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如何從功能

2012-03-03 100 views
1

返回變量，這可能是簡單的，但即時通訊失去如何從功能

我有這樣一段代碼

$query = " 
SELECT torrents.id, 
     torrents.anon, 
     torrents.announce, 
     torrents.parentcat, 
     torrents.category, 
     torrents.vip, 
     torrents.`4ever`, 
     torrents.leechers, 
     torrents.nfo, 
     torrents.seeders, 
     torrents.name, 
     torrents.times_completed, 
     torrents.`size`, 
     torrents.added, 
     torrents.comments, 
     torrents.numfiles, 
     torrents.filename, 
     torrents.owner, 
     torrents.safe, 
     torrents.external, 
     torrents.freeleech, 
     categories_parent.cat_parent_name, 
     categories_parent.image_parent, 
     categories.name         AS cat_name, 
     categories.image         AS cat_pic, 
     users.username, 
     users.privacy, 
     Round(torrents.ratingsum/torrents.numratings, 1) AS rating 
FROM torrents 
     LEFT JOIN categories 
     ON category = categories.id 
     LEFT JOIN categories_parent 
     ON parentcat = categories_parent.cat_parent_id 
     LEFT JOIN users 
     ON torrents.owner = users.id 
WHERE visible = 'yes' 
     AND safe = 'yes' 
     AND banned = 'no' 
ORDER BY id DESC 
LIMIT 5 "; 
$res = SQL_Query_exec($query); 
if (mysql_num_rows($res)) { 
    torrenttable1($res);

現在我的功能代碼生成一個表，如果我想從一個值函數，即在我的原始代碼中使用row [id]如何將其從我的函數中發回，以及如何提取它，以便我可以繼續使用該值。

function torrenttable($res) { 
global $site_config, $CURUSER, $THEME, $LANGUAGE; //Define globals 

if ($site_config["MEMBERSONLY_WAIT"] && $site_config["MEMBERSONLY"] && in_array($CURUSER["class"], explode(",",$site_config["WAIT_CLASS"]))) { 

$wait = $site_config["WAITA"]; 
} 

// Columns 
$cols = explode(",", $site_config["torrenttable_columns"]); 
$cols = array_map("strtolower", $cols); 
$cols = array_map("trim", $cols); 
$colspan = count($cols); 
// End 

// Expanding Area 
$expandrows = array(); 
if (!empty($site_config["torrenttable_expand"])) { 
    $expandrows = explode(",", $site_config["torrenttable_expand"]); 
    $expandrows = array_map("strtolower", $expandrows); 
    $expandrows = array_map("trim", $expandrows); 
} 
// End 



while ($row = mysql_fetch_assoc($res)) { 
    $id = $row["id"]; 

    print("<li><div id=row>"); 

$x = 1; 

foreach ($cols as $col) { 
    switch ($col) { 
     case 'category': 
      print("<div id=left>"); 
      if (!empty($row["cat_name"])) { 
       print("<a href=\"torrents-search.php?cat=" . $row["category"] . "\">"); 

       if (!empty($row["cat_pic"]) && $row["cat_pic"] != "") 
        print("<img border=\"0\"src=\"" . $site_config['SITEURL'] . "/images/categories/" . $row["cat_pic"] . "\" alt=\"" . $row["cat_name"] . "\" />"); 
       else 
        print("$row[cat_name]"); 
       print("</a>"); 
      } else 
       print("-"); 
      print("</div>\n"); 
     break; 
     //km added for parent picture 
     case 'parent': 
      print("<div id=left>"); 
      if (!empty($row["cat_parent_name"])) { 
       //print("<a href=\"torrents-details.php?id=$id&amp;hit=1\">"); 
       print("<a href=\"torrents-search.php?cat1=" . $row["parentcat"] . "\">"); 
            if (!empty($row["image_parent"]) && $row["image_parent"] != "") 
        print("<img border=\"0\"src=\"" . $site_config['SITEURL'] . "/images/categories/" . $row["image_parent"] . "\" alt=\"" . $row["cat_parent_name"] . "\" />"); 
       else 
        print("$row[cat_parent_name]"); 
       print("</a>"); 
      } else 
       print("-"); 
      print("</div>\n"); 
     break; 

     //kn end for parent picture// 


     case 'name': 
      $char1 = 60; //cut name length 
      $smallname = htmlspecialchars(CutName($row["name"], $char1)); 
      $dispname = "<b>".$smallname."&nbsp;</b>"; 
      $time = date('jS M Y, g:ia', utc_to_tz_time($row['added'])); 

      //balloon mod 

      $bimg = @mysql_fetch_array(@mysql_query("SELECT image1 FROM torrents WHERE id=$id")); 
     $balon =($bimg["image1"] ? "$site_config[SITEURL]/uploads/images/" . htmlspecialchars($bimg["image1"]) : "images/nocover.jpg"); 

       print("<div id=left>".(count($expandrows)?"<a href=\"java script: klappe_torrent('t".$row['id']."')\"><img border=\"0\" src=\"".$site_config["SITEURL"]."/images/plus.gif\" id=\"pict".$row['id']."\" alt=\"Show/Hide\" class=\"showthecross\"></a>":"")."&nbsp;<a href=\"torrents-details.php?id=$id&amp;hit=1\" onMouseover=\"ddrivetip('<img border=0 width=120 src=$balon>')\"; onMouseout=\"hideddrivetip()\">$dispname</a><br><font color=grey><small>&nbsp;Added:&nbsp; ".$time."</font></small></div>");    
      //end balloon mod 




     // print("<td class='ttable_col$x' nowrap='nowrap'>".(count($expandrows)?"<a href=\"javascript: klappe_torrent('t".$row['id']."')\"><img border=\"0\" src=\"".$site_config["SITEURL"]."/images/plus.gif\" id=\"pict".$row['id']."\" alt=\"Show/Hide\" class=\"showthecross\" /></a>":"")."&nbsp;<a title=\"".$row["name"]."\" href=\"torrents-details.php?id=$id&amp;hit=1\">$dispname</a><br><font color=grey><small>&nbsp;Added:&nbsp; ".$time."</font></small> </td>"); 
      //vip 

      break; 
      case 'vip': 
      $dispname1 =""; 
       if ($row["vip"] == "y") { 
          $dispname1 = $dispname1 . "<img src='images/vip/vipsmall.png'/border=0 title=\"Vip\" >"; 
          } 
      //vip end 
      if ($row["4ever"] == "y") { 
          $dispname1 = $dispname1 . "<img src='images/vip/4evervipsmall.png'/border=0 title=\"Vip 4Ever\" >"; 
          } 

      $last_access = $CURUSER["last_browse"]; 
      $time_now = gmtime(); 
      if ($last_access > $time_now || !is_numeric($last_access)) 
       $last_access = $time_now; 
      if (sql_timestamp_to_unix_timestamp($row["added"]) >= $last_access) 
       $dispname .= "<b><font color='#ff0000'> - (".T_("NEW")."!)</font></b>"; 

      if ($row["freeleech"] == 1) 
       $dispname1 .= " <img src='images/vip/freeleechsmall.png' border='0' title=\"Freeleech\" />"; 
      print("<div id=left><center>$dispname1</center></div>"); 
     break; 

        case 'uploader': 
      echo "<div id=left>"; 
      if (($row["anon"] == "yes" || $row["privacy"] == "strong") && $CURUSER["edit_torrents"] != "yes") 
       echo "Anonymous"; 
      elseif ($row["username"]) 
       echo "<a href='account-details.php?id=$row[owner]'>$row[username]</a>"; 
      else 
       echo "Unknown"; 
      echo "</div>"; 
     break; 
     case 'comments': 
      print("<div id=left><font size='1' face='verdana'><a href='comments.php?type=torrent&amp;id=$id'>" . number_format($row["comments"]) . "</a></font></div>\n"); 
     break; 

     case 'size': 
      print("<div id=left>".mksize($row["size"])."</div>\n"); 
     break; 

     case 'seeders': 
      print("<div id=left><font color='green'><b>".number_format($row["seeders"])."</b></font></div>\n"); 
     break; 
     case 'leechers': 
     $lots1 = $row['id']; 

      print("<div id=left><font color='#ff0000'><b>" . number_format($row["leechers"]) . "</b>$lots1</font></div>\n"); 
     break; 
        case 'wait': 
      if ($wait){ 
       $elapsed = floor((gmtime() - strtotime($row["added"]))/3600); 
       if ($elapsed < $wait && $row["external"] != "yes") { 
        $color = dechex(floor(127*($wait - $elapsed)/48 + 128)*65536); 
        print("<div id=row><a href=\"faq.php#section46\"><font color=\"$color\">" . number_format($wait - $elapsed) . " h</font></a></div>\n"); 
       } else 
        print("<td class='ttable_col$x' align='center'>--</td>\n"); 
      } 
     break; 
     case 'rating': 
      if (!$row["rating"]) 
       $rating = "<img src='images/rating/0.png' border=0>"; 
      else 
       $rating = "<a title='$row[rating]/5'>".ratingpic($row["rating"])."</a>"; 
       //$rating = ratingpic($row["rating"]); 
       //$srating .= "$rpic (" . $row["rating"] . " out of 5) " . $row["numratings"] . " users have rated this torrent"; 
      print("<div id=left>$rating</div>"); 
     break; 

     //km added book marks 
     case 'Bookmark': 
     if ($variant == "bookmarks") 
     echo "<div id=left><a href='bookmarktakedel.php?bookmarkid=$id' title='Delete'><img src='images/delchat.gif'    border='0' width='10px' alt='delete' title='delete' /></a></div>"; 
        break;   
        //end bookmarks 


    } 
    if ($x == 2) 
     $x--; 
    else 
     $x++; 
} 





    //Wait Time Check 
    if ($wait && !in_array("wait", $cols)) { 
     $elapsed = floor((gmtime() - strtotime($row["added"]))/3600); 
     if ($elapsed < $wait && $row["external"] != "yes") { 
      $color = dechex(floor(127*($wait - $elapsed)/48 + 128)*65536); 
      print("<div id=left><a href=\"faq.php\"><font color=\"$color\">" . number_format($wait - $elapsed) . " h</font></a></div>\n"); 
     } else 
      print("<div id=left>--</div>\n"); 
     $colspan++; 
     if ($x == 2) 
      $x--; 
     else 
      $x++; 
    } 
    //$lots = $row['id']; 

      print("</div></li>"); 

    //Expanding area 
    if (count($expandrows)) { 
     print("<tr><td class='ttable_col$x' colspan='$colspan'><div id=\"kt".$row['id']."\" style=\"margin-left: 2px; display: none;\">"); 
     print("<table width='100%' border='0' cellspacing='0' cellpadding='0'>"); 
     foreach ($expandrows as $expandrow) { 
      switch ($expandrow) { 
       case 'size': 
        print("<tr><td><b>".T_("SIZE")."</b>: ".mksize($row['size'])."</td></tr>"); 
       break; 
       case 'speed': 
        if ($row["external"] != "yes" && $row["leechers"] >= 1){ 
         $speedQ = SQL_Query_exec("SELECT (SUM(downloaded))/(UNIX_TIMESTAMP('".get_date_time()."') - UNIX_TIMESTAMP(started)) AS totalspeed FROM peers WHERE seeder = 'no' AND torrent = '$id' ORDER BY started ASC"); 
         $a = mysql_fetch_assoc($speedQ); 
         $totalspeed = mksize($a["totalspeed"]) . "/s"; 
         print("<tr><td><b>".T_("SPEED").":</b> $totalspeed</td></tr>"); 
        } 
       break; 
       case 'added': 
        print("<tr><td><b>".T_("ADDED").":</b> ".date("d-m-Y \\a\\t H:i:s", utc_to_tz_time($row['added']))."</td></tr>"); 
       break; 
       case 'tracker': 
       if ($row["external"] == "yes") 
        print("<tr><td><b>".T_("TRACKER").":</b> ".htmlspecialchars($row["announce"])."</td></tr>"); 
       break; 
       case 'completed': 
        print("<tr><td><b>".T_("COMPLETED")."</b>: ".number_format($row['times_completed'])."</td></tr>"); 
       break; 
      } 
     } 
      print("</table></div></td></tr>\n"); 
    } 
    //End Expanding Area 


}

來源

2012-03-03 Steven Kinnear

+1

看一看文檔：http://www.php.net/manual/en/functions.returning-values.php – 2012-03-03 15:34:24

+0

如果你需要的一切從'torrents'表中的列，你可以隨時使用'種子。 *'在'SELECT'中 – 2012-03-03 15:38:05

+0

我在函數中有$ row [id]，我想把最後一個發送回原始代碼片段。 – 2012-03-03 15:45:15

回答

3 
function torrenttable1($res) { 

    //[Table stuff] 

    return $value; 
}

的調用將是：

$returnedVar = torrenttable1($res);

...有點難懂的問題。

來源

2012-03-03 15:39:54 Ing

+0

感謝隊友這是我失蹤的電話;） – 2012-03-03 15:49:51

+0

+1從我。我一直在閱讀大量的文章，尋找一個簡單的答案，這是唯一一個對這個新手有意義的人。乾淨利落！謝謝！ – 2013-01-17 06:33:39

0 
function func1($a) { 
    return $a; 
} 
$a=5; 
echo func1($a);

來源

2012-03-03 15:31:15 qpaycm

+0

function torrenttable1（$ res）{打印我的表格，如果我想從一個while循環中返回一行結果發回來使用我該怎麼做} – 2012-03-03 15:32:06

+0

顯示我的代碼。我希望不要使用它沒有你的協議;） – qpaycm 2012-03-03 15:37:29

0 
return torrenttable1($res);

在功能：

function torrenttable1($res) 
{ 
. 
return $xyz; 
}

來源

2012-03-03 15:37:11 sandeep

2

我不太明白你想要做什麼，但：

函數封裝數據。即內部不能，也不應該訪問。它就像一個黑盒子，你可以放入東西，而在另一端，這個功能會給你一些東西。

該功能總是可以通過return返回給您。但是，這隻能做一次！一旦函數返回一些東西，它就會停止執行。

當然，你可以返回一個數組。這樣你就可以返回多個值。但是，一旦你返回一些東西的功能停止和調用代碼恢復...

來源

2012-03-03 15:40:42 fourreux

0

爲什麼不把你的代碼放在類中，併爲SQL返回結果創建變量/數據數組？在這種情況下，您可以隨時隨地訪問它們，並且可以隨時隨地訪問您的php文件

來源

2012-03-03 15:56:44 sumofighter666

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