Oracle 5.0 Reference Manual page 2391

Example 20.119.
Object oriented style
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if ($mysqli->connect_errno) {
printf("Connect failed: %s\n", $mysqli->connect_error);
exit();
}
if (!$mysqli->query("SET a=1")) {
printf("Errormessage: %s\n", $mysqli->error);
}
/* close connection */
$mysqli->close();
?>
Procedural style
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if (!mysqli_query($link, "SET a=1")) {
printf("Errormessage: %s\n", mysqli_error($link));
}
/* close connection */
mysqli_close($link);
?>
The above examples will output:
Errormessage: Unknown system variable 'a'
See Also
mysqli_connect_errno
mysqli_connect_error
mysqli_errno
mysqli_sqlstate
20.7.3.9.17. mysqli::$field_count,
Copyright 1997-2012 the PHP Documentation Group. [2230]
•
mysqli::$field_count
mysqli_field_count
Returns the number of columns for the most recent query
MySQL Improved Extension (Mysqli)
example
$mysqli->error
mysqli_field_count
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