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Dokumen ini menggunakan Manual laman web PHP Cina Lepaskan
(PHP 5)
mysqli::$sqlstate -- mysqli_sqlstate — Returns the SQLSTATE error from previous MySQL operation
面向对象风格
过程化风格
$link
)Returns a string containing the SQLSTATE error code for the last error. The error code consists of five characters. '00000' means no error. The values are specified by ANSI SQL and ODBC. For a list of possible values, see » http://dev.mysql.com/doc/mysql/en/error-handling.html.
Note:
Note that not all MySQL errors are yet mapped to SQLSTATE's. The value HY000 (general error) is used for unmapped errors.
link
仅以过程化样式:由 mysqli_connect() 或 mysqli_init() 返回的链接标识。
Returns a string containing the SQLSTATE error code for the last error. The error code consists of five characters. '00000' means no error.
Example #1 $mysqli->sqlstate example
面向对象风格
<?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 ( "CREATE TABLE City (ID INT, Name VARCHAR(30))" )) {
printf ( "Error - SQLSTATE %s.\n" , $mysqli -> sqlstate );
}
$mysqli -> close ();
?>
过程化风格
<?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 , "CREATE TABLE City (ID INT, Name VARCHAR(30))" )) {
printf ( "Error - SQLSTATE %s.\n" , mysqli_sqlstate ( $link ));
}
mysqli_close ( $link );
?>
以上例程会输出:
Error - SQLSTATE 42S01.