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PHP MySQL 使用 WHERE 子句
demo_db_select_where_oo_table
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<!DOCTYPE html> <html> <head> <style> table, th, td { border: 1px solid black; } </style> </head> <body> <?php $servername = "localhost"; $username = "username"; $password = "password"; $dbname = "myDB"; // Create connection $conn = new mysqli($servername, $username, $password, $dbname); // Check connection if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error); } $sql = "SELECT id, firstname, lastname FROM MyGuests WHERE lastname='Doe'"; $result = $conn->query($sql); if ($result->num_rows > 0) { echo "<table><tr><th>ID</th><th>Name</th></tr>"; // output data of each row while($row = $result->fetch_assoc()) { echo "<tr><td>" . $row["id"]. "</td><td>" . $row["firstname"]. " " . $row["lastname"]. "</td></tr>"; } echo "</table>"; } else { echo "0 results"; } $conn->close(); ?> </body> </html>
ID
Name
1
John Doe