我想知道是否有人可以在这里告诉我。我有一个页面，我在更新数据库中的信息，从上一页我发布任何新图像（也有标题），我有一个删除图像的复选框。在处理页面上，我有以下代码：
<?php
session_start();
$dbhost = 'removed';
$dbuser = 'removed';
$dbpass = 'removed';
$dbname = 'removed';
function reArrayFiles($file_post) {
$file_ary = array();
$file_count = count($file_post['name']);
$file_keys = array_keys($file_post);
for ($i=0; $i<$file_count; $i++) {
foreach ($file_keys as $key) {
$file_ary[$i][$key] = $file_post[$key][$i];
}
}
return $file_ary;
}
try {
$dbo = new PDO('mysql:host=localhost;dbname='.$dbname, $dbuser, $dbpass);
}catch (PDOException $e) {
print "Error!: " . $e->getMessage() . "<br/>";
die();
}
$query="SELECT * FROM `soldier_info` WHERE `soldier_id` = " . $_POST['soldier_id'] ;
foreach ($dbo->query($query) as $row) {
$soldier_pre_images = explode(",", $row['soldier_images']);
}
if($_POST['deletephoto']){
$imagestodelete=$row['soldier_images'];
$captionstodelete=$row['soldier_images_captions'];
foreach($_POST['deletephoto'] as $todelete){
$deleteexplode = explode("--",$todelete);
echo $deleteexplode;
$deleteexplodepath = $deleteexplode[0];
$deletecaption=$deleteexplode[1];
$imagesafterdelete= str_replace($deleteexplodepath.",","",$imagestodelete);
echo $imagesafterdelete;
$captionsafterdelete = str_replace($deletecaption."--","",$captionstodelete);
echo $captionsafterdelete;
$unlinkpath = str_replace('site url','..',$deleteexplodepath);
unlink($unlinkpath);
}
try {
$dbo = new PDO('mysql:host=localhost;dbname='.$dbname, $dbuser, $dbpass);
$dbo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$q = $dbo->prepare("UPDATE `soldier_info` SET `soldier_images`= :image, `soldier_images_captions`= :captions WHERE `soldier_id`= :id");
$q->execute(array(":image" => $imagesafterdelete, ":captions" => $captionsafterdelete, ":id" => $_POST['soldier_id']));
}catch (PDOException $e) {
$db_error = "Error!: " . $e->getMessage() . "<br/>";
die();
}
}
if ($_FILES['photo']) {
$file_ary = reArrayFiles($_FILES['photo']);
$capcount = 0;
foreach ($file_ary as $file) {
$allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $file["name"]);
$extension = end($temp);
if ((($file["type"] == "image/gif")||($file["type"] == "image/jpeg")||($file["type"] == "image/jpg")||($file["type"] == "image/pjpeg")||($file["type"] == "image/x-png")||($file["type"] == "image/png"))&&($file["size"] < 9000000) && in_array(strtolower($extension), $allowedExts)) {
if ($file["error"] > 0) {
$file_error = "Return Code: " . $file["error"] . "<br>";
} else {
$newfilename = "../assets/uploads/images/" . $_POST['soldier_id'] . "/" . $file["name"];
$file_fullname = "site urlv/assets/uploads/images/" . $_POST['soldier_id'] . "/" . $file["name"];
$new_caption = $_POST['image_captions'][$capcount];
if (file_exists($newfilename)) {
$file_exists = $file["name"] . " already exists. ";
} else {
if(is_dir("../assets/uploads/images/" . $_POST['soldier_id'])){
move_uploaded_file($file["tmp_name"],$newfilename);
if (strlen($uploaded_images)>1){
$uploaded_images = $uploaded_images . ",". $file_fullname;
}else{
$uploaded_images = $file_fullname;
}
if (strlen($uploaded_captions)>1){
$uploaded_captions = $uploaded_captions . "--". $new_caption;
}else{
$uploaded_captions = $new_caption;
}
}else{
mkdir("../assets/uploads/images/" . $_POST['soldier_id'], 0777, true);
move_uploaded_file($file["tmp_name"],$newfilename);
if (strlen($uploaded_images)>1){
$uploaded_images = $uploaded_images . ",". $file_fullname;
}else{
$uploaded_images = $file_fullname;
}
if (strlen($uploaded_captions)>1){
$uploaded_captions = $uploaded_captions . "--". $new_caption;
}else{
$uploaded_captions = $new_caption;
}
}
}
if (strlen($row['soldier_images'])>1){
$uploaded_images = $row['soldier_images'] . ",". $uploaded_images;
}else{
$uploaded_images = $uploaded_images;
}
}
} else {
$file_invalid = "The file is not a jpg/gif/png file, or is larger than 20mb. Please try again.";
}
$capcount = $capcount+1;
}
try {
$dbo = new PDO('mysql:host=localhost;dbname='.$dbname, $dbuser, $dbpass);
$dbo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$q = $dbo->prepare("UPDATE `soldier_info` SET `soldier_images`= :image, `soldier_images_captions`= :captions WHERE `soldier_id`= :id");
$q->execute(array(":image" => $uploaded_images, ":captions" => $uploaded_captions, ":id" => $_POST['soldier_id']));
}catch (PDOException $e) {
$db_error = "Error!: " . $e->getMessage() . "<br/>";
die();
}
}
$query="SELECT * FROM `soldier_info` WHERE `soldier_id` = " . $_POST['soldier_id'] ;
foreach ($dbo->query($query) as $row) {
$firstname = $row['firstname'];
$surname = $row['surname'];
$yearofbirth = $row['yearofbirth'];
$dateofdeath = date("d/m/Y", strtotime($row['dateofdeath']));
$ageatdeath = $row['ageatdeath'];
$regiment = $row['regiment'];
$battallion_brigade = $row['battallion_brigade'];
$Coybty = $row['Coy/bty'];
$rank = $row['rank'];
$solider_number = $row['soldier_number'];
$Next_of_Kin = $row['Next_of_Kin'];
$CWGC = $row['CWGC'];
$Place_Died = $row['Place_Died'];
$Connection_to_Wymeswold = $row['Connection_to_Wymeswold'];
$Cemetery = $row['Cemetery'];
$LRoH = $row['LRoH'];
$Grave = $row['Grave'];
$Memorial = $row['Memorial'];
$Pier_Face = $row['Pier_Face'];
$Other_Mem = $row['Other_Mem'];
$Other_Details = $row['Other_Details'];
$soldier_images = explode(",", $row['soldier_images']);
$soldier_images_captions = explode("--", $row['soldier_images_captions']);
}
$dbo = null;
?>
这不是现在的实时网站，而是在测试/ dev中。然而，我看到的问题是，所有查询都在运行，但页面加载就像select先运行一样（我的意思是返回的记录是处理更新之前的记录。我可以强制选择最后运行以便获取最新记录？
答案 0 :(得分：0)
我认为您在最后一次选择时获得了“原始”数据，因为您在不同的连接上运行查询。因此，它们将存在于隔离的事务中，在最后一次选择运行时可能无法正确提交。
如果你在同一个PDO对象中运行它们，我认为它会起作用。
（如果您使用POST参数并将它们连接到SQL中，您的服务器将被黑客攻击。这只是一个时间问题，您可以在此处找到供所有人查看的URL。）