使用表单使用php更新图像问题

当我尝试更新图片时，我的php表单出现了问题，我希望有人能帮助我

表单将更新后的字段提交到数据库，但是图像上载功能在我更新时出现问题，该功能将图像路径保存到数据库并移动图像

当我尝试编辑/更新图像时，表中的所有记录都会被相同的数据覆盖，并且不会保存任何图像

这是我编写的更新脚本：

<?php

//include database connection

include 'includes/db_connect.php';

//check any user action

$action = isset( $_POST['action'] ) ? $_POST['action'] : "";

if($action == "update"){ //if the user hit the update button

//This is the directory where images will be saved 
$target = "images/"; 
$target = $target . basename( $_FILES['profileimage']['name']);
move_uploaded_file($_FILES['profileimage']['tmp_name'], $target);

    //write our update query

$query = "update models
set
name = '".$mysqli->real_escape_string($_POST['name'])."',
artisttype = '".$mysqli->real_escape_string($_POST['artisttype'])."',
residence = '".$mysqli->real_escape_string($_POST['residence'])."',
agerange = '".$mysqli->real_escape_string($_POST['agerange'])."',
complexion = '".$mysqli->real_escape_string($_POST['complexion'])."',
enthnicity = '".$mysqli->real_escape_string($_POST['enthnicity'])."',
haircolor = '".$mysqli->real_escape_string($_POST['haircolor'])."',
hairlength = '".$mysqli->real_escape_string($_POST['hairlength'])."',
eyecolor = '".$mysqli->real_escape_string($_POST['eyecolor'])."',
height = '".$mysqli->real_escape_string($_POST['height'])."',
weight = '".$mysqli->real_escape_string($_POST['weight'])."',
bustsize = '".$mysqli->real_escape_string($_POST['bustsize'])."',
waistsize = '".$mysqli->real_escape_string($_POST['waistsize'])."',
hipsize = '".$mysqli->real_escape_string($_POST['hipsize'])."',
shoesize = '".$mysqli->real_escape_string($_POST['shoesize'])."',
insideleg = '".$mysqli->real_escape_string($_POST['insideleg'])."',
outsideleg = '".$mysqli->real_escape_string($_POST['outsideleg'])."',
dresssize = '".$mysqli->real_escape_string($_POST['dresssize'])."',
profileimage = '".$mysqli->real_escape_string($_FILES['profileimage']['name'])."',
brasize = '".$mysqli->real_escape_string($_POST['brasize'])."'
WHERE id='".$mysqli->real_escape_string($_REQUEST['id'])."'";


//execute the query

if( $mysqli->query($query) ) {

//if updating the record was successful

echo "User was updated.";

}else{

//if unable to update new record

 echo "Database Error: Unable to update record.";

}

}

---

如果您的操作是
更新
，并且用户不更新图像，则仅更新信息。在这种情况下，您必须检查
$\u文件
，如果为空，则不更新图像字段如果用户选择了新图像，则更新图像字段，如

//write our update query

$query = "update models
set
name = '".$mysqli->real_escape_string($_POST['name'])."',
artisttype = '".$mysqli->real_escape_string($_POST['artisttype'])."',
residence = '".$mysqli->real_escape_string($_POST['residence'])."',
agerange = '".$mysqli->real_escape_string($_POST['agerange'])."',
complexion = '".$mysqli->real_escape_string($_POST['complexion'])."',
enthnicity = '".$mysqli->real_escape_string($_POST['enthnicity'])."',
haircolor = '".$mysqli->real_escape_string($_POST['haircolor'])."',
hairlength = '".$mysqli->real_escape_string($_POST['hairlength'])."',
eyecolor = '".$mysqli->real_escape_string($_POST['eyecolor'])."',
height = '".$mysqli->real_escape_string($_POST['height'])."',
weight = '".$mysqli->real_escape_string($_POST['weight'])."',
bustsize = '".$mysqli->real_escape_string($_POST['bustsize'])."',
waistsize = '".$mysqli->real_escape_string($_POST['waistsize'])."',
hipsize = '".$mysqli->real_escape_string($_POST['hipsize'])."',
shoesize = '".$mysqli->real_escape_string($_POST['shoesize'])."',
insideleg = '".$mysqli->real_escape_string($_POST['insideleg'])."',
outsideleg = '".$mysqli->real_escape_string($_POST['outsideleg'])."',
dresssize = '".$mysqli->real_escape_string($_POST['dresssize'])."',    
brasize = '".$mysqli->real_escape_string($_POST['brasize'])."' ";

if(!empty($_FILES['profileimage'])){
 $target = "images/"; 
$target = $target . basename( $_FILES['profileimage']['name']);
move_uploaded_file($_FILES['profileimage']['tmp_name'], $target);
$query.=",profileimage = '".$mysqli->real_escape_string($_FILES['profileimage']['name'])."'";
}

$query.=" WHERE id='".$mysqli->real_escape_string($_REQUEST['id'])."'";

希望对您有所帮助
您应该使用print\r（$\u文件）进行测试；检查是否设置了$\u文件。插入和编辑/更新的表单是否相同？
$query = "update models
set
name = '".$mysqli->real_escape_string($_POST['name'])."',
artisttype = '".$mysqli->real_escape_string($_POST['artisttype'])."',
residence = '".$mysqli->real_escape_string($_POST['residence'])."',
agerange = '".$mysqli->real_escape_string($_POST['agerange'])."',
complexion = '".$mysqli->real_escape_string($_POST['complexion'])."',
enthnicity = '".$mysqli->real_escape_string($_POST['enthnicity'])."',
haircolor = '".$mysqli->real_escape_string($_POST['haircolor'])."',
hairlength = '".$mysqli->real_escape_string($_POST['hairlength'])."',
eyecolor = '".$mysqli->real_escape_string($_POST['eyecolor'])."',
height = '".$mysqli->real_escape_string($_POST['height'])."',
weight = '".$mysqli->real_escape_string($_POST['weight'])."',
bustsize = '".$mysqli->real_escape_string($_POST['bustsize'])."',
waistsize = '".$mysqli->real_escape_string($_POST['waistsize'])."',
hipsize = '".$mysqli->real_escape_string($_POST['hipsize'])."',
shoesize = '".$mysqli->real_escape_string($_POST['shoesize'])."',
insideleg = '".$mysqli->real_escape_string($_POST['insideleg'])."',
outsideleg = '".$mysqli->real_escape_string($_POST['outsideleg'])."',
dresssize = '".$mysqli->real_escape_string($_POST['dresssize'])."',    
brasize = '".$mysqli->real_escape_string($_POST['brasize'])."' ";

if(!empty($_FILES['profileimage'])){
 $target = "images/"; 
$target = $target . basename( $_FILES['profileimage']['name']);
move_uploaded_file($_FILES['profileimage']['tmp_name'], $target);
$query.=",profileimage = '".$mysqli->real_escape_string($_FILES['profileimage']['name'])."'";
}

$query.=" WHERE id='".$mysqli->real_escape_string($_REQUEST['id'])."'";

please use $_POST['id']. save id value in hidden field and use id from $_POST['id'];