MySQL按ID生成PHP

Question

How can i display something out of my databse by an ID number?

I already can get the data out of the database by searching the row 'content' but i want to get it by an ID number.

I have three rows in my database table: ID, pagename and content.

Here is the code that i already have for getting the data:

<?php
$con=mysqli_connect("localhost","jordyyd108_mario","testdb","jordyyd108_mario");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

$result = mysqli_query($con,"SELECT * FROM pages");


while($row = mysqli_fetch_array($result)) {
echo $row['content'] ;
}


mysqli_close($con);
?>    

Thanks!

Answer 1

use WHERE clause and pass your id try

mysqli_query($con,"SELECT * FROM pages WHERE ID = '2'");

or pass a variable

mysqli_query($con,"SELECT * FROM pages WHERE ID = '$id'");

Answer 2

您可以使用WHERE：-

$result = mysqli_query($con,"SELECT * FROM pages where id = 1");