I have a written a script which allows users to search a database for members, it all works fine if there are results, but when there are no results I get a mysql_fetch_array(): Error. I just can’t see why, I will paste my php code below if anyone can help?
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<?php include_once("PHPScripts/checkuserlog.php"); ?> <?php extract($_REQUEST); // zipsearch func function selectQry($sql,$return_type='') { //echo $sql; $retResultSelect = array(); $rs = mysql_query($sql) or die("MySQL Error Happend : " .mysql_error()); if($retun_type == "") { while( ($row = mysql_fetch_assoc($rs))) { $retResultSelect[] = $row; } return $retResultSelect; } else if($retun_type == "resource") return $rs; } function zipRadiusSQL($varZip, $varLatitude, $varLongitude, $varMiles) { $varLatRange = $varMiles / ((6076 / 5280) * 60) + ($varMiles / 1000); $varLonRange = $varMiles / (((cos($varLatitude * 3.141592653589 / 180) * 6076.) / 5280.) * 60) + ($varMiles / 1000); $zipRadiusSQL_str = "SELECT latitude, longitude, district , postcode"; $zipRadiusSQL_str = $zipRadiusSQL_str . " FROM ukpostcodes WHERE postcode != ''"; $zipRadiusSQL_str = $zipRadiusSQL_str . " AND ("; $zipRadiusSQL_str = $zipRadiusSQL_str . "longitude <= (" . $varLongitude . " + " . $varLonRange . ")"; $zipRadiusSQL_str = $zipRadiusSQL_str . " AND "; $zipRadiusSQL_str = $zipRadiusSQL_str . "longitude >= (" . $varLongitude . " - " . $varLonRange . ")"; $zipRadiusSQL_str = $zipRadiusSQL_str . ")"; $zipRadiusSQL_str = $zipRadiusSQL_str . " AND ("; $zipRadiusSQL_str = $zipRadiusSQL_str . "latitude <= (" . $varLatitude . " + " . $varLatRange . ")"; $zipRadiusSQL_str = $zipRadiusSQL_str . " AND "; $zipRadiusSQL_str = $zipRadiusSQL_str . "latitude >= (" . $varLatitude . " - " . $varLatRange . ")"; $zipRadiusSQL_str = $zipRadiusSQL_str . ")"; if ($varZip != "") { $zipRadiusSQL_str = $zipRadiusSQL_str . " AND postcode <> '" . $varZip . "'"; } $zipRadiusSQL_str = $zipRadiusSQL_str . " AND longitude <> 0"; $zipRadiusSQL_str = $zipRadiusSQL_str . " AND latitude <> 0"; $zipRadiusSQL_str = $zipRadiusSQL_str . " ORDER BY postcode ASC"; $zipRadiusSQL = $zipRadiusSQL_str; return $zipRadiusSQL; } function zipDistCalc($Lat1, $Lon1, $Lat2, $Lon2, $UnitFlag) { $PI = 3.141592654; if (is_null($Lat1)) { return; } if($Lat1 == 0 or $Lon1 == 0 or $Lat2 == 0 or $Lon2 == 0) { $DistCalc = -1; return $DistCalc; } elseif ($Lat1 == $Lat2 and $Lon1 == $Lon2) { $DistCalc = 0; return $DistCalc; } $LatRad1 = $Lat1 * $PI / 180; $LonRad1 = $Lon1 * $PI / 180; $LatRad2 = $Lat2 * $PI / 180; $LonRad2 = $Lon2 * $PI / 180; $LonRadDif = Abs($LonRad1 - $LonRad2); $X = Sin($LatRad1) * Sin($LatRad2) + Cos($LatRad1) * Cos($LatRad2) * Cos($LonRadDif); $RadDist = atan(-$X / sqrt(-$X * $X + 1)) + 2 * atan(1); $DistMI = $RadDist * 3958.754; $DistKM = $DistMI * 1.609344; If (strtoupper($UnitFlag) == "M") { $zipDistCalc = $DistMI; } else { $zipDistCalc = $DistKM; } return $zipDistCalc; } function getZipCodes($zip_code,$radiusRangeLow='0',$radiusRangeHeigh='10') { $zipCodesArray=array(); $fetchZipInfoQry="SELECT postcode,latitude,longitude FROM ukpostcodes WHERE postcode='".addslashes($zip_code)."'"; $zipInfo=selectQry($fetchZipInfoQry); if(sizeof($zipInfo)>0) { $fetchZipsInRangeSql = zipRadiusSQL($zipInfo[0]['postcode'], $zipInfo[0]['latitude'], $zipInfo[0]['longitude'], $radiusRangeHeigh); $zipRangeInfo=selectQry($fetchZipsInRangeSql); $zipRangeInfoSize=sizeof($zipRangeInfo); if($zipRangeInfoSize>0) { for($i=0;$i<$zipRangeInfoSize;$i++) { $zipLatitude = $zipRangeInfo[$i]["latitude"]; $zipLongitude = $zipRangeInfo[$i]["longitude"]; $zipZipCode = $zipRangeInfo[$i]["postcode"]; $zipDistance = zipDistCalc($zipInfo[0]['latitude'], $zipInfo[0]['longitude'], $zipLatitude, $zipLongitude, "M"); if(($zipDistance > $radiusRangeLow) and ($zipDistance < $radiusRangeHeigh)) { $zipCodesArray[]="'".$zipZipCode."'"; } } // rturn the $zipCodesArray unset($zipcodeClass); return $zipCodesArray; }else { ## no matching zip codes found return $zipCodesArray; } }else { ## zip code is invalid ( not exist in the zipcode db) return $zipCodesArray; } } $zipcode = trim($_REQUEST['zipcode']); if (strpos($zipcode," ") > 0) { $zipcode = trim( substr($zipcode, 0, strpos($zipcode," ")) ); } else if (strlen($zipcode) > 4) { $zipcode = trim( substr($zipcode, 0, strlen($zipcode)-3) ); } // zipcode search if($_REQUEST[zipcode]!='' && $_REQUEST[zip_range] > 0) { $zipCodeArray=getZipCodes(strtoupper($zipcode),0,$zip_range); if(sizeof($zipCodeArray)>1) { $zipCodeString=implode(',',$zipCodeArray); $str = ""; for ($k=0;$k <?php $Special = mysql_query("SELECT special.special FROM special"); $row_Special = mysql_fetch_assoc($Special); $totalRows_Special = mysql_num_rows($Special); ?> <?php //calculate years of age (input string: YYYY-MM-DD) function birthday ($birthday){ list($year,$month,$day) = explode("-",$birthday); $year_diff = date("Y") - $year; $month_diff = date("m") - $month; $day_diff = date("d") - $day; if ($day_diff < 0 || $month_diff < 0) $year_diff--; return $year_diff; } $birthday = ''.birthday($birthday).''; ?> <?php $fname = ''; $sname = ''; $speciality = ''; $zipcode = ''; $zip_range = ''; $listbyq = ''; $queryString = ''; $queryMsg = ''; if (isset($_GET['listByq'])){ if ($_GET['listByq'] == "pt_search") { $speciality = $_GET['speciality']; $fname = $_GET['fname']; $fname = stripslashes($fname); $fname = strip_tags($fname); $fname = eregi_replace("`", "", $fname); $fname = mysql_real_escape_string($fname); $sname = $_GET['sname']; $sname = stripslashes($sname); $sname = strip_tags($sname); $sname = eregi_replace("`", "", $sname); $sname = mysql_real_escape_string($sname); if ($fname){ $fname = " AND firstname LIKE '%$fname%'"; } else { $fname = ""; } if ($sname){ $sname = " AND surname LIKE '%$sname%'"; } else { $sname = ""; } if ($zipcode){ $zipcode = " AND zipcode LIKE '%$zipcode%'"; } else { $zipcode = ""; } if ($zip_range){ $zip_range = " AND zip_range LIKE '%$zip_range%'"; } else { $zip_range = ""; } if ($speciality){ $speciality = " AND special LIKE '%$speciality%'"; } else { $speciality = ""; } $queryString = "email_activated='1'$fname$sname$zipcode$zip_range$speciality$appendQuery"; $queryMsg = 'Search Found .$nr. Personal Trainers
'; } } else{ $queryString = "email_activated='1'"; $queryMsg = "
Showing Most Recent Personal Trainers
"; } ////////////// QUERY THE MEMBER DATA USING THE $queryString variable's value $sql = mysql_query("SELECT id,firstname,surname,gender,zipcode,rateto,ratefrom,special FROM ptdata WHERE $queryString ORDER BY id DESC"); //////////////////////////////////// Pagination /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// $nr = mysql_num_rows($sql); // Get total of Num rows from the database query if (isset($_GET['pn'])) { // Get pn from URL vars if it is present $pn = preg_replace('#[^0-9]#i', '', $_GET['pn']); // filter everything but numbers for security(new) } else { // If the pn URL variable is not present force it to be value of page number 1 $pn = 1; } //This is where we set how many database items to show on each page $itemsPerPage = 2; // Get the value of the last page in the pagination result set $lastPage = ceil($nr / $itemsPerPage); // Be sure URL variable $pn(page number) is no lower than page 1 and no higher than $lastpage if ($pn < 1) { // If it is less than 1 $pn = 1; // force if to be 1 } else if ($pn > $lastPage) { // if it is greater than $lastpage $pn = $lastPage; // force it to be $lastpage's value } // This creates the numbers to click in between the next and back buttons // This section is explained well in the video that accompanies this script $centerPages = ""; $sub1 = $pn - 1; $sub2 = $pn - 2; $add1 = $pn + 1; $add2 = $pn + 2; if ($pn == 1) { $centerPages .= ' ' . $pn . ' '; $centerPages .= ' ' . $add1 . ' '; } else if ($pn == $lastPage) { $centerPages .= ' ' . $sub1 . ' '; $centerPages .= ' ' . $pn . ' '; } else if ($pn > 2 && $pn < ($lastPage - 1)) { $centerPages .= ' ' . $sub2 . ' '; $centerPages .= ' ' . $sub1 . ' '; $centerPages .= ' ' . $pn . ' '; $centerPages .= ' ' . $add1 . ' '; $centerPages .= ' ' . $add2 . ' '; } else if ($pn > 1 && $pn < $lastPage) { $centerPages .= ' ' . $sub1 . ' '; $centerPages .= ' ' . $pn . ' '; $centerPages .= ' ' . $add1 . ' '; } // This line sets the "LIMIT" range... the 2 values we place to choose a range of rows from database in our query $limit = 'LIMIT ' .($pn - 1) * $itemsPerPage .',' .$itemsPerPage; // Now we are going to run the same query as above but this time add $limit onto the end of the SQL syntax // $sql2 is what we will use to fuel our while loop statement below $sql2 = mysql_query("SELECT id,firstname,surname,gender,zipcode,rateto,ratefrom,special FROM ptdata WHERE $queryString ORDER BY id DESC $limit"); /////////////////// ///////////////////////////////////// Pagination Display Setup /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// $paginationDisplay = ""; // Initialize the pagination output variable // This code runs only if the last page variable is not equal to 1, if it is only 1 page we require no paginated links to display if ($lastPage != "1"){ // This shows the user what page they are on, and the total number of pages $paginationDisplay .= 'Page ' . $pn . ' of ' . $lastPage. '
| ' . $user_pic . ' | Name: | ' . $fullname . ' | View Profile |
| Age: | ' .birthday($birthday).' | ||
| Price Range: | ' . $ratefrom . ' ' . $rateto . ' |
'; }// close while ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////// END QUERY THE MEMBER DATA & Build the Output Section //////////////////////////// ?>
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