PHP分页不能正常工作，在第6页停止

Question

我最近又回到了一些PHP编程，但已经陷入与PHP分页的东西，似乎我试过的任何事情都会导致它不计算页面和在结果的一页上显示，或者只是在第6页停下来，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页结果，每页12个。

所以我需要一些帮助，我认为这是有效的，直到我打入数据库之后，将不会超过第100页。

的代码如下

<?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)) 
    { 
?> 

更多以添加，如果我拿出第一个SELECT语句，我得到了同样的结果？

Answer 1

尝试了这一点。这只是你的代码，稍作修改。

<?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)) 
    { 
?> 

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

Answer 2

您需要使用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，您可以在开始时使用“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");