PHP - What File Size Is Allowed With This Code?

Hi ,

 As you may all have experienced this problem is there way we can non-healthy exit of script ..due to memory problem........???

I got to know..we avoid this......by properly managing our php memory by unset function. remove unusable variables and objects from memory......

Is there any way we can check each time inside the script -to check memory is available  or sleep for some time and check again.......to proceed without exit........

Is there a way to catch this fatal error and take necessary steps to avoid exit........

Thanks,
redfort  :confused:

Rage.

The whole error message reads:
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 16 bytes)

Dunno bout you but that doesn't make sense to me!

Anywho I am constantly getting this error when any PHP variables are stored or anything. I'm guessing thats the case coz its saying the error is on line 6 which is:

$card = rand(1,52);

I tried a search on google but just got confused, is there a simple explanation why this is happening? thanks alot guys

I'm getting a fatal memory error and have been unable to figure out what is causing it. To make it worse, the allowed memory size does not appear to be related in any way to the memory_limit value. Here's the information:

Fatal error: Allowed memory size of 262144 bytes exhausted (tried to allocate 128 bytes) in template.php on line 164
Excerpt from template.php (line 164 is where $max is assigned):
...
else if(isDateType($type) || isTimestampType($type) || isDatetimeType($type))
{
$min = htmlentities($countpost['constraints'][$tablename][$fieldname]['min'], ENT_QUOTES);
$max = htmlentities($countpost['constraints'][$tablename][$fieldname]['max'], ENT_QUOTES);
echo "\t\tFrom: <input name=\"constraints[$tablename][$fieldname][min]\""
." type=text value=\"$min\" onclickXSSCleaned=\"toggleCalendar(this)\" readonly>\n";
echo "\t\tTo: <input name=\"constraints[$tablename][$fieldname][max]\""
." type=text value=\"$max\" onclickXSSCleaned=\"toggleCalendar(this)\" readonly>\n";
}
...

These two lines were included at the top of the script and printed "Base Memory Usage: 473172 Memory Limit: -1":
echo "Base Memory Usage: ". memory_get_usage() ."\n";
echo "Memory Limit: ". ini_get('memory_limit') ."\n";
I also get the same error in a slightly different location:
Fatal error: Allowed memory size of 262144 bytes exhausted (tried to allocate 1 bytes) in template.php on line 153
Excerpt from template.php (line 153 is the simple variable assignment of an empty string):
...
if(!isset($countpost['constraints'][$tablename][$fieldname]['value']))
$countpost['constraints'][$tablename][$fieldname]['value'] = "";
...

If I refresh the page repeatedly, the error will predictably occur at the same place. Once I change any code (even slightly), the location of the error will change to a new location, sometimes into an included file. The size of "tried to allocate X bytes" also changes. The only constant in this whole mess is the allowed memory size (which is ALWAYS 262144, no matter what the actual memory limit is).

I had previously set memory_limit to -1 in the php.ini file, which seems to have no effect on the error. I am not using a .htaccess file. Changing the memory_limit doesn't change the "allowed memory size" whether it's set to 16M, 64M or whatever.

I've restarted apache after each change in php.ini.

I have memory_get_usage in the code several times to watch the memory. There are small changes, and a change of about 300k when I first load another file. The max gets up to 1048576 bytes (memory_get_peak_usage). 1 Mb does not seem very large to me and is much smaller than the memory_limit.

Also, today I wrote a short php script to just use up memory.  This was just to test php and see if my installation is messed up.  It worked just fine and I got up to 128Mb used without encountering the error above.  So it's something in my code.

This is using php 5.3.2, apache2 2.2.14, on Ubuntu 10.04. Any insights would be greatly appreciated.

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 4864 bytes) in /home/a5418385/public_html/scripts/status.php on line 2 What does this mean?

Hi all

My code give this:

<b>Warning</b>:  file_exists(): open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/home/clients/........

I get the tmp folder and check for its existanse and whether it is writeable

$t=sys_get_temp_dir();
writelog("t=$t");
if(file_exists($t)) writelog("t1=YES"); else writelog("t1=NO");
if(is_writable($t)) writelog("t2=YES"); else writelog("t2=NO");

Both gives no which is fine, I can process that. I do it to avoid the output above, but I still get that.

How should I check for allowed paths?

This runs on several systems where I cannot access php.ini or other system stuff.

 

Hello! I have this validation script that seems to work great until I add the size validation. I'm ready to pull my hair out! Can someone tell me what I'm doing wrong?

Code: [Select]
if (isset($_POST['Submit'])) {
$user_id = $userdata[user_id];
    $number_of_file_fields = 0;
    $number_of_uploaded_files = 0;
    $number_of_moved_files = 0;
    $uploaded_files = array();
$max_filesize = 5242880; // Maximum filesize in BYTES (currently 5MB).
    $upload_directory = dirname(__file__) . '/'.$user_id.'/'; //set upload directory
if (!is_dir($upload_directory)) {
    mkdir($upload_directory, 0777, true);
}

    for ($i = 0; $i < count($_FILES['images']['name']); $i++) {
        $number_of_file_fields++;
        if ($_FILES['images']['name'][$i] != '') { //check if file field empty or not
            $number_of_uploaded_files++;
if($_FILES['images']['size'] > $max_filesize){
echo "<b class='red'>Max file size is 5MB.</b><br/>";
$sz = true;
}
$ext = validate_extension($_FILES['images']['name'][$i]);
if (($ext == true) && ($sz == true)){
$uploaded_files[] = $_FILES['images']['name'][$i];
if (move_uploaded_file($_FILES['images']['tmp_name'][$i], $upload_directory . $_FILES['images']['name'][$i])) {
$number_of_moved_files++;
            }
}else { echo "<b class='red'>File extention error. Only .doc, .pdf, .jpg and .gif files are allowed. </b><br/>";
}

        }

    }
if ($number_of_uploaded_files >= 1){
echo "Number of files submitted:<b class='red>".$number_of_uploaded_files."</b><br/>";
echo "Number of successfully uploaded files:<b class='red>".$number_of_moved_files."</b><br/><br/>";
echo "Uploaded File Name(s):<br/>" . implode('<br/>', $uploaded_files);
}


}
As of now it results in every uploaded file returning the error "Max file size is 5MB."

i want to display the size of a file but i round it off to the nearest kb.

I am using...
($_FILES["file"]["size"]/1024/1024)."mb"

i am geting it return something like this....
1.0313243865967mb
and i want it to be more like
1.03mb

any idears???

I need to check a file's size with php and ssh.  Everything I've seen online for remote files uses curl and port 80.  I'll be checking a LAN computer that isn't running a webserver, but is running an SSH server.

How can I do this?

I've tried this:

Code: [Select]
<?php
$tomorrow = date ('n-j-y');
echo system(ssh root@192.168.2.169 ls -lah "/MacRadio X/WMIS Logs/WMIS $tomorrow Log" | awk {print $5});
?>

but it didn't work.  I got a T_VARIAABLE error.  This was the same command I used right from the command line, and it worked.

I'll also need to add a check to the file size, and if it's less than 175K, send me an email...but I'll work on that after I have the first part working.

Thanks!

What's the maximum file size I can upload through a regular form ? If it's server dependant, how do I find out my max ?

I tried to handle a 550MB file (on localhost) - I only wanted to show the filename, but it hung up for about 10secs, then returned nothing.

                                         $file="../myclients/clients/".$company_name."/Download/".$file_name;
                $size = filesize($path); // not working

i try with  function  also

       function formatbytes($file, $type) 
    { 
        switch($type){ 
            case "KB": 
                $filesize = filesize($file) * .0009765625; // bytes to KB 
            break; 
            case "MB": 
                $filesize = (filesize($file) * .0009765625) * .0009765625; // bytes to MB 
            break; 
            case "GB": 
                $filesize = ((filesize($file) * .0009765625) * .0009765625) * .0009765625; // bytes to GB 
            break; 
        } 
        if($filesize <= 0){ 
            return $filesize = 'unknown file size';} 
        else{return round($filesize, 2).' '.$type;} 
    } 

echo formatbytes($file, "KB");



uploaded file size is 488 kb   

but it showing   "unknown file size"

please help me.

Ok so I have someone needing me to write a php page(s) to basically check the current size of a file in a directory and display the current size and max allocated size then create a dynamically changing image to reflect those parameters(i.e. pise chart, bar graph, etc.) all called to an intranet page.

I work at a business where we upload OS images to a server file but that file is only allocated so much space. The problem we are running into is that we do not know when the space is full until all of our uploads fail.   We are attempting to create a visual representation of that space so that we know when to purge the space of the old temporary images.

I dont even know where to start on this .. would someone please point me in the direction of some code that would get me started on building this project? I have exhausted my efforts on Google and other PHP pages.. I am new to PHP so I may already be in over my head but I am adventurous and will try anything.

Thanx in advance 
Khaelyx

I've got a basic form for users on the site to fill out a form and upload a single image which is resized and saved to a directory on the server. I've tried the form numerous times and with images usually under 1MB the form successfully submits, data is queried and the image uploaded is resized and saved. However, recently I tried uploading larger sized images (1.2mb, 2.4mb, 3mb) and the script would seem to break. It wouldn't query any information, save any images, etc.

If you check my code attached, I have errors ready to output at all levels and not even any errors show up. When I hit submit after attempting to upload a larger file usually over 1MB, the page refreshes back to PHP_SELF as if it submitted but returns absolutely no message, alert or error and the form which was on the page is now gone.

I checked my PHP.ini file and my max file size upload is set at 32mb. Is there anything else with file size restrictions that I could be missing that is allowing this script to crash without even sending me any errors?

if(!empty($_POST['submitFeature']))
{
    // set variables
    $featurename = mysql_real_escape_string($_POST['featurename']);
    $featuredesc = mysql_real_escape_string($_POST['featuredesc']);
    $name = mysql_real_escape_string($_POST['name']);
    $email = mysql_real_escape_string($_POST['email']);
    $email2 = mysql_real_escape_string($_POST['email2']);
    $age = mysql_real_escape_string($_POST['age']);
    $city = mysql_real_escape_string($_POST['city']);
    $state = mysql_real_escape_string($_POST['state']);
    $src = $_FILES['featureupload']['tmp_name'];
    $featuresize = $_FILES['featureupload']['size'];
    $limitsize = 1000000;
        

    // 1 - A. REQUIRED FIELDS VERIFICATION
    if(!empty($featurename) && !empty($name) && !empty($email) && !empty($email2) &&  !empty($city) &&  !empty($state) && ($email == $email2) && !empty($_FILES['featureupload']['tmp_name']) && ($featuresize < $limitsize))
    {
        // 2 - A. SANITIZE AND VALIDATE EMAIL
        $email = filter_var($email, FILTER_SANITIZE_EMAIL);
        
        if(!filter_var($email, FILTER_VALIDATE_EMAIL))
        {
            print '
            <ul class="errorlist">
                <li class="alert">Error!</li>
                <li>Invalid Email Address</li>
            </ul>
            ';
        } else 
        {
            
            // 3 - A. VALIDATE IMAGE EXTENSION
            // verify that image uploaded is proper extension
            $fname = strtolower($_FILES['featureupload']['name']); // grab uploaded image's filename and lowercase the extension (ex: .JPG)
            if(preg_match('/[.](jpg)|(gif)|(png)$/', $fname))
            {
                // set image variables
                $path_image = 'submissions/';
                $final_width_of_image = 550;
                $randomappend=rand(0000,9999); // generate random number to append to filename
                $src = $_FILES['featureupload']['tmp_name']; // grab the src for where the image is temporarily held
                $filefull = $randomappend . $fname; // initiate new file name for submission's full image
                $target = $path_image . $filefull; // set variable for submission image's new location with appended name
                
                $path_image_thumb = 'submissions/thumbs/';
                $final_width_of_thumb = 166;
                $final_height_of_thumb = 120;
                $filethumb = $randomappend . $fname; // initiate new file name for submission's thumbnail
                $target_thumb = $path_image_thumb . $filethumb; // set variable for thumbnail's new location with appended name
                
                move_uploaded_file($src, $target);

                if(preg_match('/[.](jpg)$/', $filefull)){
                    $img = imagecreatefromjpeg($path_image . $filefull);
                } else if (preg_match('/[.](gif)$/', $filefull)){
                    $img = imagecreatefromgif($path_image . $filefull);
                } else if (preg_match('/[.](png)$/', $filefull)){
                    $img = imagecreatefrompng($path_image . $filefull);
                }

                // FULL SIZE IMAGE
                $ox = imagesx($img);
                $oy = imagesy($img);
                
                $imgx = $final_width_of_image;
                $imgy = floor($oy * ($final_width_of_image / $ox)); 
                
                $imgm = imagecreatetruecolor($imgx, $imgy); 
                 
                imagecopyresampled($imgm, $img, 0,0,0,0,$imgx,$imgy,$ox,$oy);

                if(!file_exists($path_image)){
                    if(!mkdir($path_image)){
                        die("There was a problem.");
                    } 
                }
                
                imagejpeg($imgm, $path_image . $filefull, 80);
                // END FULL SIZE IMAGE
                
                // THUMBNAIL
                $tox = imagesx($img);
                $toy = imagesy($img);
                
                $tx = $final_width_of_thumb;
                $ty = $final_height_of_thumb; 
                
                $tm = imagecreatetruecolor($tx, $ty); 
                
                imagecopyresampled($tm, $img, 0,0,0,0,$tx,$ty,$tox,$toy); 
                
                if(!file_exists($path_image_thumb)){
                    if(!mkdir($path_image_thumb)){
                        die("There was a problem.");
                    } 
                }
                
                imagejpeg($tm, $path_image_thumb . $filethumb, 80);
                // END THUMBNAIL
                
                    
                // query the actual post forms
                $q = "INSERT INTO submissions (id, name, age, email, city, state, country, featurename, featuredesc, featureimg, featurethumb, postdate, approved) VALUES ('', '$name', '$age', '$email', '$city', '$state', '', '$featurename', '$featuredesc', '$target', '$target_thumb', NOW(), 'NO')";
                $r = mysql_query($q);
                
                if($r)
                {
                    echo '<script language="JavaScript">';
                    echo 'alert("Successfully added a submission.")';
                    echo '</script>'; 
                } else {
                    echo '<script language="JavaScript">';
                    echo 'alert("Submission was not added. Please try again.")';
                    echo '</script>'; 
                }
                
            } else {
                echo '<script language="JavaScript">';
                echo 'alert("Unacceptable image extension.")';
                echo '</script>'; 
            }
            // 3 - B. VALIDATE IMAGE EXTENSION
            
        }
        // 2 - B. END SANITIZE AND VALIDATE EMAIL
        
    // 1 - B. END REQUIRED FIELDS VERIFICATION
    } else {
        print '
        <ul class="errorlist">
            <li class="alert">Please fill out the required fields.</li>
        ';
    
        if (empty($name))
        {
            echo ' <li>* Full Name</li>' . "\n";
            $errorname = 'TRUE';
        } if (empty($email))
        {
            echo ' <li>* Email</li>' . "\n";
            $erroremail = 'TRUE';
        } if (empty($email2))
        {
            echo ' <li>* Confirm Email</li>' . "\n";
            $erroremail2 = 'TRUE';
        } if (empty($city))
        {
            echo ' <li>* City</li>' . "\n";
            $errorcity = 'TRUE';
        } if (empty($state))
        {
            echo ' <li>* State</li>' . "\n";
            $errorstate = 'TRUE';
        } if ($email != $email2)
        {
            echo ' <li>* Emails do not match.</li>' . "\n";
        } if (empty($_FILES['featureupload']['tmp_name']))
        {
            echo ' <li>* You did not upload a feature.</li>' . "\n";
            $errorfile = 'TRUE';
        } if (empty($featurename))
        {
            echo ' <li>* Feature Name</li>' . "\n";
            $errorfeature = 'TRUE';
        } if ($featuresize >= $limitsize)
        {
            echo ' <li>* File size is too large.</li>' . "\n";
        }
        print '
        </ul>
        ';
    }
    // 1 - B. END REQUIRED FIELDS ERROR CODES
    
}

hello
anyone can help me to reduce image file size(reduce quality of images) using php ?

Hi Chaps,

I'm using readfile to force the download of a file:

set_time_limit(0);

$file = 'monkey.gif';

if (file_exists($file)) {
    header('Content-Description: File Transfer');
    header('Content-Type: application/octet-stream');
    header('Content-Disposition: attachment; filename='.basename($file));
    header('Content-Transfer-Encoding: binary');
    header('Expires: 0');
    header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
    header('Pragma: public');
    header('Content-Length: ' . filesize($file));
    ob_clean();
    flush();
    readfile($file);
    exit;
}
flush();


And this works fine, however, I do have some software installation files that could be downloaded (these are in excess of 280Mb).
I have checked php.ini:
Quote

memory_limit = 128M
post_max_size = 300M


But Internet Explorer hangs and then crashes.
Is there a way to allow big files to download using this method, or is there another way of forcing the download, without php 'reading' the file first?
I'm guessing that the problem lies with the memory_limit being smaller than the file size. Is it a good idea to increase the memory_limit to eg. 280Mb?
Cheers

I have a simple script which records search terms and writes them to an external file. I would like to limit this file size.

The Use:
I have a search page where people can search for PDF files. I would like to have a 'cloud tag' or list of the most recent terms searched at the bottom of the page.

Here is my script which works beautifully:

<?php

$pattern = "/filetype:(\w+)/";   // filteype:(wildcard for word) to grab the file extension along with the word filetype:

if ( $_GET['q'] == "" ) {
$term = "";
} else {
       $term = preg_replace("$pattern", '', $_GET['q']); // get rid of the filetype parameter
}

$searched = $term . ", ";
$fopen = fopen("searched.html", "a");
fwrite($fopen, $searched);
fclose($fopen);
?>


The above code grabs the search term when the SERP page is opened, and writes it to a file. I will later use phpInclude to put the contents of that file on the bottom of my search engine page.

The problem is that after a million searches, this file will be huge!

Question:
How can I limit the file size and organize these search terms so that the most recent ones appear on the page?