406 | Chapter 13:
Web Database Applications
// ... and printout each of the columns foreach($row as $data)
print "\t | | {$data} | \n";
// Finish the row print "\n";
}
?>
Step
|
Variable Value
|
|---|
// Set initial value for the variable
$Variable=110;
// Display the initial variable value.
echo "
Initial value |
$Variable |
";
// Pass the variable by value to the AddNineteen_value() function.
AddNineteen_value($Variable);
// Display the variable value after passing it by value.
echo "
After passing by value |
$Variable |
";
// Pass the variable by reference to the AddNineteen_reference() function.
AddNineteen_reference($Variable);
// Display the variable value after passing it by reference.
echo "
After passing by reference |
$Variable |
";
// Function to add 19 to the received variable the function receives the variable value.
function AddNineteen_value($MyVariable)
{
$MyVariable+=19;
Language Basics | 425
}
// Function to add 19 to the received variable the function receives a reference to the variable (note the ampersand before the variable name).
function AddNineteen_reference(&$MyVariable)
{
$MyVariable+=19;
}
?>
Artists
artist_id |
artist_name |
|---|
// Connect to the MySQL server if (!($connection = @ mysql_connect("localhost", "root",
"the_mysql_root_password")))
die("Cannot connect");
if (!(mysql_select_db("music", $connection)))
die("Couldn't select music database Run the query on the connection if (result = @ mysql_query("SELECT * FROM artist",
$connection)))
die("Couldn't run query Until there are no rows in the result set, fetch a row into the row array and while (row = @ mysql_fetch_array($result, MYSQL_ASSOC))
{
// Start a table row print "\n";
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