Я создаю сайт, на котором будут показаны ночные гуляки, список ночных клубов и событий, происходящих в большом городе. Я пытаюсь создать внутреннюю страницу, где администратор может добавлять клубы и вводить информацию, такую как имя учреждения, местоположение, относительные цены и т. Д. И, конечно, некоторые изображения клуба.Загрузка и хранение нескольких файлов с несколькими файлами в папке и базе данных
В каждом клубе должно быть хотя бы одно изображение, основное изображение. Могут быть дополнительные 5, но они необязательны, т.е. поля базы данных могут быть пустыми.
У меня есть форма, которая выглядит следующим образом:
Establishment Main Photo
TextField: name = "establishment_image"
Establishment Photo 1
TextField: name = "establishment_image"
Establishment Photo 2
TextField: name = "establishment_image"
Establishment Photo 3
TextField: name = "establishment_image"
Establishment Photo 4
TextField: name = "establishment_image"
Establishment Photo 5
TextField: name = "establishment_image"
Его любопытное, как Yahoo Mail придают форму файла. Как вы можете видеть, текстовые поля имеют одно и то же имя текстового поля.
Мне нужно знать, какие изменения мне необходимо внести в мою форму отправки, чтобы иметь возможность: например;
Поместите основной ПОС и оставить другие текстовые поля пустым, Поместите основной рис, рис 1 и 2 и оставить другие текстовые поля пустым, Поместите основной рис, рис 1, 2 и 3 и оставить другие текстовые поля пустыми т.д.
Мой establishment_submit.php выглядит следующим образом:
<?php require_once('../Connections/connections.php'); ?>
<?php //maintain the session
if (!isset($_SESSION))
{
session_start();
}
?>
<?php
//retrieve data from Query String
$establishment_name= $_POST['establishment_name'];
$short_description= $_POST['short_description'];
$long_description= $_POST['long_description'];
$location= $_POST['location'];
$url_link= $_POST['url_link'];
$establishment_address= $_POST['establishment_address'];
$establishment_pricing= $_POST['establishment_pricing'];
$establishment_telephone= $_POST['establishment_telephone'];
$establishment_contact= $_POST['establishment_contact'];
$establishment_email= $_POST['establishment_email'];
$establishment_image = $_FILES['establishment_image']['name'];
//escape User Input to help prevent SQL Injection
$establishment_name= mysql_real_escape_string($establishment_name);
$short_description= mysql_real_escape_string($short_description);
$long_description = mysql_real_escape_string($long_description);
$location= mysql_real_escape_string($location);
$url_link= mysql_real_escape_string($url_link);
$establishment_address= mysql_real_escape_string($establishment_address);
$establishment_pricing= mysql_real_escape_string($establishment_pricing);
$establishment_telephone= mysql_real_escape_string($establishment_telephone);
$establishment_contact= mysql_real_escape_string($establishment_contact);
$establishment_email= mysql_real_escape_string($establishment_email);
$establishment_image= mysql_real_escape_string($establishment_image);
//redirect when successful
$establishmentAddSuccess = "establishment_add_success.php";
?>
<?php
//define a maximum size for the uploaded images
define ("MAX_SIZE","10000");
// note that these dimensions are considered the maximum and are not fixed
// because we have to keep the image ratio intact
//define a maximum size for the uploaded images
define ("LARGE_WIDTH","500");
define ("LARGE_HEIGHT","390");
define ("WIDTH","100"); //set here the width you want your thumbnail to be
define ("HEIGHT","100"); //set here the height you want your thumbnail to be.
// this is the function that will create the appropriately sized images from the upload
// the resize will be done considering the width and height defined, but without deforming the image
function make_largeimage($img_name,$filename,$new_large_w,$new_large_h)
{
//get image extension.
$ext=getExtension($img_name);
//creates the new image using the appropriate function from gd library
if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext))
$src_img=imagecreatefromjpeg($img_name);
if(!strcmp("png",$ext))
$src_img=imagecreatefrompng($img_name);
if(!strcmp("gif",$ext))
$src_img=imagecreatefromgif($img_name);
//gets the dimensions of the image
$old_x=imageSX($src_img);
$old_y=imageSY($src_img);
// next we will calculate the new dimensions for the large image
// the next steps will be taken:
// 1. calculate the ratio by dividing the old dimensions with the new ones
// 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
// and the height will be calculated so the image ratio will not change
// 3. otherwise we will use the height ratio for the image
// as a result, only one of the dimensions will be from the fixed ones
$ratio1_large=$old_x/$new_large_w;
$ratio2_large=$old_y/$new_large_h;
if($ratio1_large>$ratio2_large)
{
$large_w=$new_large_w;
$large_h=$old_y/$ratio1_large;
}else
{
$large_h=$new_large_h;
$large_w=$old_x/$ratio2_large;
}
// we create a new image with the new dimensions
$dst_large_img=ImageCreateTrueColor($large_w,$large_h);
// resize the big image to the newly created one
imagecopyresampled($dst_large_img,$src_img,0,0,0,0,$large_w,$large_h,$old_x,$old_y);
// output the created image to the file. Now we will have the image into the file named by $filename
if(!strcmp("png",$ext))
imagepng($dst_large_img,$filename);
else
imagejpeg($dst_large_img,$filename);
if (!strcmp("gif",$ext))
imagegif($$dst_large_img,$filename);
//destroys source and destination images.
imagedestroy($dst_large_img);
imagedestroy($src_img);
}
function make_thumb($img_name,$filename,$new_w,$new_h)
{
//get image extension.
$ext=getExtension($img_name);
//creates the new image using the appropriate function from gd library
if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext))
$src_img=imagecreatefromjpeg($img_name);
if(!strcmp("png",$ext))
$src_img=imagecreatefrompng($img_name);
if(!strcmp("gif",$ext))
$src_img=imagecreatefromgif($img_name);
//gets the dimmensions of the image
$old_x=imageSX($src_img);
$old_y=imageSY($src_img);
// next we will calculate the new dimensions for the thumbnail image
// the next steps will be taken:
// 1. calculate the ratio by dividing the old dimensions with the new ones
// 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable
// and the height will be calculated so the image ratio will not change
// 3. otherwise we will use the height ratio for the image
// as a result, only one of the dimensions will be from the fixed ones
$ratio1=$old_x/$new_w;
$ratio2=$old_y/$new_h;
if($ratio1>$ratio2)
{
$thumb_w=$new_w;
$thumb_h=$old_y/$ratio1;
}else
{
$thumb_h=$new_h;
$thumb_w=$old_x/$ratio2;
}
// we create a new image with the new dimensions
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);
// resize the big image to the newly created one
imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);
// output the created image to the file. Now we will have the thumbnail into the file named by $filename
if(!strcmp("png",$ext))
imagepng($dst_img,$filename);
else
imagejpeg($dst_img,$filename);
if (!strcmp("gif",$ext))
imagegif($dst_img,$filename);
//destroys source and destination images.
imagedestroy($dst_img);
imagedestroy($src_img);
}
// This function reads the extension of the file.
// It is used to determine if the file is an image by checking the extension.
function getExtension($str)
{
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
// This variable is used as a flag. The value is initialized with 0 (meaning no error found)
//and it will be changed to 1 if an errro occures. If the error occures the file will not be uploaded.
$errors=0;
// if it is not empty
for($i=0;$i<count($_FILES['establishment_image']["name"]);$i++)
{
// get the original name of the file from the clients machine
$filenames = stripslashes($_FILES['establishment_image']['name'][$i]);
// get the extension of the file in a lower case format
$extensions = getExtension($filenames);
$extensions = strtolower($extensions);
// if it is not a known extension, we will suppose it is an error, print an error message
//and will not upload the file, otherwise we continue
if (($extensions != "jpg") && ($extensions != "jpeg") && ($extensions != "png") && ($extensions != "gif"))
{
$warning = ("File extension of an image(s) not allowed");
header("location:establishment_add.php?warning=$warning");
$errors=1;
exit();
}
else
{
// get the size of the image in bytes
// $_FILES[\'image\'][\'tmp_name\'] is the temporary filename of the file in which the uploaded file was stored on the server
$size=getimagesize($_FILES['establishment_image']['tmp_name'][$i]);
$sizekb=filesize($_FILES['establishment_image']['tmp_name'][$i]);
//compare the size with the maxim size we defined and print error if bigger
if ($sizekb > MAX_SIZE*1024)
{
$warning = ("Images have exceeded the size limit of 10MB");
header("location:establishment_add.php?warning=$warning");
$errors=1;
exit();
}
$rand= rand(0, 100000);
//we will give an unique name, for example a random number
$image_name=$rand.'.'.$extension;
//the new name will be containing the full path where the image will be stored (images folder)
$consname="C:/wamp/www/NNL/Administrator/Establishment_Images/".$image_name; //change the image/ section to where you would like the original image to be stored
$consname2="C:/wamp/www/NNL/Administrator/Establishment_Images/Thumbs/".$image_name;
//change the image/thumb to where you would like to store the new created thumbnail of the image
$copied = copy($_FILES['establishment_image']['tmp_name'][$i], $consname);
$copied = copy($_FILES['establishment_image']['tmp_name'][$i], $consname2);
//localhost calling of images
$img_large="../Establishment_Images/".$image_name; //change the image/ section to where you would like the original image to be stored
$img_thumb="../Establishment_Images/Thumbs/".$image_name;
//we verify if the image has been uploaded, and print error instead
if (!$copied) {
$warning = ("Unable to upload image file");
header("location:establishment_add.php?warning=$warning");
$errors=1;
exit();
}else{
// the new large image will be placed in Images/ folder
$imagelarge_name=$consname ;
// call the function that will create the thumbnail. The function will get as parameters
// the image name, the thumbnail name and the width and height desired for the thumbnail
$imagelarge=make_largeimage($consname,$imagelarge_name,LARGE_WIDTH,LARGE_HEIGHT);
// the new thumbnail image will be placed in Images/Thumbs/ folder
$thumb_name=$consname2 ;
// call the function that will create the thumbnail. The function will get as parameters
// the image name, the thumbnail name and the width and height desired for the thumbnail
$thumb=make_thumb($consname,$thumb_name,WIDTH,HEIGHT);
}
}
}
?>
<?php
//If no errors registered, redirect page
if(isset($_POST['Submit']) && !$errors)
{
//insert into database
$query2 = "INSERT INTO establishment(establishment_name,
establishment_short_description,
establishment_long_description,
establishment_address,
establishment_telephone,
establishment_contact,
establishment_email,
location_id,
establishment_pricing,
establishment_url_link,
establishment_mainphoto_url,
establishment_thumb_url)
VALUES
('$establishment_name',
'$short_description',
'$long_description',
'$establishment_address',
'$establishment_telephone',
'$establishment_contact',
'$establishment_email',
'$location',
'$establishment_pricing',
'$url_link',
'$img_large[0]',
'$img_thumb[0]')";
//Execute query
$qry_result2 = mysql_query($query2) or die(mysql_error());
header("Location: " . $establishmentAddSuccess);
}
else
{
$establishment_msg = ("Unable to add establishment");
header("location:establishment_add.php?establishment_msg=$establishment_msg");
exit();
}
?>
Теперь это работало отлично для одного загрузки изображения, но не работает. Я знаю, что мне нужно внести изменения из строки;
for($i=0;$i<count($_FILES['establishment_image']["name"]);$i++)
{
Как сделать эту форму возможным для загрузки нескольких изображений. Буду признателен за любую помощь.
после всего, что вам просто нужно знать, как загрузить несколько изображений? сначала поднимите свои методы поиска на этом сайте. – Yehonatan
@ Yehonatan. Мы не все эксперты здесь. Из прошлого опыта на этом сайте я видел это, если вы не поняли и просто задали общий вопрос: например, как вы загружаете несколько изображений в PHP? вы не можете получить то, что ищете. Мне нравится показывать код, чтобы люди могли точно видеть, что я пытаюсь сделать. Например, для Марка Б. –
Если вы посмотрите в верхнем правом углу этой страницы, вы увидите окно поиска. Введите «загрузить несколько изображений в PHP» и нажмите «Возврат». Проверьте это, 115 страниц результатов. Если это не поможет, продолжайте и напишите подробные вопросы. – Yehonatan