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mysqli_stmt::$errno

mysqli_stmt_errno

(PHP 5)

mysqli_stmt::$errno -- mysqli_stmt_errnoReturns the error code for the most recent statement call

说明

面向对象风格

int $mysqli_stmt->errno ;

过程化风格

int mysqli_stmt_errno ( mysqli_stmt $stmt )

Returns the error code for the most recently invoked statement function that can succeed or fail.

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.

参数

stmt

仅以过程化样式:由 mysqli_stmt_init() 返回的 statement 标识。

返回值

An error code value. Zero means no error occurred.

范例

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: %d.\n" $stmt -> errno );

    

    
$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: %d.\n" mysqli_stmt_errno ( $stmt ));

    

    
mysqli_stmt_close ( $stmt );
}


mysqli_close ( $link );
?>

以上例程会输出:

Error: 1146.

参见

  • mysqli_stmt_error() - Returns a string description for last statement error
  • mysqli_stmt_sqlstate() - Returns SQLSTATE error from previous statement operation
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