I'm trying to upload a image of 10 mb size and it is giving me the error:
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to
allocate 19200 bytes)
I've also tried to change into .ini file by making changes as:
upload_max_filesize = 70M
post_max_size = 20M
But it still not working... and giving me the same error... its so frustating what can I do next...
What I'm doing wrong with my code, How can I solve this problem?
It is PHP that is running out of memory. You will need to up the memory_limit option in your php.ini, or use ini_set in your PHP (assuming it is enabled).
Please try:
ini_set("memory_limit","100M");
You currently have a memory limit of 64M (that's what the message is trying to tell you), which is far bigger than the 10 megabyte image. Probably you have a problem elsewhere (inefficient script, infinite loop, infinite recursion?).
Don't read your file into memory. You are using over 64MB in your script which is far more than the 10MB from the image, so you're likely reading the file and copying it around and doing other inefficient stuff. (We can but guess without seeing your code.)
Just copy the file directly from its temporary location into its new desired location with filesystem operations (such as move_uploaded_file).
If you definitely have a need for 64MB for some reason other than merely uploading an image — say, perhaps you're performing complex and costly manipulations on it — then you can change the memory_limit INI option. But this should be a last resort as compared to fixing your code. :)
Your PHP ran out of memory. Instead of raising memory limits, you should seriously think if you could enchant your script so that it takes less memory. For example, instead of reading uploaded file to memory, use only file system actions for it.
Correct syntax to use in your php.ini:
memory_limit = 128M
You can also try to change your script to take less memory
You should at least swap the values you have for "post_max_size" (maximum for the entire post) and "upload_max_filesize" (maximum for each actual file)
one of my script required large memory. and probably because of this I am getting following error
Fatal error: Out of memory (allocated
42729472) (tried to allocate 32 bytes)
I tried to change memory_limit by using ini_set('memory_limit', '256M'); on the top of my page but still I am getting same issues. I also tried ini_set('memory_limit', '512M'); but no luck.
Do you have access to the php.ini file? Then change the memory_limit value there.
You should also analyze your script. Lots of database transactions? Many of them in loops? Lots of loops? Lots of temporary variables? A clever usage of unset can make a huge difference.
Also nice to know: Performance Considerations and Garbage Collection
Edit (a possible answer to your question why memory_limit doesn't work with ini_set)
memory_limit integer This sets the
maximum amount of memory in bytes that
a script is allowed to allocate. This
helps prevent poorly written scripts
for eating up all available memory on
a server. Note that to have no memory
limit, set this directive to -1.
Prior to PHP 5.2.1, in order to use
this directive it had to be enabled at
compile time by using
--enable-memory-limit in the configure line. This compile-time flag was also
required to define the functions
memory_get_usage() and
memory_get_peak_usage() prior to
5.2.1.
When an integer is used, the value is
measured in bytes. Shorthand notation,
as described in this FAQ, may also be
used.
source: php.net
That's crashing after about 42M, which suggests to me that the PHP interpreter didn't get the memo. Try the same ini_set() in a test page with the phpinfo() output and look for the memory limit.
Can you set it in the php.ini file instead?
I was having a similar issue earlier. In my case it was the suhosin patch preventing my script from acquiring more memory.
HI, I upload my php testing script to online vps server just now. The script used to parse a big size XML file(about 4M, 7000Lines). But my IE explorer show the online error message below.
Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 77 bytes) in /var/www/test/result/index.php on line 26
I am sure I already tested the php script on localhost successfully.
Is there any configuration need be enable/modify on my VPS? Such as php.ini or some setting for apache server? I just verified there are about 200M memory usage are avaliable for my VPS. How can I fix this?
......
function startElementHandler ($parser,$name,$attrib){
global $usercount;
global $userdata;
global $state; // Line #26;
//Debug
//print "name is: ".$name."\n";
switch ($name) {
case $name=="_ID" : {
$userdata[$usercount]["first"] = $attrib["FIRST"];
$userdata[$usercount]["last"] = $attrib["LAST"];
$userdata[$usercount]["nick"] = $attrib["NICK"];
$userdata[$usercount]["title"] = $attrib["TITLE"];
break;
}
......
default : {$state=$name;break;}
}
}
Your PHP configuration is limiting PHP to only 16 megabytes of memory. You need to modify the memory_limit configuration directive in php.ini to increase it.
Look for the line in php.ini that looks like this:
memory_limit = 16M
...and change to to a large value (16M = 16 megabytes, you could increase it to something like 64M for 64 megabytes, et cetera). If you can't find any line like that, add it.
If you prefer to only increase it on a per-script basis, you can also use ini_set() to change the value for that script only.
You can also use memory_get_peak_usage() to find out which part of the program is eating your memory.
Use a SAX parser instead of a DOM parser, and you won't run out of memory. DOM occupies 8-10 times the memory that the actual document stream does, whereas SAX has a reasonable constant overhead regardless of document size.
ini_set("memory_limit","XXM");
please notice that some servers prevent this from working (though in a VPS this shouldn't be an issue, it's mostly a web hosting problem).
edit: instead of "XX" write the actual size, such as 128M
Make sure that you have specified the correct acceptable settings for:
file_uploads
upload_max_filesize
max_input_time
memory_limit
max_execution_time
post_max_size
You can call the phpinfo() function to find the location of your php.ini file, it will also tell you the current values for the following settings that you need to modify.
You could use the ini_set function to set some of those values from within your script too.
SEE:
Howto optimize your PHP installation to handle large file uploads.
It is dirty but in some cases with large XML files it is faster to get the values via regular expressions! And if it is a well formatted XML there should be no problem!
pseudo code:
preg_match('+<title>(.*)</title>+', $xml_content, $matches);
var_dump($matches);
for shared hosting put this line to you index.php
ini_set("memory_limit","128M");
I just scaffolded a new module and when I save using the generated form I get:
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 19456 bytes) in /Applications/MAMP/htdocs/ats/lib/vendor/symfony/lib/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Hydrator/Graph.php on line 404
Any ideas why?
symfony is quite greedy for memory, so this sometimes happens. You can increase the memory available to PHP/symfony via php.ini as suggested above:
php.ini:
memory_limit = 128M
128M here is just an example, but one which you might need to evaluate.
because that's the configured memory limit of your php. you may want to find what php.ini it uses from phpinfo() and edit it to give symfony more memory.
The memory_limit is the maximum amount of memory a PHP script is allowed to use. Basically, this is a security configuration option, to ensure you don't have a PHP script that does mad and consumes all the memory of the server -- or worse, that you don't have several PHP script that eat more memory than the server has.
This configuration directive can be set in the php.ini file ; it's the file that sets the configuration of PHP.
To find out where the php.ini file is on your server, you can use the phpinfo() function : somewhere near the top of the output, there should be a "Loaded Configuration File" option.
Which value should be used for memory_limit is an interesting question... In the past, when we were only writting small script, 8MB was generally enough.
Now, with Frameworks, bigger applications structured in layers, ORM, and all that, 8MB is generally not enough (as you obviously noticed) -- I generally set memory_limit to 32M on my production servers, which is almost always enough for my applications, without being too much.
So, in my php.ini file, I have :
memory_limit = 32M
Note : it would be tempting to put a very high value for memory_limit, to just get rid of the problem... But remember that memory_limit is here as a security : you should make sure your server has enough memory to answer several requests at the same time !
I have a bunch of client point of sale (POS) systems that periodically send new sales data to one centralized database, which stores the data into one big database for report generation.
The client POS is based on PHPPOS, and I have implemented a module that uses the standard XML-RPC library to send sales data to the service. The server system is built on CodeIgniter, and uses the XML-RPC and XML-RPCS libraries for the webservice component. Whenever I send a lot of sales data (as little as 50 rows from the sales table, and individual rows from sales_items pertaining to each item within the sale) I get the following error:
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 54 bytes)
128M is the default value in php.ini, but I assume that is a huge number to break. In fact, I have even tried setting this value to 1024M, and all it does is take a longer time to error out.
As for steps I've taken, I've tried disabling all processing on the server-side, and have rigged it to return a canned response regardless of the input. However, I believe the problem lies in the actual sending of the data. I've even tried disabling the maximum script execution time for PHP, and it still errors out.
Changing the memory_limit by ini_set('memory_limit', '-1'); is not a proper solution. Please don't do that.
Your PHP code may have a memory leak somewhere and you are telling the server to just use all the memory that it wants. You wouldn't have fixed the problem at all. If you monitor your server, you will see that it is now probably using up most of the RAM and even swapping to disk.
You should probably try to track down the offending code in your code and fix it.
ini_set('memory_limit', '-1'); overrides the default PHP memory limit.
The correct way is to edit your php.ini file.
Edit memory_limit to your desire value.
As from your question, 128M (which is the default limit) has been exceeded, so there is something seriously wrong with your code as it should not take that much.
If you know why it takes that much and you want to allow it set memory_limit = 512M or higher and you should be good.
The memory allocation for PHP can be adjusted permanently, or temporarily.
Permanently
You can permanently change the PHP memory allocation two ways.
If you have access to your php.ini file, you can edit the value for memory_limit to your desire value.
If you do not have access to your php.ini file (and your webhost allows it), you can override the memory allocation through your .htaccess file. Add php_value memory_limit 128M (or whatever your desired allocation is).
Temporary
You can adjust the memory allocation on the fly from within a PHP file. You simply have the code ini_set('memory_limit', '128M'); (or whatever your desired allocation is). You can remove the memory limit (although machine or instance limits may still apply) by setting the value to "-1".
It's very easy to get memory leaks in a PHP script - especially if you use abstraction, such as an ORM. Try using Xdebug to profile your script and find out where all that memory went.
When adding 22.5 million records into an array with array_push I kept getting "memory exhausted" fatal errors at around 20M records using 4G as the memory limit in file php.ini. To fix this, I added the statement
$old = ini_set('memory_limit', '8192M');
at the top of the file. Now everything is working fine. I do not know if PHP has a memory leak. That is not my job, nor do I care. I just have to get my job done, and this worked.
The program is very simple:
$fh = fopen($myfile);
while (!feof($fh)) {
array_push($file, stripslashes(fgets($fh)));
}
fclose($fh);
The fatal error points to line 3 until I boosted the memory limit, which
eliminated the error.
I kept getting this error, even with memory_limit set in php.ini, and the value reading out correctly with phpinfo().
By changing it from this:
memory_limit=4G
To this:
memory_limit=4096M
This rectified the problem in PHP 7.
You can properly fix this by changing memory_limit on fastcgi/fpm:
$vim /etc/php5/fpm/php.ini
Change memory, like from 128 to 512, see below
; Maximum amount of memory a script may consume (128 MB)
; http://php.net/memory-limit
memory_limit = 128M
to
; Maximum amount of memory a script may consume (128 MB)
; http://php.net/memory-limit
memory_limit = 512M
When you see the above error - especially if the (tried to allocate __ bytes) is a low value, that could be an indicator of an infinite loop, like a function that calls itself with no way out:
function exhaustYourBytes()
{
return exhaustYourBytes();
}
Your site's root directory:
ini_set('memory_limit', '1024M');
After enabling these two lines, it started working:
; Determines the size of the realpath cache to be used by PHP. This value should
; be increased on systems where PHP opens many files to reflect the quantity of
; the file operations performed.
; http://php.net/realpath-cache-size
realpath_cache_size = 16k
; Duration of time, in seconds for which to cache realpath information for a given
; file or directory. For systems with rarely changing files, consider increasing this
; value.
; http://php.net/realpath-cache-ttl
realpath_cache_ttl = 120
Rather than changing the memory_limit value in your php.ini file, if there's a part of your code that could use a lot of memory, you could remove the memory_limit before that section runs, and then replace it after.
$limit = ini_get('memory_limit');
ini_set('memory_limit', -1);
// ... do heavy stuff
ini_set('memory_limit', $limit);
In Drupal 7, you can modify the memory limit in the settings.php file located in your sites/default folder. Around line 260, you'll see this:
ini_set('memory_limit', '128M');
Even if your php.ini settings are high enough, you won't be able to consume more than 128 MB if this isn't set in your Drupal settings.php file.
Change the memory limit in the php.ini file and restart Apache. After the restart, run the phpinfo(); function from any PHP file for a memory_limit change confirmation.
memory_limit = -1
Memory limit -1 means there is no memory limit set. It's now at the maximum.
Just add a ini_set('memory_limit', '-1'); line at the top of your web page.
And you can set your memory as per your need in the place of -1, to 16M, etc..
For Drupal users, this Chris Lane's answer of:
ini_set('memory_limit', '-1');
works but we need to put it just after the opening
<?php
tag in the index.php file in your site's root directory.
PHP 5.3+ allows you to change the memory limit by placing a .user.ini file in the public_html folder.
Simply create the above file and type the following line in it:
memory_limit = 64M
Some cPanel hosts only accept this method.
Crash page?
(It happens when MySQL has to query large rows. By default, memory_limit is set to small, which was safer for the hardware.)
You can check your system existing memory status, before increasing php.ini:
# free -m
total used free shared buffers cached
Mem: 64457 63791 666 0 1118 18273
-/+ buffers/cache: 44398 20058
Swap: 1021 0 1021
Here I have increased it as in the following and then do service httpd restart to fix the crash page issue.
# grep memory_limit /etc/php.ini
memory_limit = 512M
For those who are scratching their heads to find out why on earth this little function should cause a memory leak, sometimes by a little mistake, a function starts recursively call itself for ever.
For example, a proxy class that has the same name for a function of the object that is going to proxy it.
class Proxy {
private $actualObject;
public function doSomething() {
return $this->actualObjec->doSomething();
}
}
Sometimes you may forget to bring that little actualObjec member and because the proxy actually has that doSomething method, PHP wouldn't give you any error and for a large class, it could be hidden from the eyes for a couple of minutes to find out why it is leaking the memory.
I had the error below while running on a dataset smaller than had worked previously.
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 4096 bytes) in C:\workspace\image_management.php on line 173
As the search for the fault brought me here, I thought I'd mention that it's not always the technical solutions in previous answers, but something more simple. In my case it was Firefox. Before I ran the program it was already using 1,157 MB.
It turns out that I'd been watching a 50 minute video a bit at a time over a period of days and that messed things up. It's the sort of fix that experts correct without even thinking about it, but for the likes of me it's worth bearing in mind.
In my case on mac (Catalina - Xampp) there was no loaded file so I had to do this first.
sudo cp /etc/php.ini.default /etc/php.ini
sudo nano /etc/php.ini
Then change memory_limit = 512M
Then Restart Apache and check if file loaded
php -i | grep php.ini
Result was
Configuration File (php.ini) Path => /etc
Loaded Configuration File => /etc/php.ini
Finally Check
php -r "echo ini_get('memory_limit').PHP_EOL;"
Using yield might be a solution as well. See Generator syntax.
Instead of changing the PHP.ini file for a bigger memory storage, sometimes implementing a yield inside a loop might fix the issue. What yield does is instead of dumping all the data at once, it reads it one by one, saving a lot of memory usage.
The reason for this error is that your server configuration has a very low memory limit. Try adding this to wp-config.php (put it after <?php in this file):
define('WP_MEMORY_LIMIT', '96M');
Please note that this limit is OK for the theme and the plugins that come with the theme. If you want to enable other plugins you may need to increase the limit further.
define('WP_MEMORY_LIMIT', '256M');
Running the script like this (cron case for example): php5 /pathToScript/info.php produces the same error.
The correct way: php5 -cli /pathToScript/info.php
If you're running a WHM-powered VPS (virtual private server) you may find that you do not have permissions to edit PHP.INI directly; the system must do it. In the WHM host control panel, go to Service Configuration → PHP Configuration Editor and modify memory_limit:
I find it useful when including or requiring _dbconnection.php_ and _functions.php in files that are actually processed, rather than including in the header. Which is included in itself.
So if your header and footer is included, simply include all your functional files before the header is included.
Greetings is a very common problem because if you have very little memory allocated to php and your website is growing will require more resources.
I found myself in a site that had problems that gave error 500 to modify only some products, the problem was that they had used very heavy images in those specific products, solution:
1.- Increase "memory_limit" in php.ini
2.- Lower the weight of the images.
3.- Adapt again "memory_limit" to an acceptable value "512M" at least for me more than enough.
now it is important that you verify that the changes are being made because php apart from having several versions and several types of installations on the server, maybe you modify one and it does not work and this is because you are not modifying the correct php.ini file.
How do you verify that you are modifying the correct file?
In the prestashop dashboard go to advanced settings/information there you can see "Memory limit".
always remember that after making a change in the php.ini file it is advisable to restart apache or Nginx.
Ubuntu: sudo services apache2 restart
IMPORTANT NOTE: Never set the "memory_limit = -1" as many people mention here. The problem is that if you have a problem with a file or module you could be in a continuous loop consuming all the server's memory and processor. Let's take a simple example: a module has an error and makes a call to a function and until it is not positive it keeps calling, this will create an infinite loop and it will never stop doing it because php has no limit.
I hope it helps colleagues who have this problem.
The most common cause of this error message for me is omitting the "++" operator from a PHP "for" statement. This causes the loop to continue forever, no matter how much memory you allow to be used. It is a simple syntax error, yet is difficult for the compiler or runtime system to detect. It is easy for us to correct if we think to look for it!
But suppose you want a general procedure for stopping such a loop early and reporting the error? You can simply instrument each of your loops (or at least the innermost loops) as discussed below.
In some cases such as recursion inside exceptions, set_time_limit fails, and the browser keeps trying to load the PHP output, either with an infinite loop or with the fatal error message which is the topic of this question.
By reducing the allowed allocation size near the beginning of your code you might be able to prevent the fatal error, as discussed in the other answers.
Then you may be left with a program that terminates, but is still difficult to debug.
Whether or not your program terminates, instrument your code by inserting BreakLoop() calls inside your program to gain control and find out what loop or recursion in your program is causing the problem.
The definition of BreakLoop is as follows:
function BreakLoop($MaxRepetitions=500,$LoopSite="unspecified")
{
static $Sites=[];
if (!#$Sites[$LoopSite] || !$MaxRepetitions)
$Sites[$LoopSite]=['n'=>0, 'if'=>0];
if (!$MaxRepetitions)
return;
if (++$Sites[$LoopSite]['n'] >= $MaxRepetitions)
{
$S=debug_backtrace(); // array_reverse
$info=$S[0];
$File=$info['file'];
$Line=$info['line'];
exit("*** Loop for site $LoopSite was interrupted after $MaxRepetitions repetitions. In file $File at line $Line.");
}
} // BreakLoop
The $LoopSite argument can be the name of a function in your code. It isn't really necessary, since the error message you will get will point you to the line containing the BreakLoop() call.
In my case it was a brief issue with the way a function was written. A memory leak can be caused by assigning a new value to a function's input variable, e.g.:
/**
* Memory leak function that illustrates unintentional bad code
* #param $variable - input function that will be assigned a new value
* #return null
**/
function doSomehting($variable){
$variable = 'set value';
// Or
$variable .= 'set value';
}
Increasing the memory_limit fixed the problem. However, I had problems finding the memory limit. I am working on my project directly from live server, so if you're doing the same, on cPanel you can find the memory_limit if you go to Software - MultiPHP INI Editor and select the location. I increased mine from 256M to 512M. You can also find instructions here.