maxdb_errno

maxdb::errno

(PECL maxdb >= 1.0)

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

说明

过程化风格

maxdb_errno ( resource $link ) : int

面向对象风格

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

/* 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($link, "SELECT xxx FROM hotel.city")) {
   printf("Errorcode: %d\n", maxdb_errno($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] <...>
Errorcode: -4005

参见

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