mysqli_stmt::bind_param

    mysqli_stmt_bind_param

    (PHP 5, PHP 7, PHP 8)

    mysqli_stmt::bind_param -- mysqli_stmt_bind_param — Binds variables to a prepared statement as parameters

    Açıklama

    Nesne yönelimli kullanım

    publicmysqli_stmt::bind_param(string$types, mixed&$var, mixed&...$vars): bool

    Yordamsal kullanım

    mysqli_stmt_bind_param(
        mysqli_stmt$statement,
        string$types,
        mixed&$var,
        mixed&...$vars
    ): bool

    Bind variables for the parameter markers in the SQL statement prepared by mysqli_prepare() or mysqli_stmt_prepare().

    Bilginize:

    If data size of a variable exceeds max. allowed packet size (max_allowed_packet), you have to specify b in types and use mysqli_stmt_send_long_data() to send the data in packets.

    Bilginize:

    Care must be taken when using mysqli_stmt_bind_param() in conjunction with call_user_func_array(). Note that mysqli_stmt_bind_param() requires parameters to be passed by reference, whereas call_user_func_array() can accept as a parameter a list of variables that can represent references or values.

    Bağımsız Değişkenler

    deyim

    Sadece yordamsal tarz: mysqli_stmt_init() işlevinden dönen bir mysqli_stmt nesnesi.

    types

    A string that contains one or more characters which specify the types for the corresponding bind variables:

    Type specification chars
    CharacterDescription
    icorresponding variable has type int
    dcorresponding variable has type float
    scorresponding variable has type string
    bcorresponding variable is a blob and will be sent in packets
    var
    vars

    The number of variables and length of string types must match the parameters in the statement.

    Dönen Değerler

    Başarı durumunda true, başarısızlık durumunda false döner.

    Hatalar/İstisnalar

    Eğer mysqli hata bildirimi etkinse (MYSQLI_REPORT_ERROR) ve istenen işlem başarısız olursa bir uyarı üretilir. Ek olarak, kip MYSQLI_REPORT_STRICT ise bunun yerine mysqli_sql_exception istisnası oluşur.

    Örnekler

    Örnek 1 mysqli_stmt::bind_param() example

    Nesne yönelimli kullanım

    <?php

    mysqli_report    (MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
    $mysqli = new mysqli('localhost', 'my_user', 'my_password', 'world');

    $stmt = $mysqli->prepare("INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
    $stmt->bind_param('sssd', $code, $language, $official, $percent);

    $code = 'DEU';
    $language = 'Bavarian';
    $official = "F";
    $percent = 11.2;

    $stmt->execute();

    printf("%d row inserted.\n", $stmt->affected_rows);


    $mysqli->query("DELETE FROM CountryLanguage WHERE Language='Bavarian'");
    printf("%d row deleted.\n", $mysqli->affected_rows);

    Yordamsal kullanım

    <?php

    mysqli_report    (MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
    $link = mysqli_connect('localhost', 'my_user', 'my_password', 'world');

    $stmt = mysqli_prepare($link, "INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
    mysqli_stmt_bind_param($stmt, 'sssd', $code, $language, $official, $percent);

    $code = 'DEU';
    $language = 'Bavarian';
    $official = "F";
    $percent = 11.2;

    mysqli_stmt_execute($stmt);

    printf("%d row inserted.\n", mysqli_stmt_affected_rows($stmt));


    mysqli_query($link, "DELETE FROM CountryLanguage WHERE Language='Bavarian'");
    printf("%d row deleted.\n", mysqli_affected_rows($link));

    Yukarıdaki örneklerin çıktısı:

    1 row inserted. 1 row deleted.

    Örnek 2 Using ... to provide arguments

    The ... operator can be used to provide variable-length argument list, e.g. in a WHERE IN clause.

    <?php

    mysqli_report    (MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
    $mysqli = new mysqli('localhost', 'my_user', 'my_password', 'world');

    $stmt = $mysqli->prepare("SELECT Language FROM CountryLanguage WHERE CountryCode IN (?, ?)");

    $stmt->bind_param('ss', ...['DEU', 'POL']);
    $stmt->execute();
    $stmt->store_result();

    printf("%d rows found.\n", $stmt->num_rows());

    Yukarıdaki örneklerin çıktısı:

    10 rows found.

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