Question

首先我想说我是postgresql和php的初学者..我的公司告诉我创建一个他们可以在本地服务器上查看和编辑的数据库..所以我在postgresql中创建了数据库..创建了一个查看数据库的页面：

<html>
<head>
<title>Ongoing projects</title>
</head>
<body bgcolor="666657">
<?php
//database access information
require_once("DB.php");
$host = "localhost";
$user = "admin";
$pass = "";
$db = "Project_list";
$port = "5432";

//open a connection to the database server
$connection = pg_connect("host=$host dbname=$db user=$user password=$pass port=$port");
if (!$connection)
{
die("Could not open connection to database server");
}

?>


<?php


$query = 'select * from ongoing';
$result = pg_query($query); $i = 0;


echo '<html><table bgcolor="666657" width="10" height="30" border="0" cellpadding="0" cellspacing="0"><td align="center"> <h1><font color = "#ffb200"> Ongoing projects</h1>';

 echo '<html><body><table border= 2 BORDERCOLOR="000000" cellpadding="1" cellspacing="0"> <tr >';


while ($i < pg_num_fields($result)) {
$fieldName =pg_field_name($result, $i);
echo '<b>'.'<td width="2" bgcolor="666657" align="center">'.'<font color = "#ffb200">'. '</b>'.'<b>'. $fieldName . '</b>'. '</td>';
$i = $i + 1; }
 echo("<td><align= center><font color = #ffb200><b>Action</td>");

echo '</tr>' ;
$i = 0;

while ($row = pg_fetch_row($result)) {
echo '<tr align="center" width="1">';
$count = count($row);
$y = 0;
while ($y < $count) {
$c_row = current($row);
echo '<td>' .'<font color = "#ffb200">'. $c_row . '</td>';

next($row);

$y = $y + 1;
}
echo("<td><align= center><a href='editongoing.php?ProjectID=".$row[0]."'>Edit</a></td>");
echo '</tr>';
$i = $i + 1;
}


pg_free_result($result);

echo '</table></body></html>';

?>
<h3>
<a href="projects.php"</a>Back to projects page</a>

</h3>
<SCRIPT LANGUAGE="JavaScript">
if (window.print) {

document.write('<form> '
+ '<input type=button name=print value="Click" '
+ 'onClick="javascript:window.print()"> To Print!</form>');
}
// End -->
</script>

当您单击编辑按钮时，您将转到此页面，您可以在其中编辑所需的原始文件，这是（编辑）代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html>
<head>
<title>Edit Ongoing projects</title>
</head>
<body bgcolor="666657">

<?php
// attempt a connection
$connection = pg_connect("host=localhost dbname=Project_list user=admin password=");
if (!$connection) {
die("Error in connection: " . pg_last_error());
}
if ($_REQUEST['ProjectID']!=''){

$QueryStr = "Select * from ongoing where project_no='".$_REQUEST['ProjectID']."'";
$result = pg_query($connection, $QueryStr);
if (!$result) {
die("Error in SQL query: " . pg_last_error());
}
$row = pg_fetch_row($result);

print_r($row);

}
if ($_POST['submit']) {


// escape strings in input data
$project_no = pg_escape_string($_POST['project_no']);
$title = pg_escape_string($_POST['title']);
$duration = pg_escape_string($_POST['duration']);
$manager = pg_escape_string($_POST['manager']);
$country = pg_escape_string($_POST['country']);
$total_fee = pg_escape_string($_POST['totalfee']);
$performed = pg_escape_string($_POST['performed']);
$remaining = pg_escape_string($_POST['remaining']);
$gross_profit = pg_escape_string($_POST['gross_profit']);
$gp = pg_escape_string($_POST['gp']);
$performance_year = pg_escape_string($_POST['performance_year']);
$gp_year = pg_escape_string($_POST['gp_year']);


// execute query
$sql = "INSERT INTO ongoing (project_no, project_title, duration, manager, country, total_fee,
performed, remaining, gross_profit, gp, performance_year, gp_year)
VALUES('$project_no', '$title', '$duration', '$manager', '$country','$total_fee','$performed','$remaining',
'$gross_profit','$gp', '$performance_year','$gp_year')";
$result = pg_query($connection, $sql);
f (!$result) {
die("Error in SQL query: " . pg_last_error());
}

echo "Data successfully inserted!";


// free memory
pg_free_result($result);

// close connection
pg_close($connection);
}
?>

<form action= "<?php echo $_SERVER['PHP_SELF']; ?>" method="post"><b><font color = "#ffb200">
Project No.: <br>  <input id="project_no" type="text" name="project_no" size="20" value=<?= $row[0] ?>>
<p>
Project Title: <br> <input id="title" type="text" name="title" value='<?= $row[1] ?>'>
<p>
Duration: <br> <input ID="duration" type="text" name="duration" value=<?= $row[2] ?>>
<p>
Project Manager: <br> <input ID="manager" type="text" name="manager" value=<?= $row[3] ?>>
<p>
Country: <br> <input ID="country" type="text" name="country"  value=<?= $row[4] ?>>
 <p>
Total Fee: <br> <input ID="totalfee" type="text" name="total_fee" value=<?= $row[5] ?>>
 <p>
Already performed: <br> <input ID="performed" type="text" name="performed" value=<?= $row[6] ?>>
 <p>
Remaining performance: <br> <input ID="remaining" type="text" name="remaining" value=<?= $row[7] ?>>
 <p>
Gross Profit: <br> <input ID="gross_profit" type="text" name="gross_profit" value='<?= $row[8] ?>'>
<p>
GP%: <br> <input ID="gp" type="text" name="gp" value=<?= $row[9] ?>>
<p>
Performance actual year: <br> <input ID="performance_year" type="text" name="performance_year" value=<?= $row[10] ?>>
<p>
GP actual year: <br> <input ID="gp_year" type="text" name="gp_year" value=<?= $row[11] ?>>
<p>

<input type="submit" name="submit" value="Sumbit my table" size="30">

<P>
<a href="ongoing.php"</a>View ongoing projects</a>
<a href="editproject.php"</a>Back to editing menu</a>
</form>

</body>
</html>

我的问题是，当我编辑数据并点击提交我的表时，会插入一个新原始..但我希望它更新而不插入... help plz

Answer 1

您需要选择要更新的记录（ID号），然后您的查询将显示为

$sql = "UPDATE ongoing SET field1='value', field2='value' ... WHERE id = 'id of project you want to edit'";

如何使用php更新postgresql行？

1 个答案: