我是php的新手，我必须设计一个名为fixtures.php的页面。在此页面中，列表，编辑和删除使用if / else语句在同一页面上进行。
这是我到目前为止的fixtures.php页面。任何帮助表示赞赏。
<?php
include ('connect.php');
$user_name="root";
$password="";
$database="team_management_db";
$server="127.0.0.1";
$db_handle = mysql_connect($server, $user_name, $password);
$db_found = mysql_select_db($database, $db_handle);
if($db_found){
echo "Database found";
}
$fixture_id=$_GET['fixture_id'];
$submit=$_POST['update'];
$update=$_GET['fixture_id'];
$delete=$_GET['fixture_id'];
$SQL = "SELECT * FROM fixtures";
$result = mysql_query($SQL);
echo "<table border='1'><tr bgcolor='#cccccc'><td>Opponents</td><td>Date</td><td>Venue</td><td>Action</td>";
while($row = mysql_fetch_assoc($result)) {
$fixture_id=$row['fixture_id'];
$opponents=$row['opponents'];
$date=$row['date'];
$venue=$row['venue'];
echo "<tr><td>$opponents</td><td>$date</td><td>$venue</td><td><a href=fixtures.php?action=update&fixture_id=. $update .>Edit</a>
</td><td><a href=fixtures.php?action=delete&fixture_id= . $delete . >Delete</a></td></tr>";
}
echo "</table>";
if($update)
{
?>
<form action=$_PHP_SELF method=POST>
<table border='1'><tr bgcolor='#cccccc'><td>Opponents</td><td>Date</td><td>Venue</td></tr>
<tr><td><input type='hidden' name='fixture_id' />
<input type='text' name='opponents' />
<input type='text' name='date' />
<input type='text' name='venue' />
<input type='submit' name='update' value='update' />
</td>
</tr>
</form>
<?php
}
?>
<?php
if($delete)
{
echo "Are you sure you want to delete $fixture?<a href=fixtures.php?delete=absolutely&fixture_id=$fixture_id>Yes</a>
<a href=fictures.php>No</a>";
if($delete=='absolutely')
{
$sql = "DELETE FROM fixtures WHERE fixture_id = $fixture_id";
}
}
elseif($submit=='update')
{
$fixture_id=$_POST['fixture_id'];
$opponents=$_POST['opponents'];
$date=$_POST['date'];
$venue=$_POST['venue'];
$sql = "UPDATE FROM fixtures SET opponents =$opponents, date =$date, venue =$venue
WHERE fixture_id = $fixture_id";
mysql_select_db('team_management_db');
$retval = mysql_query($sql, $db_handle);
if(!$retval)
{
die('Could not update data: ' .mysql_erroe());
}
echo "Updated data successfully\n";
mysql_close($db_handle);
}
else
{
echo "<table border='1'><tr bgcolor='#cccccc'><td>Opponents</td><td>Date</td><td>Venue</td></tr>";
while($row = mysql_fetch_assoc($result)) {
$fixture_id=$row['fixture_id'];
$opponents=$row['opponents'];
$date=$row['date'];
$venue=$row['venue'];
echo "<tr><td>$opponents</td><td>$date</td><td>$venue</td></tr>";
}
echo "</table>";
}
?>
</body>
</html>
答案 0 :(得分：2)
改变 -
<form action=$_PHP_SELF method=POST>
要
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST">
修改
甚至这也有效（但为了正确的可读性，请使用1st）
<form action=<?php echo $_SERVER['PHP_SELF']; ?> method=POST>
还有一件事要补充 -
不要使用mysql_尝试抓住mysqli_或PDO进行数据库处理。
我相信你应该阅读PHP手册以获取PHP HTML mix的概念
开始学习的好地方http://www.php.net/manual/en/ -
答案 1 :(得分：0)
在一个脚本中列出，更新和删除：使用$do和$id控制脚本流
我会用......
$db定义为包含文件中的PDO 'opponents'以保持代码简短$_POST 以确保上述安全我们走了：
<?php
// define $do...
if (isset($_POST['submit'])) $do = $_POST['submit'];
elseif (isset($_POST['do'])) $do = $_POST['do'];
else $do = "list";
// possible states of $do...
// $do == "update" --> display update-form
// $do == "delete" --> display delete-form
// $do == "perform_upd" --> validate and perform update
// $do == "perform_del" --> perform delete
// $do == "list" --> display list
// define $id
if (isset($_POST['id'])) $id = $_POST['id']; else $id = -1;
switch ($do) {
case "perform_upd":
// validate user-input...
if (strlen(trim($_POST['opponents'])) == 0)
$error[] = "Please fill in opponents!";
// validate other fields, too...
if (isset($error)) $do = "update"; // validation found errors --> back to update-form!
else {
$sql = "UPDATE fixtures SET opponents=:opp WHERE id=:id LIMIT 1";
$bind = array(
':opp' => $_POST['opponents'];
':id' => $id);
}
break;
case "perform_del":
$sql = "DELETE FROM fixtures WHERE id=:id LIMIT 1";
$bind = array(':id' => $id);
break;
default: // $do = list, update or delete
$sql = "SELECT * FROM fixtures";
$bind = array();
if ($do == 'update' || $do == 'delete') {
$sql .= " WHERE id=:id";
$bind = array(':id' => $id);
} // if
} // switch
// prepare and execute database-operation
$stmt = $db->prepare($sql);
$stmt->execute($bind);
if (in_array($do, array('list','update','delete')))
$fixtures = $stmt->fetchAll(PDO::FETCH_ASSOC); // read data into array $fixtures
else {
header("Location: yoururl"); // set yoururl to your script --> redirect and show list
exit();
}
<body> ... 中
<?php
switch ($do): // same game again...
case "list":
// display the list...
$h ='';
foreach ($fixtures as $f) {
$h .= "<form method=\"POST\”>$f[opponents], $f[date], $f[venue]";
$h .= "<input type=\"submit\" name=\"submit\" value=\"update\" />";
$h .= "<input type=\"submit\" name=\"submit\" value=\"delete\" />";
$h .= "<input type=\"hidden\" name=\"id\" value=\"$f[id]\" />";
$h .= "</form><br />";
}
?>
<h1>List</h1>
<?php=$h?>
<? php
break; // list
case "update":
// display update form
?>
<form method="POST">
<!-- if validation found errors, they are displayed here -->
<?php=(isset($error)?'There were errors: ' . implode(", ", $error):'')?>
<input type="text" name="opponents" value="<?php=$fixtures[0]['opponents']?>" />
<input type="submit" name="update" value="update" />
<input type="hidden" name="do" value="perform_upd" />
<input type="hidden" name="id" value="<?php=$id?>" />
</form>
<?php
break; // update
case "delete":
// display delete form
?>
<form method="POST">
Do you really want to delete <?php=$fixtures[0]['opponents']?>?
<input type="submit" name="delete" value="delete" />
<input type="hidden" name="do" value="perform_del" />
<input type="hidden" name="id" value="<?php=$id?>" />
</form>
<?php
break; // delete
} // switch
?>