update images

[erok]

Hi all,

I have two separate images in phpmyadmin database; files on xampp

able to update

first image alone ,

able to update

two images in two rows.

But unable to update if i wanted to update second image alone.

 

<form enctype="multipart/form-data" method="post" action="dakgooduy.php" >

.

.

.

$abc = "SELECT id, type, caption FROM dakimages WHERE pid=".$pid." ORDER BY id" or die();

$rs = mysqli_query($con, $abc) ;

$icount=mysqli_num_rows($rs) ;

for($i=0;$i<$icount;$i++) {

$row=mysqli_fetch_array($rs) ;

$type=$row['type'] ;

$nid= $row['id'] ;

$caption=$row['caption'] ;

echo $nid ;

.

.

I use checkbox value="$nid" to transfer image id to to upload file.

UPDATE:<input type="checkbox" name="up[]" value="<?php echo $nid=$row['id'] ; ?>" />

 

In upload file "dakgooduy.php"

 

$icount = 2 ;

for($i=0;$i<$icount;$i++) {

if (!isset($_POST['up'])) $formOk = false ;

$path = $_FILES['image']['tmp_name'][$i] ;

if (filesize($path) > 2000000 or filesize($path) < 1)

{

$formOk = false; //// something wrong here

echo " form ok false " ;

}

else {

$type = $_FILES['image']['type'][$i] ;

$caption = $_POST['caption'][$i] ;

$nid=$_POST['up'][$i] ;

 

What might cause this problem?

Any conceptual help greatly appreciated

 

[justsomeguy]

What actually is the problem, what happens that is not correct? One thing you should be doing is checking for file upload errors. It will simply tell you if no file was uploaded for a given input.http://php.net/manual/en/features.file-upload.errors.php

[erok]

Hi,

I got the following errors. Sounds like i am able to bring (image id) $nid from the form page to here. Somehow this page does not recognize $nid

I am trying to bring array $nid

Warning: strlen() expects parameter 1 to be string, array given in C:xampphtdocsdakgooduy.php on line 149form ok false

/* line 149 / if (!empty($_POST['up']) && isset($_POST['up']) && (strlen($_POST['up']) <= 3) && !empty($_FILES['image']) && isset($_POST['image']) || isset($_POST['caption']))

{

 

$formOk = true ;

 

.

.

 

Notice: Undefined offset: 1 in C:xampphtdocsdakgooduy.php on line 166NULL

 

/* line 166 / $nid=$_POST['up'][$i] ;

/* line 167 / var_dump($nid) ;

 

I defined $nid= array() ; earlier on the dakgooduy.php

 

Any comment appreciated

[Ingolme]

If $_POST['up'] is an array then you can't use strlen() on it.

 

It looks like $i is 1 and there's no element 1 in the $_POST['up'] array. Where is $i being set?

[erok]

Hi Ingolme

I use checkbox value="$nid" to transfer image id to to upload file.

UPDATE:<input type="checkbox" name="up[]" value="<?php echo $nid=$row['id'] ; ?>" />

so it is coming from checkbox.

[justsomeguy]

So then $_POST['up'] will be an array of checkbox values that were selected. You should start by looping through $_POST['up'] to get each ID value and process the uploaded file from there.

[erok]

" So then $_POST['up'] will be an array of checkbox values that were selected. You should start by looping through $_POST['up'] to get each ID value and process the uploaded file from there. "

if i want to update two pictures i update both of the pictures. If i want to update first picture only i can update first picture only. I can not update second pictures only.

if you look at my first post you can see my codes i m looping through already.

[justsomeguy]

I don't see you looping over $_POST['up'] in your first post.

[erok]

sorry i made it looks like a little bit ambiguous.

following code is part of the for loop on the first post

// use checkbox value="$nid" to transfer image id to to upload file.

UPDATE:<input type="checkbox" name="up[]" value="<?php echo $nid=$row['id'] ; ?>" />

I can updates two images no problem i got following message with var_dump function

string(1) "9" string(2) "10"

when i tried second image only i got following messege

Notice: Undefined offset: 1 in C:xampphtdocsdakgooduy.php on line 166

NULL

[erok]

I got the following message with phpinfo() function

when i tried to update second image. its picture id=2 in database

Apache Environment

REQUEST_METHOD POST

QUERY_STRING no value

REQUEST_URI /dakgooduy.php

SCRIPT_NAME /dakgooduy.php

HTTP Headers Information

HTTP Request Headers

HTTP Request POST /dakgooduy.php HTTP/1.1

Accept text/html, application/xhtml+xml, */*

Referer http://localhost/dakgooduyar.php

PHP Variables

Variable

Value

_REQUEST["title"] NEW HOPE 501

_REQUEST["country"] USA

.

.

_REQUEST["MAX_FILE_SIZE"] 2000000

_REQUEST["caption"] Array

(

[0] => asli 328 211

[1] => bill 328 502

)

_REQUEST["up"] Array

(

[0] => 2

)

_REQUEST["kitchen"] update

_POST["title"] NEW HOPE 501

.

.

_POST["MAX_FILE_SIZE"] 2000000

_POST["caption"] Array

(

[0] => asli 328 211

[1] => bill 328 502

)

_POST["up"] Array

(

[0] => 2

)

_POST["kitchen"] update

_FILES["image"] Array

(

[name] => Array

(

[0] =>

[1] => _70132432_vikingship.jpg

)

[type] => Array

(

[0] =>

[1] => image/jpeg

)

[tmp_name] => Array

(

[0] =>

[1] => C:xampptmpphp5153.tmp

)

[error] => Array

(

[0] => 4

[1] => 0

)

=> Array

(

[0] => 0

[1] => 59725

)

)

[justsomeguy]

If you're getting those errors then you're still not looping over $_POST['up']. Do you understand what I mean when I'm telling you to do that?

[erok]

UPDATE:<input type="checkbox" name="up[]" value="<?php echo $nid=$row['id'] ; ?>" checked />

Now it is working.

Thanks for your support