Question

我最近又重新做了一些PHP编码但却陷入了PHP分页的困境，看起来我试过的任何东西都会导致它不计算页面并显示在一页结果上，或者只是停止在第6页并且不再进一步，我知道存储在MySQL数据库中的数据，它应该显示52页的结果，每页12页。

所以我需要一些帮助，我认为它是有效的，直到我把100的内容输入数据库后才会超越自己的意愿。

代码如下

<?php
    //
    //How to print date
    //
    if($print_date == 1)
    {
        $print_date = '%d.%m.%Y';
    }
    elseif($print_date == 2)
    {
        $print_date = '%m.%d.%Y';
    }
    elseif($print_date == 3)
    {
        $print_date = '%W, %M %D %Y';
    }
    if (isset($_GET['pageno'])) {
        $pageno = $_GET['pageno'];
    } else {
        $pageno = 1;
    } // if

    $get_matches = mysql_query("SELECT 
        O.OpponentName AS hometeam, OP.OpponentName AS awayteam,
        LM.LeagueMatchHomeGoals AS goals_home,
        LM.LeagueMatchAwayGoals AS goals_away,
        LM.LeagueMatchID AS id,
        DATE_FORMAT(LM.LeagueMatchDate, '$print_date') AS date
        FROM tplls_leaguematches LM, tplls_opponents O, tplls_opponents OP
        WHERE O.OpponentID = LM.LeagueMatchHomeID AND
        OP.OpponentID = LM.LeagueMatchAwayID AND
        LeagueMatchSeasonID LIKE '$defaultseasonid'
        ORDER BY LM.LeagueMatchDate");

    $get_matches = @mysql_query($SQL) or die("Error Processing Fixtures");
    $query_data = mysql_fetch_row($get_matches);
    $numrows = $query_data[0];  
    $rows_per_page = 12;
    $lastpage      = ceil($numrows/$rows_per_page);
    $pageno = (int)$pageno;
    if ($pageno > $lastpage) {
        $pageno = $lastpage;
    } // if
    if ($pageno < 1) {
        $pageno = 1;
    } // if
    $limit = 'LIMIT ' .($pageno - 1) * $rows_per_page .',' .$rows_per_page;

    $get_matches2 = mysql_query("SELECT 
        O.OpponentName AS hometeam, OP.OpponentName AS awayteam,
        LM.LeagueMatchHomeGoals AS goals_home,
        LM.LeagueMatchAwayGoals AS goals_away,
        LM.LeagueMatchID AS id,
        DATE_FORMAT(LM.LeagueMatchDate, '$print_date') AS date
        FROM tplls_leaguematches LM, tplls_opponents O, tplls_opponents OP
        WHERE O.OpponentID = LM.LeagueMatchHomeID AND
        OP.OpponentID = LM.LeagueMatchAwayID AND
        LeagueMatchSeasonID LIKE '$defaultseasonid'
        ORDER BY LM.LeagueMatchDate, hometeam $limit",$connection)
        or die(mysql_error());
    while($row = mysql_fetch_array($get_matches2))
    {
?>

更多要添加的内容，如果我取出第一个SELECT语句，我会得到相同的结果吗？

Answer 1

你需要使用mysql_num_rows（resource $ result）而不是mysql_fetch_row（resource $ result）来获取这里的行数：。

$get_matches = @mysql_query($SQL) or die("Error Processing Fixtures");
$query_data = mysql_fetch_row($get_matches);
$numrows = $query_data[0];  
$rows_per_page = 12;
$lastpage      = ceil($numrows/$rows_per_page);
$pageno = (int)$pageno;

或者，您可以在开头使用“count（*）”查询来获取条目数，这将显着加快。

例如：

  $get_matches = mysql_query("SELECT 
    count(*) as resultCount
    FROM tplls_leaguematches LM, tplls_opponents O, tplls_opponents OP
    WHERE O.OpponentID = LM.LeagueMatchHomeID AND
    OP.OpponentID = LM.LeagueMatchAwayID AND
    LeagueMatchSeasonID LIKE '$defaultseasonid'
    ORDER BY LM.LeagueMatchDate");

Answer 2

试一试。这只是你的代码，只有一些小的修改。

<?php
    //
    //How to print date
    //
    switch ($print_date)
    {
    case 1:
        $print_date = '%d.%m.%Y';
        break;
    case 2:
        $print_date = '%m.%d.%Y';
        break;
        case 3:
        $print_date = '%W, %M %D %Y';
    }

    if (isset($_GET['pageno'])) {
        $pageno = $_GET['pageno'];
    } else {
        $pageno = 1;
    } // if

    $clause = "
        FROM tplls_leaguematches LM, tplls_opponents O, tplls_opponents OP
        WHERE O.OpponentID = LM.LeagueMatchHomeID AND
        OP.OpponentID = LM.LeagueMatchAwayID AND
        LeagueMatchSeasonID LIKE '$defaultseasonid'
        ORDER BY LM.LeagueMatchDate";

    $query = "SELECT COUNT(*) as num $clause";
    $result = @mysql_query($query) or trigger_error("SQL", E_USER_ERROR);
    $r = mysql_fetch_row($result);
    $numrows = $r[0];

    $rows_per_page = 12;
    $lastpage      = ceil($numrows/$rows_per_page);
    $pageno = (int)$pageno;
    if ($pageno > $lastpage) {
        $pageno = $lastpage;
    } // if
    if ($pageno < 1) {
        $pageno = 1;
    } // if
    $limit = 'LIMIT ' .($pageno - 1) * $rows_per_page .',' .$rows_per_page;

    $query = "SELECT 
        O.OpponentName AS hometeam, OP.OpponentName AS awayteam,
        LM.LeagueMatchHomeGoals AS goals_home,
        LM.LeagueMatchAwayGoals AS goals_away,
        LM.LeagueMatchID AS id,
        DATE_FORMAT(LM.LeagueMatchDate, '$print_date') AS date $clause $limit";

    $get_matches = mysql_query($query, $connection)
        or die(mysql_error());
    while($row = mysql_fetch_array($get_matches))
    {
?>

这实际上是@ g.salakirov所建议的，但是在你提供的所有代码的上下文中。我还没有测试过它，但它应该工作。（着名的遗言。：D）

PHP分页无法正常运行，在第6页停止

2 个答案: