如何将此折旧的 mysql 脚本移植到 mysqli [重复]

Question

我之前发布了这个脚本来修复分页错误，现在我需要更新它以摆脱贬值的 mysql，但我遇到了 ceil(mysql_result) 和 mysql_fetch_assoc($query) 部分的问题。

$per_page = 25;
$pages_query = mysql_query("SELECT count(*) FROM my_db WHERE StartDate >= CURDATE()");
$pages = ceil(mysql_result($pages_query, 0) / $per_page);
$page = (isset($_GET['page'])) ? (int)$_GET['page'] : 1;
$start = ($page - 1) * $per_page;
$query = mysql_query("SELECT *, DATE_FORMAT(StartDate, '%d/%m/%Y') StartDate, CompName, HostState, Location,  competitiontypedesc FROM my_db WHERE StartDate >= CURDATE() LIMIT $start, $per_page"); 

while($query_row = mysql_fetch_assoc($query)) {
echo"
<li class='kleo-masonry-item event-item'> 
    <div class='member-inner-list animated animate-when-almost-visible bottom-to-top start-animation grey-border'> 
        <div class='event-cell event-date-cell'>
            <p class='no-margin'>" . $query_row["StartDate"] . "</p>
        </div>
        <div class='event-cell name'>
            <p class='no-margin'>" . $query_row["CompName"] ." " .$query_row["LastName"]. "</p>
        </div>
        <div class='event-cell'>
            <p class='no-margin'>" . $query_row["Location"] . "</p>
        </div>
        <div class='event-cell'>
            <p class='no-margin'>" . $query_row["HostState"] . "</p>
        </div>
</li>
"
;   
}
            $prev = $page - 1;
            $next = $page + 1;

            if(!($page <= 1)){
            echo "<a href='?page=$prev'><</a> ";}

            if($pages >= 1){
            for($x=1; $x<=$pages; $x++){
            echo ($x == $page) ? '<b><a href="?page='.$x.'">'.$x.'</a></b> ' : '<a href="?page='.$x.'">'.$x.'</a>';}
            }

            if(!($page >= $pages)){
            echo "<a href='?page=$next'>></a> ";}
            }
            }

Answer 1

习惯于清楚地命名变量：$pages_query 应该是 $pagesResultset。 这就是本质：

$dbCon = new mysqli(host,user,pas,db);
$resultset = $dbCon->query("select ...");
if($resultset->num_rows == 0) die('issues');
$pageSize = 25;
$pageCount = ceil($resultset->num_rows / $pageSize);
while($row = $resultset->fetch_assoc()) {
    /* do something */
}
$dbCon->close();