我有以下代码将我的 phpmyadmin 数据库链接到我的 PHP 脚本。该代码采用了一张包含 50 名 NFL 球员及其上赛季统计数据的表格。现在，我希望能够对其进行编码，以便我可以通过下拉框或类似的某种下拉框/列表选择一个播放器，然后在选择并再次显示表格时，不会列出该播放器。但是，我被卡住了，不知道该怎么做。至少有人可以帮助我了解基础知识以及为此我需要什么吗？
<!DOCTYPE html>
<html>
<head>
<title>PHP Project</title>
<style>
table,th,td {
border: 1px solid navy;
}
</style>
</head>
<body>
<?php
$db_hostname='localhost';
$db_username='root';
$db_password='';
$db_database='Project';
$connection = new mysqli( $db_hostname,
$db_username,
$db_password,
$db_database);
if ($connection->connect_error) {
echo "Sorry";
} else {
echo "Connected!<br><br>";
$sql = "SELECT * FROM NFL2014Receiving";
$result = $connection->query($sql);
if (!$result) die ($connection->error);
$n = $result->num_rows;
for ($i=1; $i<=$n; $i++) {
$row = $result->fetch_array(MYSQLI_ASSOC);
echo "<table>
<tr><th>ID</th><th>Player</th><th>Team</th>
<th>Position</th><th>Receptions</th>
<th>Receiving Yards</th><th>Avg Yds/Catch</th>
<th>Avg Yds/Game</th><th>Touchdowns</th></tr>";
echo "<tr><td width=20>" . $row['iD'] . "</td><td width=150>" . $row['Player'] . "</td><td width=40>" .
$row['Team'] . "</td><td width=30>" . $row['Pos'] . "</td><td width=30>" .
$row['Rec'] . "</td><td width=40>" . $row['Yds'] . "</td><td width=30>" .
$row['Avg'] . "</td><td width=40>" . $row['Yds/G'] . "</td><td width=20>" .
$row['TD'] . "</td></tr>";
}
echo "</table>";
}
?>
</body>
</html>
最佳答案
你可以这样做:
<?php
$db_hostname='localhost';
$db_username='root';
$db_password='';
$db_database='Project';
$connection = new mysqli( $db_hostname,
$db_username,
$db_password,
$db_database);
if ($connection->connect_error) {
echo "Sorry";
} else {
echo "Connected!<br><br>";
$sql = "SELECT * FROM NFL2014Receiving";
$result = $connection->query($sql);
if (!$result) die ($connection->error);
$n = $result->num_rows;
$nfl = array();
echo "<table>
<tr><th>ID</th><th>Player</th><th>Team</th>
<th>Position</th><th>Receptions</th>
<th>Receiving Yards</th><th>Avg Yds/Catch</th>
<th>Avg Yds/Game</th><th>Touchdowns</th></tr>";
for ($i=1; $i<=$n; $i++) {
$row = $result->fetch_array(MYSQLI_ASSOC);
$nfl[$row['iD']] = $row['Player'];
if(!isset($_POST['hide']) || $_POST['hide'] != $row['iD']){
echo "<tr><td width=20>" . $row['iD'] . "</td><td width=150>" . $row['Player'] . "</td><td width=40>" .
$row['Team'] . "</td><td width=30>" . $row['Pos'] . "</td><td width=30>" .
$row['Rec'] . "</td><td width=40>" . $row['Yds'] . "</td><td width=30>" .
$row['Avg'] . "</td><td width=40>" . $row['Yds/G'] . "</td><td width=20>" .
$row['TD'] . "</td></tr>";
}
}
echo "</table>";
echo "<form method='post' action=''><select name='hide'>";
foreach($nfl as $key=>$value){
echo "<option value='".$key."'>".$value."</option>";
}
echo "<input type='submit' value='Submit'>";
echo "</select></form>";
}
?>
试试吧，如果它对你有用，请告诉我:-)
关于php - MySQL/PHP编码程序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29736595/