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(PHP 5)
mysqli_stmt::$sqlstate -- mysqli_stmt_sqlstate — Returns SQLSTATE error from previous statement operation
面向对象风格
过程化风格
$stmt
)Returns a string containing the SQLSTATE error code for the most recently invoked prepared statement function that can succeed or fail. 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.
stmt
仅以过程化样式:由 mysqli_stmt_init() 返回的 statement 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.
Note:
Note that not all MySQL errors are yet mapped to SQLSTATE's. The value HY000 (general error) is used for unmapped errors.
Example #1 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();
}
$mysqli -> query ( "CREATE TABLE myCountry LIKE Country" );
$mysqli -> query ( "INSERT INTO myCountry SELECT * FROM Country" );
$query = "SELECT Name, Code FROM myCountry ORDER BY Name" ;
if ( $stmt = $mysqli -> prepare ( $query )) {
$mysqli -> query ( "DROP TABLE myCountry" );
$stmt -> execute ();
printf ( "Error: %s.\n" , $stmt -> sqlstate );
$stmt -> close ();
}
$mysqli -> close ();
?>
Example #2 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();
}
mysqli_query ( $link , "CREATE TABLE myCountry LIKE Country" );
mysqli_query ( $link , "INSERT INTO myCountry SELECT * FROM Country" );
$query = "SELECT Name, Code FROM myCountry ORDER BY Name" ;
if ( $stmt = mysqli_prepare ( $link , $query )) {
mysqli_query ( $link , "DROP TABLE myCountry" );
mysqli_stmt_execute ( $stmt );
printf ( "Error: %s.\n" , mysqli_stmt_sqlstate ( $stmt ));
mysqli_stmt_close ( $stmt );
}
mysqli_close ( $link );
?>
以上例程会输出:
Error: 42S02.