将UPDATE而不是INSERT

4 - 我建议保存您的errorsuccess消息(#4a)并将其回显到您的HTML顶部(#4b)。

5a - 您已从硬编码pipeno下拉列表更改为使用该功能的动态下拉列表。所以你错过了javascript - onChange=check(); 5b - 现在您正在创建pipeno&amp;动态onChange=check();,您必须更改check()函数以动态获取ID。

6 - $PHP_SELF无效。我认为您正在尝试使用$_SERVER['PHP_SELF'],但这很容易被黑,所以最好只使用action=""。 [6.1,6.2,6.3]

7 - 当您<select><option>使用相同的value=""时,但是每个人在发布时都需要有所不同才能获得价值。此外,大多数</option>拼写错误为</optio>。 [7.1,7.2,7.3]

8 - 如果您在同一页面上有3个表单,则每个表单必须具有不同的名称,否则您将无法确定单击了哪个提交按钮。 [8.1,8.2,8.3]

9 - 您的前两个表单缺少结束标记 - </td></tr></table></form>。 [9.1,9.2]

10 - 在你2&amp; 3个表单,您正在使用第一个表单中使用的id。这是无效的,因为每个id必须是唯一的。 [10.1,10.2]

11 - 第3个表单使用表单2中使用的id="wallthickness"。请参阅上文有关id唯一性的信息。

答案 1 :(得分:0)

如果要填充文本字段的数据是select选项的属性,我将使用jquery。拉出要使用的选定选项属性,然后可以使用jquery将其输出到文本框。它可以由选择菜单上的更改事件触发。例如..

$('#selectid').change(function() {
    var opt = $('#selectid option:selected');
    $('#text1id').val(opt.attr('attrfortext1'));
    $('#text2id').val(opt.attr('attrfortext2'));
    $('#text3id').val(opt.attr('attrfortext3'));
});

我认为使用Ajax访问另一个PHP文件来解析数据库并返回一个json编码数组,其中包含要填充文本字段的数据。根据您筛选的数据量,如果每个选项有多个属性,并且有100个选项,那么您的方法可能会很快变得难看。

克雷格