mysqli_stmt::bind_result

    mysqli_stmt_bind_result

    (PHP 5, PHP 7, PHP 8)

    mysqli_stmt::bind_result -- mysqli_stmt_bind_result — Binds variables to a prepared statement for result storage

    说明

    面向对象风格

    publicmysqli_stmt::bind_result(mixed&$var, mixed&...$vars): bool

    过程化风格

    mysqli_stmt_bind_result(mysqli_stmt$statement, mixed&$var, mixed&...$vars): bool

    Binds columns in the result set to variables.

    When mysqli_stmt_fetch() is called to fetch data, the MySQL client/server protocol places the data for the bound columns into the specified variables var/vars.

    A column can be bound or rebound at any time, even after a result set has been partially retrieved. The new binding takes effect the next time mysqli_stmt_fetch() is called.

    注意:

    All columns must be bound after mysqli_stmt_execute() and prior to calling mysqli_stmt_fetch().

    注意:

    Depending on column types bound variables can silently change to the corresponding PHP type.

    小技巧

    This function is useful for simple results. To retrieve iterable result set, or fetch each row as an array or object, use mysqli_stmt_get_result().

    参数

    statement

    仅以过程化样式：由 mysqli_stmt_init() 返回的 mysqli_stmt 对象。

    var

    The first variable to be bound.

    vars

    Further variables to be bound.

    返回值

    成功时返回 true， 或者在失败时返回 false。

    示例

    示例 #1 面向对象风格

    <?php

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


    $stmt = $mysqli->prepare("SELECT Code, Name FROM Country ORDER BY Name LIMIT 5");
    $stmt->execute();


    $stmt->bind_result($col1, $col2);


    while ($stmt->fetch()) {
    printf("%s %s\n", $col1, $col2);
    }

    示例 #2 过程化风格

    <?php

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


    $stmt = mysqli_prepare($link, "SELECT Code, Name FROM Country ORDER BY Name LIMIT 5");
    mysqli_stmt_execute($stmt);


    mysqli_stmt_bind_result($stmt, $col1, $col2);


    while (mysqli_stmt_fetch($stmt)) {
    printf("%s %s\n", $col1, $col2);
    }

    以上示例的输出类似于：

    AFG Afghanistan ALB Albania DZA Algeria ASM American Samoa AND Andorra

    参见

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