PHP - Img Rotate And Destroy

Hi all,

My session is not destroy even after I have click 'log out'

The user will only log out only when I have closed the browser. May I know what could have caused the problem?
Below is my code

My admin.php page
Code: [Select]
<?php
// For logging out
    if (isset($_SESSION['username'])) {
echo '<a href="admin_logout.php">Log Out (' . $_SESSION['username'] . ')</a>';

// Connect to the database 
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME); 

// Retrieve the user data from MySQL
$query = "SELECT tutor_id, name FROM tutor_profile ORDER BY name ASC";
$data = mysqli_query($dbc, $query);

  
// Loop through the array of user data, formatting it as HTML
echo '<h4>Latest members:</h4>';
echo '<table>';
while ($row = mysqli_fetch_array($data)) {
echo '<td><a href="viewprofile.php?tutor_id=' . $row['tutor_id'] . '">' . $row['name'] . '</a></td></tr>';
}
echo '</table>';

mysqli_close($dbc);
}
else {
echo '<a href="admin_login.php">Log In</a>';
}
?>


My logout.php page
Code: [Select]
<?php
  // If the user is logged in, delete the session vars to log them out
  session_start();
  if (isset($_SESSION['admin_id'])) {
    // Delete the session vars by clearing the $_SESSION array
    $_SESSION = array();

    // Delete the session cookie by setting its expiration to an hour ago (3600)
    if (isset($_COOKIE[session_name()])) {
      setcookie(session_name(), '', time() - 3600);
    }

    // Destroy the session
    session_destroy();
  }

  // Delete the user ID and username cookies by setting their expirations to an hour ago (3600)
  setcookie('admin_id', '', time() - 3600);
  setcookie('username', '', time() - 3600);

  // Redirect to the home page
  $home_url = 'http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']) . '/admin_login.php';
  header('Location: ' . $home_url);
?>

Hello,
How do I get a user's session destroyed when he closes his browser?

Thanks in advance

As my title said the question, i want to destroy my session after a particular time if user is being ideal..
currently i am using this code to define my session:

Code: [Select]

session_start();
// Check, if username session is NOT set then this page will jump to login page
if (!isset($_SESSION['myusername'])) {
header('Location: admin.php');
}

what would be the best way to
automate/force session destroy and cookie erase
i have a facebook iframe, with facebook login which gets the activation token
now the user is not logged out from the login script after he logs out of facebook.

any ideas how to force cookie timeout without a logout button?

im playing with
Code: [Select]
<?php
session_start();

//Global User Object Var
//loggedInUser can be used globally if constructed
if (isset($_SESSION['userCakeUser'])) {
$obj = casttoclass('stdClass', $_SESSION['userCakeUser']);
$_SESSION['userCakeUser'] = $obj;

$_SESSION['start'] = time(); // taking now logged in time
$_SESSION['expire'] = $_SESSION['start'] + (1 * 60) ; // ending a session in 1 minute
}
if(isset($_SESSION["userCakeUser"]) && is_object($_SESSION["userCakeUser"]))
{
$loggedInUser = $_SESSION["userCakeUser"];
}
?>

I am using a WordPress theme that uses some of its own functions besides WP functions.

Let me make clear from the start that when I say "Multiple Checkboxes" in the paragraphs below I am NOT talking about checkboxes that each hold a single value.  I am talking about one Checkbox field that allows multiple values to be selected and puts those values into an array with one Name value and stores the output in a string in a single mysql table field.

Right up front, what I need during the Edit Ad functions is the inbuilt function that will Delete the previous Array of values in any multiple checkbox when the ad is updated. Right now updating the ad works for every situation except NO values selected or for Unchecking all previously selected values in a Multiple Checkbox.  If I have, for example, 4 checkboxes selected and unselect all of them before submitting the edited ad it will return the last saved array of values but not an Empty array with no checkboxes selected.

This theme has a Form Builder with a Custom fields builder used by the admin to create forms for a classified ads website. According to which category of ad the Ad creation procedure will show different forms, with different fields.

I had to manually create the capability to generate multiple checkboxes...so that the different multiple checkboxes when selected and updated to the mysql table might hold a variety of values in a comma-delimited array. That works fine.

When the Ad is edited on its own page, (outside of the Wordpress admin dashboard) the problem is that if a user would uncheck all checkboxes in a particular multiple checkbox then the unselected state does not overwrite the previous array of values. What returns after editing is the previous selected values.

I have tried jquery functions but none of them are working the way I had hoped.

so one type of checkbox might have a hypothetical value like this  "name="cp_checkbox_help[]" and if three options are selected then on submit the value could be--- name="cp_checkbox_help[Sunday,Monday,Tuesday]"

I use implode and explode to store the array as comma separated and retrieve the array for editing or display.

I guess I need to create a Null or empty value as a default that only changes when selections are made.

But, since I use implode and explode to make the array "pretty" I don't know if simply specifying nothing will erase a whole array on update.

Here is some of the code used to see how I get what I get--

This displays the checkboxes that I create and name and fill with different values--


case 'checkbox':
 ?>
<?php 
$options = explode(',', $result->field_values);
 echo '<div id="checkboxes"><table width="100%" border="0" cellspacing="0" cellpadding="5">
  <tr>
    <th colspan="2" scope="col">' . $result->field_label. '</th>
  </tr>';
$myvals= explode(',', $post_meta_val);
foreach ($options as $option) {
 {
 ?> 
              
              <tr>
    <td width="4%"><input style="display:inline-block; float:left;" type="<?php echo $result->field_type; ?>" name="<?php echo $result->field_name; ?>[]" class="checkbox<?php if($result->field_req) echo ' required'?>" id="<?php echo $field_label; ?>" value="<?php echo $option; ?>" <?php foreach ($myvals as $myval)
{ if (in_array($myval, array($option), true)) {echo 'checked="yes"';}}?>/></td>
    <td width="96%"style="vertical-align:top; text-indent: 7px; text-align: left;" ><?php echo $option . '</td>
  </tr> ' ?>   



<?php
             }     } echo '  </tr>
</table></div><div class="clr"></div>';
 break; 



Following is the main part of the code that updates the Ad form--



  // update the ad and return the ad id
    $post_id = wp_update_post($update_ad);



    if($post_id) {

        // now update all the custom fields
        foreach($_POST as $meta_key => $meta_value) {
            if (cp_str_starts_with($meta_key, 'cp_'))
if (cp_str_starts_with($meta_key, 'cp_checkbox_charley'))
$meta_value= implode(',', $_POST['cp_checkbox_charley']);
if (cp_str_starts_with($meta_key, 'cp_checkbox_help'))
$meta_value = implode(',', $_POST['cp_checkbox_help']);
if (cp_str_starts_with($meta_key, 'cp_checkbox_hello'))
$meta_value= implode(',', $_POST['cp_checkbox_hello']);
                //echo $meta_key . ' <--metakey <br/>' . $meta_value . ' <--metavalue<br/><br/>'; // for debugging
                update_post_meta($post_id, $meta_key, $meta_value);
        }

        $errmsg = '<div class="box-yellow"><b>' . __('Your ad has been successfully updated.','cp') . '</b> <a href="' . CP_DASHBOARD_URL . '">' . __('Return to my dashboard','cp') . '</a></div>';

    } else {
        // the ad wasn't updated so throw an error
        $errmsg = '<div class="box-red"><b>' . __('There was an error trying to update your ad.','cp') . '</b></div>';

    }

    return $errmsg;

}

Back on the Edit Ad page this is the Submit


                        <p class="submit center">
                            <input type="button" class="btn_orange" onclick="window.location.href='<?php echo CP_DASHBOARD_URL ?>'" value="<?php _e('Cancel', 'cp')?>" />&nbsp;&nbsp;
                            <input type="submit" class="btn_orange" value="<?php _e('Update Ad &raquo;','cp') ?>" name="submit" />

I have a feeling what I need is just a couple of lines to detect no posted values and then... but if one checkbox array has 6 values in it and another checkbox array has only 3 values, for example, do I need to count each specific checkbox for number of values and then overwrite or will one function completely delete the previous array and its commas?

I would really appreciate some expert assistance here!

Hi,

There are 10 images in a folder called "Images".
All images are named like 1.jpg, 2.jpg, 3.gif, 4.png, and so on...

I am using these images on my website with this link: MyDomain.com/Images/1.jpg
Now what i want to do is change the image every minute.

from 1... to ...10 all images one by one, every minute...

Link should remain same, but it should give different image every time.
and if someone copies my link of image, it still gets changed every minute.

i hope to get some help, better with some example code...

Thanks!

How to do that when you turn 360 degrees no longer come back? Only in this way was?

I have the following code, works rotates the image. But it seems to lose its transparency and add color when rotated to say 45. How can I avoid this?


// File and rotation
$filename = 'placeholder.png';
$degrees = 45;

// Content type
header('Content-type: image/png');

// Load
$source = imagecreatefrompng($filename);


// Rotate
$rotate = imagerotate($source, $degrees, 0);

// Output
imagepng($rotate);
?>

Maybe somebody knows a good way to do this... I have a simple query that seasonal categories - plus one special events header. then for each header I pull all the classes in that category. Right now it just pulls and orders by id. So, regardless of year, they come out in the same order: spring, winter, fall, special events. I'm trying to see if there's a way to make them show in order of relevance to the current time. right now, the "cat" table just has two fields: cat_id, cat_name.

In other words,
in autumn, I want them to order: Autumn, winter, summer, spring - then special events.
In summer, I want them to order: Summer, spring, autumn, winter - then special events.

any thoughts on how to do this? step one, order by relevence to current date. step two, special events is always last.

Code: [Select]
$query1 = "select * from tbl_cat ORDER by cat_id";
$result_cats = mysql_query($query1) or die(mysql_error());


while ($row = mysql_fetch_array($result_cats)) {

$query_selectall = "select *,workshop_date AS tester from tbl_workshops WHERE category={$row['cat_id']} and active_inactive = '1' ORDER by workshop_date";
$result_all = mysql_query($query_selectall) or die(mysql_error());
$catid = $row['cat_id'];

$catname = $row['cat_name'];
echo "<font face='georgia' size=5><b>".$catname." </b></font><br><div style='color:#fff;'>";

while ($c_row = mysql_fetch_array($result_all)){

// rest of code pulls items that match that specific category id.

}      

So whether I am uploading an image through my iphone or sending that image to my computer and uploading it from the computer, it has the same effect. If I upload that image, it'll orient the image in landscape mode.

Having said that, I found a function that can fix the orient issue. The problem is I don't know the proper way to integrate it into the image upload script. I have tried several different ways but they all give me errors. Can you show me where exactly I should use this function?

// IMAGE ORIENTATION 
function getOrientedImage($imagePath) {

	$image = imagecreatefromstring(file_get_contents($imagePath));
	$exif = exif_read_data($imagePath);

	if(!empty($exif['Orientation'])) {
		switch($exif['Orientation']) {

			case 8:
				$image = imagerotate($image,90,0);
				swapHW();
			break;

			case 3:
				$image = imagerotate($image,180,0);
			break;

			case 6:
				$image = imagerotate($image,-90,0);
				swapHW();
			break;
		}
	}
	return $image;
}

// IMAGE UPLOAD SCRIPT
if(isset($_FILES['fileToUpload']) AND !empty($_FILES['fileToUpload']["name"])) {
  if(is_uploaded_file($_FILES['fileToUpload']["tmp_name"])) {

    $target_dir	   = '../members/images/'.$global_user_id.'/projects/'.$url_project_id.'/';
    $target_file   = $target_dir . basename($_FILES["fileToUpload"]["name"]);
    $imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);

    $source_file   = $_FILES["fileToUpload"]["tmp_name"];
    $random_name   = generateRandomString(10);
    $new_image     = $random_name . '.' . $imageFileType;
    $resized_image = compressImage($source_file, $new_image, 50);
    $new_file_path = $target_dir . $resized_image;

    if(!is_dir($target_dir)){
      mkdir($target_dir, 0775, true);
    }

    $uploadOk      = 1;
    // Check if image file is a actual image or fake image
    $check = getimagesize($source_file);
    if($check !== false) {
     //   echo "File is an image - " . $check["mime"] . ".";
        $uploadOk = 1;
    } else {
        $errors[] = 'File is not an image!';
        $uploadOk = 0;
    }
    // Check if file already exists
    if (file_exists($target_file)) {
        $errors[] = 'Sorry, file already exists!';
        $uploadOk = 0;
    }
    // Check file size
    if ($_FILES["fileToUpload"]["size"] > 5000000) {
        $errors[] = 'Sorry, your file size is bigger than 5mb!';
        $uploadOk = 0;
    }
    // Allow certain file formats
    if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg" && $imageFileType != "gif" && $imageFileType != "JPG" && $imageFileType != "PNG" && $imageFileType != "JPEG" && $imageFileType != "GIF") {
        $errors[] = 'Sorry, only JPG, JPEG, PNG & GIF files are allowed!';
        $uploadOk = 0;
    }
    // Check if $uploadOk is set to 0 by an error
    if($uploadOk == 0) {
        $errors[] = 'Sorry, your file was not uploaded!';
    // if everything is ok, try to upload file
    } else {

      if(rename($new_image, $new_file_path)) {

        echo 'success';

      } else {
        $errors[] = 'Sorry, there was an error uploading your file!';
      }
    }
  } else {
    $errors[] = 'You must upload an image!';
  }
}

 

Edited December 23, 2019 by imgrooot

Hi,

I want to create a function that reads the exif orientation data of an image and rotates it as required - needs to run before before the resize function here, I'm using GD library if that is relevant:

function resize_gd($sourceFileName, $folder, $destinationFileName, $newWidth, $newHeight, $keepProportion)
	{
		$newWidth = (int)$newWidth;
		$newHeight = (int)$newHeight;
		if (!$this->gdInfo >= 1 || !$this->checkGdFileType($sourceFileName)) {
			return false;
		}
		$img = &$this->getImg($sourceFileName);
		if ($this->hasError()) {
			return false;
		}
		$srcWidth = ImageSX($img);
		$srcHeight = ImageSY($img);

		if ( $keepProportion && ($newWidth != 0 && $srcWidth<$newWidth) && ($newHeight!=0 && $srcHeight<$newHeight) ) {
			if ($sourceFileName != $folder . $destinationFileName) {
				@copy($sourceFileName, $folder . $destinationFileName);
			}
			return true;
		}
		
		if ($keepProportion == true) {
			if ($newWidth != 0 && $newHeight != 0) {
				$ratioWidth = $srcWidth/$newWidth;
				$ratioHeight = $srcHeight/$newHeight;
				if ($ratioWidth < $ratioHeight) {
					$destWidth = $srcWidth/$ratioHeight;
					$destHeight = $newHeight;
				} else {
					$destWidth = $newWidth;
					$destHeight = $srcHeight/$ratioWidth;
				}
			} else {
				if ($newWidth != 0) {
					$ratioWidth = $srcWidth/$newWidth;
					$destWidth = $newWidth;
					$destHeight = $srcHeight/$ratioWidth;
				} else if ($newHeight != 0) {
					$ratioHeight = $srcHeight/$newHeight;
					$destHeight = $newHeight;
					$destWidth = $srcWidth/$ratioHeight;
				} else {
					$destWidth = $srcWidth;
					$destHeight = $srcHeight;
				}
			}
		} else {
			$destWidth = $newWidth; 
			$destHeight = $newHeight; 
		}
		$destWidth = round($destWidth);
		$destHeight = round($destHeight);
		if ($destWidth < 1) $destWidth = 1;
		if ($destHeight < 1) $destHeight = 1;
		
		$destImage = &$this->getImageCreate($destWidth, $destHeight);

Edited June 7, 2019 by mcfc4heatons

Is there a way to use php to incorporate a folder of pictures as a clickable slideshow.

For instance.... using a pic as a button... to go to the next pic.... except in quantities of 100... without having to manually write the code for each page...?

In HTML:
Code: [Select]
<a href="index3.html"><img src="2.jpg" /></a>
<a href="index4.html"><img src="3.jpg" /></a>
<a href="index5.html"><img src="4.jpg" /></a>
<a href="index6.html"><img src="5.jpg" /></a>
<a href="index7.html"><img src="6.jpg" /></a>
<a href="index8.html"><img src="7.jpg" /></a>
<a href="index9.html"><img src="8.jpg" /></a>
Something like using a basic rotating script activated on mouse click? How do i convert this into a button without making 100 pages?
Code: [Select]
<img src="/path/to/images/
rotate.php?img=my_static_image.jpg" />

I have come up with the rotate.php file as following:

Code: [Select]
<?php


$folder = '/oprah/is/sofuckingfat.com/images/';

$extList = array();
$extList['gif'] = 'image/gif';
$extList['jpg'] = 'image/jpeg';
$extList['jpeg'] = 'image/jpeg';
$extList['png'] = 'image/png';


/* I believe that most of the following can be omitted once it hits the timer / countdown script */

$img = null;

if (substr($folder,-1) != '/') {
$folder = $folder.'/';
}

if (isset($_GET['img'])) {
$imageInfo = pathinfo($_GET['img']);
if (
    isset( $extList[ strtolower( $imageInfo['extension'] ) ] ) &&
        file_exists( $folder.$imageInfo['basename'] )
    ) {
$img = $folder.$imageInfo['basename'];
}
} else {
$fileList = array();
$handle = opendir($folder);
while ( false !== ( $file = readdir($handle) ) ) {
$file_info = pathinfo($file);
if (
    isset( $extList[ strtolower( $file_info['extension'] ) ] )
) {
$fileList[] = $file;
}
}
closedir($handle);

if (count($fileList) > 0) {
$imageNumber = time() % count($fileList);
$img = $folder.$fileList[$imageNumber];
}
}

if ($img!=null) {
$imageInfo = pathinfo($img);
$contentType = 'Content-type: '.$extList[ $imageInfo['extension'] ];
header ($contentType);
readfile($img);
} else {
if ( function_exists('imagecreate') ) {
header ("Content-type: image/png");
$im = @imagecreate (100, 100)
    or die ("Cannot initialize new GD image stream");
$background_color = imagecolorallocate ($im, 255, 255, 255);
$text_color = imagecolorallocate ($im, 0,0,0);
imagestring ($im, 2, 5, 5,  "IMAGE ERROR", $text_color);
imagepng ($im);
imagedestroy($im);
}
}

?>


Would be more or less converting the rotate.php script into the base for the link structure. I assume the timing element in this script would be omitted with a replacement or nothing. I can't figure out what will be the quickest way to go about making the href follow the folder contents. I just want a basic click on the pic to go to the next one until it ends. Thoughts anyone?