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POHow to query an array in PHP and return individual rows/items for each element
 

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  1. POHow to query an array in PHP and return individual rows/items for each element
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    <p>Im coding a social web application and Im having some problems. I will ask just one of them as Im unaware of the rules of this forum, i.e, whether I can post more than one problem. I am learning PHP pretty much as I code. I have a table users that has a field called pal_array that holds the user_id's of people who are your pals. Im my example, my pal array has 2 user_id's. </p> <p>I want to be able to query all of a user's pals and be able to show their details e.g thumb pics, names etc. I dont know how to to this properly.</p> <p>My code from pals.php:</p> <pre><code>&lt;?php //Establish the Web Intersect Profile Interaction Token here if(!isset($_SESSION['wipit']))//Check to see if session wipit is set yet { session_register('wipit');//Be sure to register the session if it is not yet set } $thisRandNum = rand(9999999999999,999999999999999999); $_SESSION['wipit'] = base64_encode($thisRandNum); ?&gt; &lt;script type="text/javascript" charset="utf-8"&gt; //jquery functionality for toggling member interaction containers function toggleInteractContainers(x) { if($('#'+x).is(":hidden")) { $('#'+x).slideDown(200); }else { $('#'+x).hide(); } $('.interactContainers').hide(); } // Pal accepting var palRequestURL = "request_as_pal.php"; var thisRandNum = "&lt;?php echo $thisRandNum; ?&gt;"; function acceptPalRequest (x) { $.post(palRequestURL,{ request: "acceptPal", reqID: x, thisWipit: thisRandNum } ,function(data) { $("#req"+x).html(data).show(); }); } function denyPalRequest (x) { $.post(palRequestURL,{ request: "denyPal", reqID: x, thisWipit: thisRandNum } ,function(data) { $("#req"+x).html(data).show(); }); } // End Pal accepting // Pal removal function removeAsPal(a,b) { $("#remove_pal_loader").show(); $.post(palRequestURL,{ request: "removePal", mem1: a, mem2: b, thisWipit: thisRandNum } ,function(data) { $("#remove_friend").html(data).show().fadeOut(12000); }); } // End Pal removal &lt;/script&gt; &lt;?php require_once('Connections/connections.php'); ?&gt; &lt;?php //query username $user_id = $_SESSION['UserSession']; mysql_select_db($database_connections, $connections); $query_user_info = "SELECT username FROM users WHERE user_id='$user_id'"; $user_info = mysql_query($query_user_info, $connections) or die(mysql_error()); $row_user_info = mysql_fetch_assoc($user_info); //code for displaying all your pals $query_pal_array = "SELECT pal_array FROM users WHERE user_id='$user_id'"; $pal_array_result = mysql_query($query_pal_array, $connections) or die(mysql_error()); $row_pal_array = mysql_fetch_assoc($pal_array_result); $pal_array = $row_pal_array['pal_array']; $palList = ""; if($pal_array !="") { $palArray = explode(",",$pal_array); $palCount = count($palArray); $palArray = array_slice($palArray,0,15); $i = 0;//how many times we loop over foreach($palArray as $key =&gt;$array_value) { $i++; //increment by one $palList = "$array_value"; } } else { $palCount = "0"; } ?&gt; &lt;table width="500" border="0"&gt; &lt;tr&gt; &lt;td height="20"&gt;&lt;div class="heading_text_18"&gt;&lt;?php echo $row_user_info ['username']; ?&gt;'s&amp;nbsp;pals &lt;?php echo $palCount ?&gt;&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td class="interactionLinksDiv" align="right" style="border:none;"&gt;&lt;a href="#" onclick="return false" onmousedown="javascript: toggleInteractContainers('pal_requests');"&gt;Pal Requests&lt;/a&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="5"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;div class="interactContainers" id="pal_requests"&gt; &lt;?php //container for accepting/rejecting pal requests $pal_requests = "SELECT * FROM pal_requests WHERE mem2='$user_id' ORDER BY pal_request_id ASC LIMIT 50"; $pal_request_query = mysql_query($pal_requests) or die(mysql_error()); $pal_request_num_rows = mysql_num_rows($pal_request_query); if($pal_request_num_rows &lt; 1) { echo '&amp;nbsp;You have no Pal requests at this time.'; exit(); } else { while($row_pal_query = mysql_fetch_array($pal_request_query)) { $request_id = $row_pal_query["pal_request_id"]; $mem1 = $row_pal_query["mem1"]; $query_user = "SELECT user_first_name, user_last_name, picture_thumb_url FROM users LEFT JOIN picture ON users.user_id = picture.user_id AND picture.avatar=1 WHERE users.user_id='$mem1' LIMIT 1"; $user_info = mysql_query($query_user, $connections) or die(mysql_error()); while ($row = mysql_fetch_array($user_info)){ $requesterFirstName = $row["user_first_name"]; $requesterLastName = $row["user_last_name"]; } { if(!empty($row["picture_thumb_url"])) { $avatar = '&lt;a href="user_view.php?user_id2=' . $mem1 . '"&gt;&lt;img src="/NNL/User_Images/' . $row["picture_thumb_url"] . '" width="50" height="50" border="0"/&gt;&lt;/a&gt;'; } else { $avatar = '&lt;a href="user_view.php?user_id2=' . $mem1 . '"&gt;&lt;img src="/NNL/Style/Images/default_avatar.png" width="50" height="50" border="0"/&gt;&lt;/a&gt;'; } echo '&lt;hr /&gt; &lt;table width="100%" cellpadding="5"&gt; &lt;tr&gt; &lt;td width="17%" align="left"&gt;&lt;div style="overflow:hidden; height:50px;"&gt;'. $avatar .'&lt;/div&gt;&lt;/td&gt; &lt;td width="83%"&gt;&lt;a class="ordinary_text_12_blue "href="user_view.php?user_id2=' . $mem1 . '"&gt;'. $requesterFirstName .' '. $requesterLastName .'&lt;/a&gt; wants to be your Pal&lt;br /&gt;&lt;br /&gt; &lt;span id="req' . $request_id . '"&gt; &lt;a class="ordinary_text_12" href="#" onclick="return false" onmousedown="javascript:acceptPalRequest(' . $request_id . ');" &gt;Accept&lt;/a&gt; &amp;nbsp; &amp;nbsp; OR &amp;nbsp; &amp;nbsp; &lt;a class="ordinary_text_12" href="#" onclick="return false" onmousedown="javascript:denyPalRequest(' . $request_id . ');" &gt;Deny&lt;/a&gt; &lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;'; } } } ?&gt; &lt;/div&gt; &lt;?php //get pal avatars $query_pal_info = "SELECT users.user_id, user_first_name, user_last_name, username, picture_thumb_url, avatar FROM users LEFT JOIN picture ON users.user_id = picture.user_id AND picture.avatar=1 WHERE users.user_id = $array_value"; $pal_info = mysql_query($query_pal_info , $connections) or die(mysql_error()); $totalRows_pal_info = mysql_num_rows($pal_info ); echo $totalRows_pal_info; echo "\n&lt;table&gt;"; $i = 5; while ($row_pal_info = mysql_fetch_assoc($pal_info)) { if($i==5) echo "\n\t&lt;tr&gt;"; $thumbnail_user = $row_pal_info['picture_thumb_url'] != '' ? $row_pal_info['picture_thumb_url'] : '../Style/Images/default_avatar.png'; echo "&lt;td width='100' height='100' align='center' valign='middle'&gt;&lt;a href = 'user_view.php?user_id2=$array_value'&gt; &lt;img src='/NNL/User_Images/$thumbnail_user' border='0'/&gt;&lt;/a&gt;&lt;/td&gt;\n"; $i--; if($i==0) { echo "\n\t&lt;/tr&gt;\n\t&lt;tr&gt;"; $i = 5; } } if($i!=5) echo "\n\t\t&lt;td colspan=\"$i\"&gt;&lt;/td&gt;\n\t&lt;/tr&gt;"; echo "\n&lt;/table&gt;"; ?&gt; </code></pre> <p>Near the bottom, I have this query </p> <pre><code>$query_pal_info = "SELECT users.user_id, user_first_name, user_last_name, username, picture_thumb_url, avatar FROM users LEFT JOIN picture ON users.user_id = picture.user_id AND picture.avatar=1 WHERE users.user_id = $array_value"; </code></pre> <p>The variable $array_value holds the array of the user_id's of pals. How will I be able to show individual pals? I also have a question as to why anything below my interactContainers div will not show.</p> <p>Thanks in advance</p>
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