我创建了一个 HTML 表单，其中包含一个来自 postgresql 数据库的项目的下拉列表，我希望表单中的一些字段在从下拉菜单中选择项目时自动从数据库中填充。我在表单上还有一些其他字段需要用户填写，然后再按下提交按钮将整个数据推送回数据库。
目前我的脚本无法连接到数据库或填充表单上的下拉列表，也无法自动填充其他指定的表单字段（下拉列表中项目的属性也存储在数据库中）我还遇到的第二个问题是，在输入字段中输入数据并单击提交后。它在数据库中创建一条新记录，而不是在数据库中填充所需的列。有人可以看看我的脚本并帮助我。
这是使用下拉菜单创建数据输入表单的脚本
<?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>
将数据加载到表单字段并从数据库中推回数据的 PHP 脚本 - 文件名 = 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);
?>
当我在有或没有数据的情况下点击提交按钮时出现的错误是这样的
注意：未定义变量：第 27 行 C:\Users\iegbulefu\Documents\My Web Sites\Personal Site1\autopopulate.php 中的备注
警告：pg_query()：查询失败：错误：“GGFF”第 1 行或附近的语法错误：...no2=67677,Djointno=8,measuredlength=80,serialno=99GGFF,remar...^ 在 C:\ Users\iegbulefu\Documents\My Web Sites\Personal Site1\autopopulate.php 在第 30 行