我有非常简单的功能（基本上一直在做同样的事情），它试图一次从3个表中获取数据，然后在现场显示它。问题是数据库上的最后一次PDO连接会导致结果出现问题。
详细说明： 如果我使用这样的代码（最后一次连接被注释，它在表axnmrs_positions上）它显示所有resutls和1 VIN的所有数据（ofc没有来自通信表的数据）它应该如何。但如果我取消注释它，它只显示单个结果，我不知道为什么。问题介于几条评论线和结尾之间，但无法找到位置。
我需要什么： 让代码查找并显示所有3个表的所有结果，而不仅仅是单个表
P.S。我知道CODE很糟糕，但它是我开始使用PHP OOP / PDO等等，所以请尊重我的学习：）
我的代码：
public function fetchByVinAxnmrss($con) {
$success = false;
//$this->vin = "KMHLC81UACU021096";
if($this->vin){
try{
$sql = "SELECT * FROM axnmrs_cases WHERE vin = :vin LIMIT 30";
$stmt = $con->prepare( $sql );
$stmt->bindValue( "vin", $this->vin, PDO::PARAM_STR );
$stmt->execute();
while ($row = $stmt->fetch()){
echo"<tr>";
echo "<td class='number'>".$row['claimnumber']."</td>";
// Remove time from date
$date = substr($row['date_created'], 0, -9);
echo "<td class='city'>".$date."</td>";
//echo "<td class='street'>Axnmrs</td>";
// Which Insurer work on it?
switch ($row['insurer_memberid']) {
case "MM-O-37C4CD31-1":
echo "<td class='case'>Allianz</td>";
break;
case "MM-O-679147C3":
echo "<td class='case'>Česká pojišťovna</td>";
break;
case "MM-O-8484AD31-2":
echo "<td class='case'>Česká pojišťovna</td>";
break;
case "MM-O-8484AD31":
echo "<td class='case'>Česká pojišťovna</td>";
break;
case "MM-O-78EFD7AF":
echo "<td class='case'>Česká pojišťovna</td>";
break;
case "MM-O-26D1C0EF":
echo "<td class='case'>Servisní pojišťovna</td>";
break;
case "MM-O-D45A6DEF":
echo "<td class='case'>Triglav Pojišťovna</td>";
break;
case "MM-O-26D1C0EF":
echo "<td class='case'>Servisní pojišťovna</td>";
break;
default:
echo "<td class='case'>Servis</td>";
}
echo "<td class='country'>".$row['country']."</td>";
echo "<td class='action'><button class='btn btn-flat btn-view'><span class='glyphicon glyphicon-eye-open' title='Show Detail'></span></button></td>";
echo"</tr>";
echo"<tr class='detail'>";
echo"<td colspan='6'>";
echo "<div class='case-detail row'>";
echo "<div class='col-xs-6 col-md-3'>";
echo"<dl>";
// What parts are used
echo "<dt>Použité náhradní díly</dt>";
if ($row['part_supplier']=1){
echo "<dd>Originální</dd>";}
else{
echo "<dd>Alternativní</dd>";}
echo "<dt>Datum vytvoření případu</dt>";
echo "<dd>".$row['date_created']."</dd>";
echo "<dt>SPZ</dt>";
echo "<dd>".$row['platenumber']."</dd>";
echo "<dt>Totální škoda</dt>";
if (empty($row['totalloss'])){
echo $row['totalloss'];
echo "<dd>Ne</dd>";}
else{
echo "<dd>Ano</dd>";}
echo "<dt>VIN</dt>";
echo "<dd>".$row['vin']."</dd>";
$this->manufacturer_code = $row['lastcalc_manufacturer_code'];
$this->main_type = $row['lastcalc_model_code'];
$this->subtype_code = $row['lastcalc_submodel_code'];
echo "<dt>Druh vozidla</dt>";
echo "<dd>".$this->getCarType()."</dd>";
echo"</dl>";
echo"</div>";
// DRUHY STLPEC
echo"<div class='col-xs-6 col-md-3'>";
echo"<dl>";
echo "<dt>Identifikace vozidla pomocí AudaVIN</dt>";
if (isset($row['audavin_trigged'])){
echo "<dd>Ano</dd>";}
else{
echo "<dd>Ne</dd>";}
// DATUM NEHODY
echo "<dt>Datum nehody</dt>";
if ($row['accident_date'] == "0000-00-00 00:00:00"){
echo "<dd>Neni k dispozici</dd>";
}
else{
echo "<dd>".$row['accident_date']."</dd>";
}
// DATUM REGISTRACE VOZIDLA
echo "<dt>Datum registrace vozidla</dt>";
if ($row['registration_date'] == "0000-00-00 00:00:00"){
echo "<dd>Neni k dispozici</dd>";
}
else{
echo "<dd>".substr($row['registration_date'], 0, 10)."</dd>";
}
$this->case = $row['case_id'];
try{
$sql = "SELECT * FROM axnmrs_calculations WHERE case_id = :case LIMIT 1";
$stmt_calculations = $con->prepare( $sql );
$stmt_calculations->bindValue( "case", $this->case, PDO::PARAM_STR );
$stmt_calculations->execute();
while ($row = $stmt_calculations->fetch()){
$this->calculationid = $row['calculation_id'];
echo "<dt>Cena náhradních dílů</dt>";
echo "<dd>".$row['spareparts']."</dd>";
echo "<dt>Celkové náklady</dt>";
echo "<dd>".$row['totalcosts']."</dd>";
echo"</dl>";
echo"</div>";
echo"<div class='col-xs-6 col-md-3'>";
echo"<dl>";
echo "<dt>Celkový počet hodin práce</dt>";
echo "<dd>".$row['laborhours']."</dd>";
echo "<dt>Datum vytvoření kalkulace</dt>";
echo "<dd>".substr($row['calculationdate'], 0, 17)."</dd>"; // ODSTRANIT 0000
echo "<dt>Lakovací materiál</dt>";
echo "<dd>".$row['paintmaterial']."</dd>";
echo "<dt>Náklady na práci</dt>";
echo "<dd>".$row['laborcosts']."</dd>";
echo "<dt>Náklady na lakování</dt>";
echo "<dd>".$row['paintlabor']."</dd>";
echo "<dt>Měna</dt>";
echo "<dd>".$row['currency']."</dd>";
echo"</dl>";
echo"</div>";
}
}catch(PDOExeption $e){
echo $e->getMessage();
echo $con->errorInfo();
}
echo"<div class='col-xs-6 col-md-3'>";
echo"<dl>";
echo "<dt>Seznam použitých náhradních dílů </dt>";
//$this->calculationid = $row['calculation_id'];
try{
echo "NECO";
/*
$sql = "SELECT * FROM axnmrs_positions WHERE calculation_id = :calculationid LIMIT 60";
$stmt_position = $con->prepare( $sql );
$stmt_position->bindValue( "calculationid", $this->calculationid, PDO::PARAM_STR );
$stmt_position->execute();
while ($row = $stmt_position->fetch()){
echo "<dd>".$row['text']."</dd>";
}
*/
}catch(PDOExeption $e){
echo $e->getMessage();
echo $con->errorInfo();
}
/*
echo"</dl>";
echo"</div>";
return $success;
*/
echo"</div>";
echo "</td>" ;
echo "</tr>";
}
}catch(PDOExeption $e){
echo $e->getMessage();
echo $con->errorInfo();
}
return $success;
}
}
public function getCarType() {
/*
$this->manufacturer_code = "00";
$this->main_type = "03";
$this->subtype_code = "05";
*/
$success = false;
try{
$con = new PDO( DB_HOST, DB_USER, DB_PASS );
$con->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$sql = "SELECT * FROM car_type WHERE manufacturer_code = :manufacturer_code AND main_type = :main_type AND subtype_code = :subtype_code LIMIT 1";
$stmt_car = $con->prepare( $sql );
$stmt_car->bindValue( "manufacturer_code", $this->manufacturer_code, PDO::PARAM_STR );
$stmt_car->bindValue( "main_type", $this->main_type, PDO::PARAM_STR );
$stmt_car->bindValue( "subtype_code", $this->subtype_code, PDO::PARAM_STR );
$stmt_car->execute();
while ($row = $stmt_car->fetch()){
echo $row['manufacturer'];
echo " ";
echo $row['model'];
echo " ";
echo $row['submodel'];
}
}catch(PDOExeption $e){
echo $e->getMessage();
echo $con->errorInfo();
}
return $success;
}
echo "<dd>Ano</dd>";}
else{
echo "<dd>Ne</dd>";}
// DATUM NEHODY
echo "<dt>Datum nehody</dt>";
if ($row['accident_date'] == "0000-00-00 00:00:00"){
echo "<dd>Neni k dispozici</dd>";
}
else{
echo "<dd>".$row['accident_date']."</dd>";
}
// DATUM REGISTRACE VOZIDLA
echo "<dt>Datum registrace vozidla</dt>";
if ($row['registration_date'] == "0000-00-00 00:00:00"){
echo "<dd>Neni k dispozici</dd>";
}
else{
echo "<dd>".substr($row['registration_date'], 0, 10)."</dd>";
}
$this->case = $row['case_id'];
try{
$sql = "SELECT * FROM axnmrs_calculations WHERE case_id = :case LIMIT 1";
$stmt_calculations = $con->prepare( $sql );
$stmt_calculations->bindValue( "case", $this->case, PDO::PARAM_STR );
$stmt_calculations->execute();
while ($row = $stmt_calculations->fetch()){
$this->calculationid = $row['calculation_id'];
echo "<dt>Cena náhradních dílů</dt>";
echo "<dd>".$row['spareparts']."</dd>";
echo "<dt>Celkové náklady</dt>";
echo "<dd>".$row['totalcosts']."</dd>";
echo"</dl>";
echo"</div>";
echo"<div class='col-xs-6 col-md-3'>";
echo"<dl>";
echo "<dt>Celkový počet hodin práce</dt>";
echo "<dd>".$row['laborhours']."</dd>";
echo "<dt>Datum vytvoření kalkulace</dt>";
echo "<dd>".substr($row['calculationdate'], 0, 17)."</dd>"; // ODSTRANIT 0000
echo "<dt>Lakovací materiál</dt>";
echo "<dd>".$row['paintmaterial']."</dd>";
echo "<dt>Náklady na práci</dt>";
echo "<dd>".$row['laborcosts']."</dd>";
echo "<dt>Náklady na lakování</dt>";
echo "<dd>".$row['paintlabor']."</dd>";
echo "<dt>Měna</dt>";
echo "<dd>".$row['currency']."</dd>";
echo"</dl>";
echo"</div>";
}
}catch(PDOExeption $e){
echo $e->getMessage();
echo $con->errorInfo();
}
echo"<div class='col-xs-6 col-md-3'>";
echo"<dl>";
echo "<dt>Seznam použitých náhradních dílů </dt>";
//$this->calculationid = $row['calculation_id'];
try{
echo "NECO";
$sql = "SELECT * FROM axnmrs_positions WHERE calculation_id = :calculationid LIMIT 60";
$stmt_position = $con->prepare( $sql );
/*
$stmt_position->bindValue( "calculationid", $this->calculationid, PDO::PARAM_STR );
$stmt_position->execute();
while ($row = $stmt_position->fetch()){
echo "<dd>".$row['text']."</dd>";
}
*/
}catch(PDOExeption $e){
echo $e->getMessage();
echo $con->errorInfo();
}
/*
echo"</dl>";
echo"</div>";
return $success;
*/
echo"</div>";
echo "</td>" ;
echo "</tr>";
}
}catch(PDOExeption $e){
echo $e->getMessage();
echo $con->errorInfo();
}
return $success;
}
}
public function getCarType() {
/*
$this->manufacturer_code = "00";
$this->main_type = "03";
$this->subtype_code = "05";
*/
$success = false;
try{
$con = new PDO( DB_HOST, DB_USER, DB_PASS );
$con->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$sql = "SELECT * FROM car_type WHERE manufacturer_code = :manufacturer_code AND main_type = :main_type AND subtype_code = :subtype_code LIMIT 1";
$stmt = $con->prepare( $sql );
$stmt_cartype->bindValue( "manufacturer_code", $this->manufacturer_code, PDO::PARAM_STR );
$stmt_cartype->bindValue( "main_type", $this->main_type, PDO::PARAM_STR );
$stmt_cartype->bindValue( "subtype_code", $this->subtype_code, PDO::PARAM_STR );
$stmt_cartype->execute();
while ($row = $stmt_cartype->fetch()){
echo $row['manufacturer'];
echo " ";
echo $row['model'];
echo " ";
echo $row['submodel'];
}
}catch(PDOExeption $e){
echo $e->getMessage();
echo $con->errorInfo();
}
return $success;
}
}