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mysqli_errno (PHP 5) mysqli_errno (no version information, might be only in CVS) mysqli->errno -- Returns the error code for the most recent function call DescriptionProcedural style: int mysqli_errno ( mysqli link ) Object oriented style (property): class mysqli { int errno }
The mysqli_errno() function will return the last error code for
the most recent MySQLi 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.
注:
Client error message numbers are listed in the MySQL errmsg.h header file,
server error message numbers are listed in mysqld_error.h.
In the MySQL source distribution you can find a complete list of error messages and error numbers
in the file Docs/mysqld_error.txt.
返回值
An error code value for the last call, if it failed. zero means no error occurred.
例例子 1. Object oriented style |
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if (!$mysqli->query("SET a=1")) {
printf("Errorcode: %d\n", $mysqli->errno);
}
$mysqli->close();
?>
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例子 2. Procedural style |
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if (!mysqli_query($link, "SET a=1")) {
printf("Errorcode: %d\n", mysqli_errno($link));
}
mysqli_close($link);
?>
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上例将输出：
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mysqli_enable_rpl_parse