mysqli::$error

    mysqli_error

    (PHP 5, PHP 7, PHP 8)

    mysqli::$error -- mysqli_error — Returns a string description of the last error

    Description

    Object-oriented style

    string$mysqli->error;

    Procedural style

    mysqli_error(mysqli$mysql): string

    Returns the last error message for the most recent MySQLi function call that can succeed or fail.

    Parameters

    mysql

    Procedural style only: A mysqli object returned by mysqli_connect() or mysqli_init()

    Return Values

    A string that describes the error. An empty string if no error occurred.

    Examples

    Example #1 $mysqli->error example

    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("Error message: %s\n", $mysqli->error);
    }


    $mysqli->close();
    ?>

    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($link, "SET a=1")) {
    printf("Error message: %s\n", mysqli_error($link));
    }


    mysqli_close($link);
    ?>

    The above examples will output:

    Error message: Unknown system variable 'a'

    See Also

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