問(wèn)題描述

我使用以下代碼從表中刪除條目我想要做的是檢查是否從表中刪除了任何值.如果刪除了一個(gè)值，腳本應(yīng)該打印成功否則為假.這就是我已經(jīng)實(shí)現(xiàn)了.請(qǐng)幫助

Im using the following code to remove an entry from a table what i want to do is to check if any value was deleted from the table.If one value is deleted,the script should print success else false.This is what i have achieved till now.Please help

<?PHP
    $mysqli = new mysqli("SQLHOST.COM","CLIENT","PASSWORD", "DNAME", 1234);

    if ($mysqli->connect_errno) {
        printf("Connect failed: %s
", $mysqli->connect_error);
        exit();
    }
    else
    {

    printf("cONN Sucees");


    if ($result = $mysqli->query("DELETE FROM ktable WHERE code='value'")) {
        printf("Select returned %d rows.
", $result->num_rows);


     printf($result->num_rows);
        $result->close();
    }

    }
    ?>

推薦答案

你刪掉你需要返回的是affected_rows http://www.php.net/manual/en/mysqli.affected-rows.php

what you delete what you need to return is affected_rows http://www.php.net/manual/en/mysqli.affected-rows.php

你需要更換什么

if ($result = $mysqli->query("DELETE FROM ktable WHERE code='value'")) {
    printf("Select returned %d rows.
", $result->num_rows);


    printf($result->num_rows);
    $result->close();
}

工作代碼

$value = ""; // Set To any Value
$mysqli = new mysqli ( "SQLHOST.COM", "CLIENT", "PASSWORD", "DNAME", 1234 );
if ($mysqli->connect_errno) {
    printf ( "Connect failed: %s
", $mysqli->connect_error );
    exit ();
} else {
    printf ( "cONN Sucees" );
    if ($mysqli->query (sprintf ( "DELETE FROM ktable WHERE code='%s'", mysqli_real_escape_string ( $mysqli, $value ) ) )) {
        printf ( "Affected Rows  %d rows.
", $mysqli->affected_rows );
    }
}

你應(yīng)該有一個(gè)工作輸出

這篇關(guān)于Mysqli DELETE QUERY 在 PHP 腳本中不起作用的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，也希望大家多多支持html5模板網(wǎng)！