(PECL maxdb >= 1.0)
maxdb_error -- maxdb::error — Returns a string description of the last error
过程化风格
$link
) : string面向对象风格
The maxdb_error() function is identical to the corresponding
maxdb_errno() function in every way, except instead of returning
an integer error code the maxdb_error() function will return
a string representation of the last error to occur for the database connection
represented by the link parameter. If no error has occurred,
this function will return an empty string.
A string that describes the error. An empty string if no error occurred.
Example #1 面向对象风格
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
if (!$maxdb->query("SELECT xxx FROM hotel.city")) {
printf("Errormessage: %s\n", $maxdb->error);
}
/* close connection */
$maxdb->close();
?>
Example #2 过程化风格
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
if (!maxdb_query($link, "SELECT xxx FROM hotel.city")) {
printf("Errormessgae: %s\n", maxdb_error($link));
}
/* close connection */
maxdb_close($link);
?>
以上例程的输出类似于：
PHP Warning: maxdb_query(): -4005 POS(8) Unknown column name:XXX [42000] Errormessgae: POS(8) Unknown column name:XXX