Are you seeing an allowed memory size exhausted error message in WordPress?
This is one of the most common WordPress errors, and you can easily fix it by increasing the PHP memory limit in WordPress.
In this article, we will show you how to fix the WordPress memory exhausted error by increasing the PHP memory limit.
What Is the WordPress Memory Exhausted Error?
WordPress is written in PHP, which is a server-side programming language. Additionally, every website needs a WordPress hosting server for it to function properly.
Web servers are just like any other computer. They need a certain amount of memory to efficiently run multiple applications at the same time. Server administrators allocate specific memory sizes to different applications, including PHP.
When your WordPress code requires more memory than the default allocated memory, you will see this error message:
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 2348617 bytes) in /home4/xxx/public_html/wp-includes/plugin.php on line xxx
Your WordPress site may be exhausting its server memory if it has:
- A lot of images, videos, and other types of media
- Plenty of unused WordPress plugins
- Outgrown its hosting plan resources
By default, WordPress automatically tries to increase the PHP memory limit if it is less than 64MB. However, 64MB is often not high enough.
Having said that, let’s see how to easily increase the PHP memory limit in WordPress to avoid the memory exhausted error.
How to Increase the PHP Memory Limit in WordPress
There are several ways to increase the PHP memory limit. One is to edit the wp-config.php file, another is to tweak the .htaccess file, and the last method is to check the php.ini file.
Let’s go through each one:
Editing the wp-config.php File
First, you need to edit the wp-config.php file on your WordPress site. It is one of the core WordPress files located in your WordPress site’s root directory, usually named public_html.
You will need to use an FTP client like FileZilla or file manager in your web hosting control panel.
Next, you need to paste the following line in the wp-config.php file just before the one that says, That's all, stop editing! Happy blogging.
define( 'WP_MEMORY_LIMIT', '256M' );
This code tells WordPress to increase the PHP memory limit to 256MB.
For more details, see our step-by-step guide on how to find and edit the wp-config.php file.
Once you are done, you need to save your changes and upload your wp-config.php file back to your server.
You can now visit your WordPress site, and the memory exhausted error should have disappeared.
Editing the .htaccess File
The next method is to edit the .htaccess file. This file is also located in the WordPress website’s root folder.
Here, you need to paste the following code before the line that says #END WORDPRESS.
php_value memory_limit 256M
Similar to the previous code, it will tell WordPress to increase the PHP memory limit to 256MB.p
After that, simply save your changes and upload the file back to your web server. You can now open your WordPress website again to see if the memory limit error has gone.
If you can’t find the .htaccess file, check out our guide on why the .htaccess file may be missing and how to find it.
Checking Your php.ini File
If the above methods don’t work, you may want to look at your php.ini file.
php.ini is a file that controls your PHP settings, including the PHP version and PHP scripts. It’s not a WordPress core file, as your hosting provider usually manages it.
You can check its code to see your PHP memory usage limit. For more details, you can see our guide on how to find and edit the php.ini file.
However, because this is an advanced method, we recommend contacting your web hosting provider’s support team instead to see if they can increase the WordPress memory limit manually. Otherwise, this can result in further errors.
We hope this article helped you solve the WordPress memory exhausted error by increasing the PHP memory limit. You may also want to see our step-by-step beginner’s guide to troubleshooting WordPress errors, along with our expert picks for the best WordPress plugins to grow your site.
If you liked this article, then please subscribe to our YouTube Channel for WordPress video tutorials. You can also find us on Twitter and Facebook.
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Vennh says
This Worked for me.
/**This is a test for memory*/
define(‘WP_MEMORY_LIMIT’, ’64M’);
Thank you for this wonderful share.
joey says
Thanks for the great and simple help! This solved my issue !
Thumbs up;)
Lu says
Should the memory limit ever be higher than 64M? Most WP sites i’ve worked on the average page load never exceeds 40-5megs. The reason I ask, is I read that the WP_MEMORY_LIMIT defines the amount of memory WordPress can use per Apache thread. Which means that multiple threads will use more and more, and eventually swap to disk which is never good.
Anybody an expert and can answer this?
WPBeginner Staff says
It seems like WordPress is either unable to create wp-config.php file or the file gets deleted after the install. Use ftp to make sure that there is a wp-config.php file present on your site. If not then try creating one by renaming the wp-config-sample.php file to wp-config.php file. You will need to manually edit the file and provide your database information.
Billy says
HI how to resove this error
http://bloggytech.in/wp-admin/install.php
Please visit this URL…it showing this error, after installing it onceagain its showing the same…..Please reply
aiyeboy says
hope i wont be mocked, where do i see the config.php, is it in my phpmyadmin or where pls
WPBeginner Support says
wp-config.php file is usually located in the root folder of your website and can be accessed using FTP client or cPanel file manager.
Admin
aiyeboy says
if i locate it on an ftp, and i click on it, it brings it like a download file, pls help with a full guide on how to do it pls my site is going down everyday…
tony leon says
don’t double click it. Either right click and select EDIT or highlight it and look for an EDIT button somewhere (maybe at the top if it’s Godaddy). Good Luck!
LJ LaValle says
I opened the wp-config.php file from my ftp directory.
I was not sure how to completely enter the adjustment – I didn’t know basic coding for php, so I just copied the basic precursors shown for each entry and added as follows:
/**This is a test for memory*/
define(‘WP_MEMORY_LIMIT’, ’64M’);
It worked!
Ali says
how about i change it to 256 m
Doug says
Thank you!!! This fixed a problem I created myself and saved having to pay someone at the hosting company to update the file.
kim says
I am getting this exact error but I am not sure how to get into do I get into wp-config.php which is located in the root WordPress directory as I don’t know where to find it. Yes I am a complete beginner. Can you help?
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 122880 bytes) in /home/crooked1/public_html/wp-includes/SimplePie/Sanitize.php on line 331
WPBeginner Support says
How to use FTP to upload WordPress.
Admin
mike .levine says
Thank you so much!! For real.. you have been a lifesaver. I can’t tell you how appreciative I am for your help.
Timothy says
Hi,
I’ve tried to increase the limit to 64mb, and I got this warning until 5 times:
‘WARNING: Job restart due to inactivity for more than 5 minutes.’
The database backup is stopped until 60s%, and the result is below when it tried to upload to Dropbox:
‘ERROR: Uploaded file size and local file size don’t match.’
What’s wrong with it? I’m using Bluehost.
Thanks!
PS: I’m not a technical person, so give explanation in details
Thomas Cole says
Been having a doozy of a time working on my site and I would sacrifice a MacBook at midnight to get my site working, one little line of code and we are back up. Thanks!
Domestic Herald says
THANK YOU so much!!!! This worked like a charm and took me less than a minute to implement.
Jonni says
Thank you so much!!!!
I’m in the middle of a launch and all of a sudden I couldn’t update or create any web pages on the whole site because of a 500 Internal Server Error. (And of course this happened as soon as I discovered the Home page had a big problem.)
Could get no help from support, am not a web developer.
Yet I was STILL able to follow your instructions and Hallelujah! Miracle of Miracles! Everything works now.
All this work driving traffic, getting new people to the site – almost wasted due to server error – but Disaster Averted! you saved the day.
My sincerest gratitude.
Again, can’t thank you enough.
bungkelip says
I add define(‘WP_MEMORY_LIMIT’, ‘1024M’); but its not work, help me
Casey Friday says
Thanks so much! I was about to bitch to WooThemes that their $129 extension was breaking my site, but it turned out to be a memory issue. Cheers!
Janelle says
Thanks a million! This is so useful, and more people should see this post.
Adrian says
On line 36/37 of wordpress, wp-config.php you must type:
/** Memory Limit */
define(‘WP_MEMORY_LIMIT’, ’64M’);
For me this problem is solve thi way. You can change 64M with what value you want.
Adam Singer says
This comment is sooo key!
You have to add define( ‘WP_MEMORY_LIMIT’, ’64M’ ); just before the unique key and salts are defined, otherwise the change doesn’t take effect. Thanks!!!
omniafausta says
yesssss thanks, I was wondering why it didn’t work for me. It was because so far no one told me WHERE in the wp-config i had to add this line. THANKS!!!
Rosie Taylor says
Thank you for clarifying this step. Now I know why it never just changing the other line for the value didn’t work before. This saved me big time for a client tonight!
Titel says
Hello,
Today I had a problem with wordpress: after I logged appeared “white screen of death”. We went into cpanel and inserted “define (‘WP_MEMORY_LIMIT’, ’64M ‘)’ in wp-config.php and everything went very well.
Thanks a lot WPBeginner.
Hamza Ahmed says
Thanks a lot, i work very hard with every method i found on internet, but i filled , my problem occur during word-press installation i pasted this code in mid and increase its value to 128 mb , now its works fine, thanks a lot again.
Jeff Danforth says
My host provides 64MB, and wants a hefty kicker to increase the php memory limit – so I’m inclined to be “green” and reduce my memory use.
HOW might I determine what plugins or other things to remove to stay under 64MB
A) php memory consumption, e.g. which plugins are being greedy
B) have I got a memory leak issue, e.g. any plugins being nasty
Thank you for this forum, by the way – I am truly a beginner, but excited about WP (grrr, if I can make it jump its hoops right)
Matthew says
This worked for me, thanks for the tip!
Daniel says
Didn’t work for me, but I’m not sure what it means to be “inside the main php tag”. I opened the file in Dreamweaver and did a search. The word “main” doesn’t appear anywhere on the page. So I put the code in line 2, just after the “<php". Tried it at 64 and 128. Thanks.
Editorial Staff says
The main php tag means just insert it like you did. Sometimes this doesn’t work in which case you have to ask your host.
Admin
Deepanshu says
Thanks for the help.
But 64M was already default for me and of course it wasn’t sufficient so I changed it to 96M and I think u should mention this as well.
Jan says
Nice but nothing works – use rackspace cloud – tried 32 – 64 – 128 – 256- 512 – 1024Mb MU site i can’t go more up and only in admin i can’t get access after a plugin from wpmudev so guess i have to delete that and try something pro.
Julie Geiger says
worked perfect.. thank you for sharing, tried a few other fixes but all errored out.
Nick says
Thank you for the article. It was a great help
pathik says
its really work,, i had problem of internam server,,, when add new plugine,,, i just increse memomry limit
define(‘WP_MEMORY_LIMIT’, ’64M’);
in wp-admin and problem solved..
tthnaks a lot
Joke van de Fliert says
thanks! for me the provider had to change a setting to increase the memory limit, but that did fix it!
Jennifer Ortiz says
Thanks a million for this! I got the error message right after the WordPress install–I never even had a chance to add a plug-in.:
Fatal error: Allowed memory size of 33554432 bytes exhausted…
All seems to be working fine now.
Timothy Jacobs says
I have tried to do this, but it has not solved the problem. I am on 1&1 hosting and I have tried all the changes, but I still get this error whenever uploading a semi-large picture:
Fatal error: Out of memory (allocated 29884416) (tried to allocate 4096 bytes) in /homepages/21/d258522816/htdocs/TBJFilms/WP/wp-includes/media.php on line 1010
What is your suggestion?
wpbeginner says
@Timothy Jacobs Contact your host. If they refuse to help, then switch.
aidilgoh says
Tried placing this at the end of the wp-config.php and didnt work.
However, placing it on top right after the <?php tag worked. Hooray!
Guy says
Exactly !! thanks a lot – made my day !
Appdunia says
Worked for me only after placing just after php tag. Thanks a lot !
Ahmad Zaruq Spain says
Yes, I used the
I just hope my site doesn't keep crashing on every new plugin install, going to check that now. Thanks to all you geeks out there!
1error_reporting(E_ALL); ini_set(‘display_errors’, 1);
2
3define( ‘WP_DEBUG’, true);I found in a post next to this one and was getting an error by using define(‘WP_MEMORY_LIMIT’, ‘128M’); on the last line of my php-config file. Thanks to this comment I placed it right below <?php tag at the top and now the error report is no longer
PatrickTyrus says
this was a great help, but as you noted it could easily be a plugin, or as someone mentioned it could be a memory leak.
And as others have pointed out, there are memory settings for a reason, some hosts will cut your services if you try to circumvent them.
Is there a way to check on what’s eating memory?
I’ll be searching, but this is something that should be listed under related posts, or as a note and link at the end regarding one of the “numerous solutions for it”. Going for the “simplest one” might get you through the day, but is may not be a good long term solution as it may cover up the real problem and delay the inevitable.
Alexis O'Neill says
Worked for me!! I changed my site language to Spanish and I guess that used up the memory. Added the simple line recommended in the post and voilá!! Back in my admin mode. The really helpful part was “Don’t panic!” because my anxiety level was rising fast.
Thanks ever so much.
Kiu Karakas says
define(‘WP_MEMORY_LIMIT’, ’64M’);
not solved
define(‘WP_MEMORY_LIMIT’, ‘164M’);
solved
THANKS
wpbeginner says
@shally1584 There is no = << in our code. So are you sure that you are pasting our code as an independent function and not as part of something else.
shally1584 says
hi.i tried to adjust memory limit and got this error
‘Parse error: syntax error, unexpected ‘=’ in /home/amanerdm/public_html/beaverealty.com/wp-config.php on line 62′
pls help fix this.thanx.
Luna says
Thank you for this post… I had a couple of category / archive query pages that were throwing this error after I upgraded to WordPress 3.1. I was just about to re-write the queries until I found your post in a Google search.
You saved me a lot of work and headaches
Kdb says
I ended up having to switch hosting companies because I couldn’t get my current one to increase the memory from 32MB to, well, anything more. Pretty sad. Took a bit of hassle to transfer three WordPress sites (and multiple other sites), but it was worth it. My current host offers 128MB and my sites are working SO much better. I can actually add plug-ins.
Richard says
Hello
I tried the fix by adding the line immediately after the opening >php tag (line 1)
define(‘WP_MEMORY_LIMIT’, ’64M’);
It did not work for me BUT
I placed the line with comments for my own use on (as it happens) line 22 and it worked.
I am testing this procedure on a test WP site using Twentyten 1.2 Theme
/home/par*****/public_html/wp-config.php
Line 22 /** WP memory limit Note it does not work when placed immediately after line 1 */
define(‘WP_MEMORY_LIMIT’, ’64M’);
Chris says
This trick doesn’t work for me ever since WP 3.
what I found worked was to create a PHP.INI file in the wp-admin folder with the line:
memory_limit = 128M
(or whatever you want to make it)
Editorial Staff says
Sounds like a host issue rather than WP 3.0 issue. We still have this trick working on our clients.
Admin
Trunks says
This worked for me! Thanks!!!
Create PHP.INI in the wp-admin folder, with the line “memory_limit = 128M;”
I changed all the other methods, and this was the only one that seemed to work.
Don says
Thanks. This worked for me! Nothing else worked until I read your comment. Website host was not overly helpful.
dan says
Brilliant! Thanks!
kdb says
I tried this, but my host limits it to 32 megs. Can anyone recommend a good host for WP, because I’m going to have to change. Thanks!
Editorial Staff says
Look through our list of recommended hosts. You can find it on our homepage.
Admin
phil says
I put that line at the very top of the file (wp-config.php) and it worked!
ayahshiva says
i also got the same warning when i activated too many plugin
Eyl says
I have done the trick but seems like nothing happened. The error keep showing so can you suggest other solutions?
Editorial Staff says
On some hosts, this trick won’t work. So you have to ask (beg) them to increase the PHP Memory Limit. OR get rid of the plugin which is causing it.
Admin
Seth Merrick says
Great article. A brand new plugin that may soon find its way on to this list is Cobalt WP Boost.
Check it out here:
http://frugaltheme.com/about/cobalt-wp-boost-plugin/
It allows blog owners to raise their WordPress Memory Limits with a couple of mouse clicks, as well as showing at-a-glance memory usage information. WordPress keeps its internal memory limit at 32MB, which is fine for a small-time blog; but if you’re trying to add any robust plugins for social networking or ecommerce applications, 32M will not suffice. This problem can only be expected to worsen with the release of 3.0 which, judging from the beta release, will consume a lot more memory itself without upping the 32MB limit.
Chad McCullough says
I just downloaded the plug-in and I’ll give it a try on my test site. Thanks.
W^L+ says
Just remember that if the problem is a memory leak (either in PHP itself or in some library that is used by a plugin), this will merely delay the occurence.
Before you change the memory limits, you should ensure that you’re using the most up-to-date versions of any plugins. Be sure you are running the newest version of WP. If your host offers multiple versions of PHP, be sure you’re using version 5.
Your hosting service may have preset limits on memory usage. If your editing causes you to exceed those limits, your service may be suspended or canceled without warning.
Dunn says
I tried to deactivate the plugins one by one and found out that the Google XML Sitemaps plugin cause problem.
Muhammad Asad says
I would like to try it! Thanks for the trick.
wparena says
I think the better way is to put this limit in wp-setting.php file where this memory limit already described as 32M, just changed that value to 64M.
Chad McCullough says
Thank you, wparena. I’ll try this.
Chad McCullough says
Changing the settings in the wp-settings.php file fixed my 2 week, driving me crazy, issue! Thank you very much!!
-Chad
Editorial Staff says
Yes, but editing the core files is not the best way. You would have to change that every time you update WordPress. The way we share in this article, will save you time.
Admin
Chad McCullough says
I would much rather not modify core files, if possible. Where would I place the line in the wp-config.php file? I’m not sure where the main php table is.
Thanks for the article and the help!
Editorial Staff says
Place it right after the table prefix
Chad McCullough says
That worked. Thanks!
Kate Mag says
Awesome trick. Is that same with PHP memory limit?
Chad McCullough says
I think that this might fix an issue I’ve been having with my site. I just can’t figure out where the main php table is in the wp-confip.php to place the line.
Thanks!