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MaxDB
PHP Manual

maxdb_errno

maxdb->errno

(PECL maxdb:1.0-7.6.00.38)

maxdb->errno — Returns the error code for the most recent function call

说明

Procedural style:

int maxdb_errno ( resource $link )

Object oriented style (property):

maxdb
int$errno;

The maxdb_errno() function will return the last error code for the most recent MaxDB function call that can succeed or fail with respect to the database link defined by the link parameter. If no errors have occured, this function will return zero.

返回值

An error code value for the last call, if it failed. zero means no error occurred.

范例

Example#1 Object oriented style

<?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("Errorcode: %d\n", $maxdb->errno);
}

/* close connection */
$maxdb->close();
?>

Example#2 Procedural style

<?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($link, "SELECT xxx FROM hotel.city")) {
   printf("Errorcode: %d\n", maxdb_errno($link));
}

/* close connection */
maxdb_close($link);
?>

The above examples would produce the following output: 

PHP Warning:  maxdb_query(): -4005 POS(8) Unknown column name:XXX [42000] <...>
Errorcode: -4005

参见

MaxDB
PHP Manual