mysqli_stmt::get_result

    mysqli_stmt_get_result

    (PHP 5 >= 5.3.0, PHP 7, PHP 8)

    mysqli_stmt::get_result -- mysqli_stmt_get_result — Gets a result set from a prepared statement as a mysqli_result object

    说明

    面向对象风格

    publicmysqli_stmt::get_result(): mysqli_result|false

    过程化风格

    mysqli_stmt_get_result(mysqli_stmt$statement): mysqli_result|false

    Retrieves a result set from a prepared statement as a mysqli_result object. The data will be fetched from the MySQL server to PHP. This method should be called only for queries which produce a result set.

    注意:

    仅可用于 mysqlnd。

    注意:

    This function cannot be used together with mysqli_stmt_store_result(). Both of these functions retrieve the full result set from the MySQL server.

    参数

    statement

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

    返回值

    Returns false on failure. For successful queries which produce a result set, such as SELECT, SHOW, DESCRIBE or EXPLAIN, mysqli_stmt_get_result() will return a mysqli_result object. For other successful queries, mysqli_stmt_get_result() will return false. The mysqli_stmt_errno() function can be used to distinguish between the two reasons for false; due to a bug, prior to PHP 7.4.13, mysqli_errno() had to be used for this purpose.

    错误／异常

    If mysqli error reporting is enabled (MYSQLI_REPORT_ERROR) and the requested operation fails, a warning is generated. If, in addition, the mode is set to MYSQLI_REPORT_STRICT, a mysqli_sql_exception is thrown instead.

    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");

    $query = "SELECT Name, Population, Continent FROM Country WHERE Continent=? ORDER BY Name LIMIT 1";

    $stmt = $mysqli->prepare($query);
    $stmt->bind_param("s", $continent);

    $continentList = array('Europe', 'Africa', 'Asia', 'North America');

    foreach (    $continentList as $continent) {
    $stmt->execute();
    $result = $stmt->get_result();
    while (    $row = $result->fetch_array(MYSQLI_NUM)) {
    foreach (    $row as $r) {
    print     "$r ";
    }
    print     "\n";
    }
    }

    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");

    $query = "SELECT Name, Population, Continent FROM Country WHERE Continent=? ORDER BY Name LIMIT 1";

    $stmt = mysqli_prepare($link, $query);
    mysqli_stmt_bind_param($stmt, "s", $continent);

    $continentList= array('Europe', 'Africa', 'Asia', 'North America');

    foreach (    $continentList as $continent) {
    mysqli_stmt_execute($stmt);
    $result = mysqli_stmt_get_result($stmt);
    while (    $row = mysqli_fetch_array($result, MYSQLI_NUM)) {
    foreach (    $row as $r) {
    print     "$r ";
    }
    print     "\n";
    }
    }

    以上示例的输出类似于：

    Albania 3401200 Europe Algeria 31471000 Africa Afghanistan 22720000 Asia Anguilla 8000 North America

    参见

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