Allowed memory size of 33554432 bytes exhausted tried to allocate 43148176 bytes in php

Question

This error message is being presented  any suggestions      Allowed memory size of 33554432 bytes exhausted  tried to allocate   43148176 bytes  in php

User · Answer

If you are trying to read a file  that will take up memory in PHP  For instance  if you are trying to open up and read an MP3 file   like  say   data   file  http   mydomain com path sample mp3    it is going to pull it all into memory   As Nelson suggests  you can work to increase your maximum memory limit if you actually need to be using this much memory

User · Answer

I notice many answers just try to increase the amount of memory given to a script which has its place but more often than not it means that something is being too liberal with memory due to an unforseen amount of volume or size  Obviously if your not the author of a script your at the mercy of the author unless your feeling ambitious    The PHP docs even say memory issues are due to  poorly written scripts   It should be mentioned that ini set  memory limit    -1     no limit  can cause server instability as 0 bytes free   bad things  Instead  find a reasonable balance by what your script is trying to do and the amount of available memory on a machine   A better approach  If you are the author of the script  or ambitious  you can debug such memory issues with xdebug  The latest version  2 6 0 - released 2018-01-29  brought back memory profiling that shows you what function calls are consuming large amounts of memory  It exposes issues in the script that are otherwise hard to find  Usually  the inefficiencies are in a loop that isn t expecting the volume it s receiving  but each case will be left as an exercise to the reader     The xdebug documentation is helpful  but it boils down to 3 steps    Install It - Available through apt-get and yum etc  Configure it - xdebug ini  xdebug profiler enable   1  xdebug profiler output dir    where ever  View the profiles in a tool like QCacheGrind  KCacheGrind

User · Answer

I hadn t renewed my hosting and the database was read-only  Joomla needed to write the session and couldn t do it

User · Answer

Your script is using too much memory  This can often happen in PHP if you have a loop that has run out of control and you are creating objects or adding to arrays on each pass of the loop    Check for infinite loops   If that isn t the problem  try and help out PHP by destroying objects that you are finished with by setting them to null  eg   OldVar   null   Check the code where the error actually happens as well  Would you expect that line to be allocating a massive amount of memory  If not  try and figure out what has gone wrong

User · Answer

If you are using a shared hosting  you will not be able to enforce the increment in the php size limit   Just go to your cpanel and upgrade your php version to 7 1 and above then you are good to go

User · Answer

I have faced same problem in php7 2 with laravel 5 6  I just increase the amount of variable memory limit   128M in php ini as my applications demand  It might be 256M 512M 1048M     Now it works fine

User · Answer

Doing    ini set  memory limit    -1      is never good  If you want to read a very large file  it is a best practise to copy it bit by bit  Try the following code for best practise    path    path to file  txt     file   fopen  path   r     len   1024     1MB is reasonable for me  You can choose anything though  but do not make it too big  output   fread   file   len     while   feof  file          output    fread   file   len       fclose  file    echo  Output is       output

User · Answer

I was receiving the same error message after switching to a new theme in Wordpress  PHP was running version 5 3 so I switched to 7 2  That fixed the issue

User · Answer

Here are two simple methods to increase the limit on shared hosting    If you have access to your PHP ini file  change the line in PHP ini If your line shows 32M try 64M  memory limit   64M   Maximum amount of memory a script may consume  64MB  If you don t have access to PHP ini try adding this to an  htaccess file  php value memory limit 64M

User · Answer

We had a similar situation and we tried out given at the top of the answers ini set  memory limit    -1    and everything worked fine  compressed images files greater than 1MB to KBs

User · Answer

ini set  memory limit    -1

User · Answer

Doing    ini set  memory limit    -1      is never good  If you want to read a very large file  it is a best practise to copy it bit by bit  Try the following code for best practise    path    path to file  txt     file   fopen  path   r     len   1024     1MB is reasonable for me  You can choose anything though  but do not make it too big  output   fread   file   len     while   feof  file          output    fread   file   len       fclose  file    echo  Output is       output

User · Answer

If you want to read large files  you should read them bit by bit instead of reading them at once  It   s simple math  If you read a 1 MB large file at once  than at least 1 MB of memory is needed at the same time to hold the data   So you should read them bit by bit using fopen  amp  fread

User · Answer

I had the same issue which running php in command line  Recently  I had changes the php ini file and did a mistake while changing the php ini  This is for php7 0     path to php ini where I made mistake   etc php 7 0 cli php ini   I had set memory limit   256  which means 256 bytes   instead of memory limit   256M  which means 256 Mega bytes         Maximum amount of memory a script may consume  128MB       http   php net memory-limit  memory limit   128M   Once I corrected it  my process started running fine

User · Answer

It is unfortunately easy to program in PHP in a way that consumes memory faster than you realise  Copying strings  arrays and objects instead of using references will do it  though PHP 5 is supposed to do this more automatically than in PHP 4  But dealing with your data set in entirety over several steps is also wasteful compared to processing the smallest logical unit at a time  The classic example is working with large resultsets from a database  most programmers fetch the entire resultset into an array and then loop over it one or more times with foreach    It is much more memory efficient to use a while   loop to fetch and process one row at a time  The same thing applies to processing a file

User · Answer

wordpress users add line    ini set  memory limit    -1     in wp-settings php which you can find in the wordpress installed root folder

User · Answer

I was receiving the same error message after switching to a new theme in Wordpress  PHP was running version 5 3 so I switched to 7 2  That fixed the issue

User · Answer

Run this command in your Magento root directory php -d memory limit 4G bin magento

User · Answer

Your script is using too much memory  This can often happen in PHP if you have a loop that has run out of control and you are creating objects or adding to arrays on each pass of the loop    Check for infinite loops   If that isn t the problem  try and help out PHP by destroying objects that you are finished with by setting them to null  eg   OldVar   null   Check the code where the error actually happens as well  Would you expect that line to be allocating a massive amount of memory  If not  try and figure out what has gone wrong

User · Answer

We had a similar situation and we tried out given at the top of the answers ini set  memory limit    -1    and everything worked fine  compressed images files greater than 1MB to KBs

User · Answer

I had the same issue which running php in command line  Recently  I had changes the php ini file and did a mistake while changing the php ini  This is for php7 0     path to php ini where I made mistake   etc php 7 0 cli php ini   I had set memory limit   256  which means 256 bytes   instead of memory limit   256M  which means 256 Mega bytes         Maximum amount of memory a script may consume  128MB       http   php net memory-limit  memory limit   128M   Once I corrected it  my process started running fine

User · Answer

It is unfortunately easy to program in PHP in a way that consumes memory faster than you realise  Copying strings  arrays and objects instead of using references will do it  though PHP 5 is supposed to do this more automatically than in PHP 4  But dealing with your data set in entirety over several steps is also wasteful compared to processing the smallest logical unit at a time  The classic example is working with large resultsets from a database  most programmers fetch the entire resultset into an array and then loop over it one or more times with foreach    It is much more memory efficient to use a while   loop to fetch and process one row at a time  The same thing applies to processing a file

User · Answer

I notice many answers just try to increase the amount of memory given to a script which has its place but more often than not it means that something is being too liberal with memory due to an unforseen amount of volume or size  Obviously if your not the author of a script your at the mercy of the author unless your feeling ambitious    The PHP docs even say memory issues are due to  poorly written scripts   It should be mentioned that ini set  memory limit    -1     no limit  can cause server instability as 0 bytes free   bad things  Instead  find a reasonable balance by what your script is trying to do and the amount of available memory on a machine   A better approach  If you are the author of the script  or ambitious  you can debug such memory issues with xdebug  The latest version  2 6 0 - released 2018-01-29  brought back memory profiling that shows you what function calls are consuming large amounts of memory  It exposes issues in the script that are otherwise hard to find  Usually  the inefficiencies are in a loop that isn t expecting the volume it s receiving  but each case will be left as an exercise to the reader     The xdebug documentation is helpful  but it boils down to 3 steps    Install It - Available through apt-get and yum etc  Configure it - xdebug ini  xdebug profiler enable   1  xdebug profiler output dir    where ever  View the profiles in a tool like QCacheGrind  KCacheGrind

User · Answer

I was also having the same problem  looked for phpinfo ini  php ini or  htaccess files to no avail  Finally I have looked at some php files  opened them and checked the codes inside for memory  Finally this solution was what I come out with and it worked for me  I was using wordpress  so this solution might only work for wordpress memory size limit problem  My solution  open default-constants php file in  public html wp-includes folder  Open that file with code editor  and find memory settings under wp initial constants scope  or just Ctrl F it to find the word  memory   There you will come over WP MEMORY LIMIT and WP MAX MEMORY LIMIT  Just increase it  it was 64 MB in my case  I increased it to 128 MB and then to 200 MB       Define memory limits  if     defined   WP MEMORY LIMIT            if   false     wp is ini value changeable   memory limit                define   WP MEMORY LIMIT    current limit          elseif   is multisite               define   WP MEMORY LIMIT    200M           else           define   WP MEMORY LIMIT    128M              if     defined   WP MAX MEMORY LIMIT            if   false     wp is ini value changeable   memory limit                define   WP MAX MEMORY LIMIT    current limit          elseif   -1      current limit int     current limit int  gt  268435456      256M                define   WP MAX MEMORY LIMIT    current limit          else           define   WP MAX MEMORY LIMIT    256M               Btw  please don t do the following code  because that s bad practice   ini set  memory limit    -1

User · Answer

It is unfortunately easy to program in PHP in a way that consumes memory faster than you realise  Copying strings  arrays and objects instead of using references will do it  though PHP 5 is supposed to do this more automatically than in PHP 4  But dealing with your data set in entirety over several steps is also wasteful compared to processing the smallest logical unit at a time  The classic example is working with large resultsets from a database  most programmers fetch the entire resultset into an array and then loop over it one or more times with foreach    It is much more memory efficient to use a while   loop to fetch and process one row at a time  The same thing applies to processing a file

User · Answer

ini set  memory limit    -1

User · Answer

Write  ini set  memory limit    -1     in your index php at the top after opening of php tag

User · Answer

You can increase the memory allowed to php script by executing the following line above all the codes in the script   ini set  memory limit   -1       enabled the full memory available    And also de allocate the unwanted variables in the script   Check this php library   Freeing memory with PHP

User · Answer

Your script is using too much memory  This can often happen in PHP if you have a loop that has run out of control and you are creating objects or adding to arrays on each pass of the loop    Check for infinite loops   If that isn t the problem  try and help out PHP by destroying objects that you are finished with by setting them to null  eg   OldVar   null   Check the code where the error actually happens as well  Would you expect that line to be allocating a massive amount of memory  If not  try and figure out what has gone wrong

User · Answer

Run this command in your Magento root directory php -d memory limit 4G bin magento

User · Answer

if you are using laravel then  use this ways   public function getClientsListApi Request  request         print r  request- gt all       for all request       print r  request- gt name     for all name     instead of  public function getClientsListApi Request  request         print r  request      it show error as above mention

User · Answer

Write  ini set  memory limit    -1     in your index php at the top after opening of php tag

User · Answer

If you want to read large files  you should read them bit by bit instead of reading them at once  It   s simple math  If you read a 1 MB large file at once  than at least 1 MB of memory is needed at the same time to hold the data   So you should read them bit by bit using fopen  amp  fread

User · Answer

I have faced same problem in php7 2 with laravel 5 6  I just increase the amount of variable memory limit   128M in php ini as my applications demand  It might be 256M 512M 1048M     Now it works fine

User · Answer

Here are two simple methods to increase the limit on shared hosting    If you have access to your PHP ini file  change the line in PHP ini If your line shows 32M try 64M  memory limit   64M   Maximum amount of memory a script may consume  64MB  If you don t have access to PHP ini try adding this to an  htaccess file  php value memory limit 64M

User · Answer

At last I found the answer  Just add this line before the line where you get error in your php file ini set  memory limit    -1    It will take unlimited memory usage of server  it s working fine  Consider  44M  instead of  -1  for safe memory usage

User · Answer

If you are trying to read a file  that will take up memory in PHP  For instance  if you are trying to open up and read an MP3 file   like  say   data   file  http   mydomain com path sample mp3    it is going to pull it all into memory   As Nelson suggests  you can work to increase your maximum memory limit if you actually need to be using this much memory

User · Answer

If you want to read large files  you should read them bit by bit instead of reading them at once  It   s simple math  If you read a 1 MB large file at once  than at least 1 MB of memory is needed at the same time to hold the data   So you should read them bit by bit using fopen  amp  fread

User · Answer

It is unfortunately easy to program in PHP in a way that consumes memory faster than you realise  Copying strings  arrays and objects instead of using references will do it  though PHP 5 is supposed to do this more automatically than in PHP 4  But dealing with your data set in entirety over several steps is also wasteful compared to processing the smallest logical unit at a time  The classic example is working with large resultsets from a database  most programmers fetch the entire resultset into an array and then loop over it one or more times with foreach    It is much more memory efficient to use a while   loop to fetch and process one row at a time  The same thing applies to processing a file

User · Answer

If you want to read large files  you should read them bit by bit instead of reading them at once  It   s simple math  If you read a 1 MB large file at once  than at least 1 MB of memory is needed at the same time to hold the data   So you should read them bit by bit using fopen  amp  fread

User · Answer

If you are trying to read a file  that will take up memory in PHP  For instance  if you are trying to open up and read an MP3 file   like  say   data   file  http   mydomain com path sample mp3    it is going to pull it all into memory   As Nelson suggests  you can work to increase your maximum memory limit if you actually need to be using this much memory

User · Answer

if you are using laravel then  use this ways   public function getClientsListApi Request  request         print r  request- gt all       for all request       print r  request- gt name     for all name     instead of  public function getClientsListApi Request  request         print r  request      it show error as above mention

User · Answer

I want to share my experience on this issue  Suppose you have a class A and class B  class A       protected  userB       public function   construct              this- gt userB   new B             class B       protected  userA       public function   construct              this- gt userA   new A             this will initiate a chain formation of objects which may be create this kind of issue

User · Answer

At last I found the answer  Just add this line before the line where you get error in your php file ini set  memory limit    -1    It will take unlimited memory usage of server  it s working fine  Consider  44M  instead of  -1  for safe memory usage

User · Answer

I hadn t renewed my hosting and the database was read-only  Joomla needed to write the session and couldn t do it

User · Answer

If you are trying to read a file  that will take up memory in PHP  For instance  if you are trying to open up and read an MP3 file   like  say   data   file  http   mydomain com path sample mp3    it is going to pull it all into memory   As Nelson suggests  you can work to increase your maximum memory limit if you actually need to be using this much memory

User · Answer

wordpress users add line    ini set  memory limit    -1     in wp-settings php which you can find in the wordpress installed root folder

User · Answer

If you are using a shared hosting  you will not be able to enforce the increment in the php size limit   Just go to your cpanel and upgrade your php version to 7 1 and above then you are good to go

User · Answer

Your script is using too much memory  This can often happen in PHP if you have a loop that has run out of control and you are creating objects or adding to arrays on each pass of the loop    Check for infinite loops   If that isn t the problem  try and help out PHP by destroying objects that you are finished with by setting them to null  eg   OldVar   null   Check the code where the error actually happens as well  Would you expect that line to be allocating a massive amount of memory  If not  try and figure out what has gone wrong

User · Answer

At last I found the answer  Just add this line before the line where you get error in your php file ini set  memory limit    -1    It will take unlimited memory usage of server  it s working fine  Consider  44M  instead of  -1  for safe memory usage

User · Answer

I was also having the same problem  looked for phpinfo ini  php ini or  htaccess files to no avail  Finally I have looked at some php files  opened them and checked the codes inside for memory  Finally this solution was what I come out with and it worked for me  I was using wordpress  so this solution might only work for wordpress memory size limit problem  My solution  open default-constants php file in  public html wp-includes folder  Open that file with code editor  and find memory settings under wp initial constants scope  or just Ctrl F it to find the word  memory   There you will come over WP MEMORY LIMIT and WP MAX MEMORY LIMIT  Just increase it  it was 64 MB in my case  I increased it to 128 MB and then to 200 MB       Define memory limits  if     defined   WP MEMORY LIMIT            if   false     wp is ini value changeable   memory limit                define   WP MEMORY LIMIT    current limit          elseif   is multisite               define   WP MEMORY LIMIT    200M           else           define   WP MEMORY LIMIT    128M              if     defined   WP MAX MEMORY LIMIT            if   false     wp is ini value changeable   memory limit                define   WP MAX MEMORY LIMIT    current limit          elseif   -1      current limit int     current limit int  gt  268435456      256M                define   WP MAX MEMORY LIMIT    current limit          else           define   WP MAX MEMORY LIMIT    256M               Btw  please don t do the following code  because that s bad practice   ini set  memory limit    -1

User · Answer

At last I found the answer  Just add this line before the line where you get error in your php file ini set  memory limit    -1    It will take unlimited memory usage of server  it s working fine  Consider  44M  instead of  -1  for safe memory usage

User · Answer

I want to share my experience on this issue  Suppose you have a class A and class B  class A       protected  userB       public function   construct              this- gt userB   new B             class B       protected  userA       public function   construct              this- gt userA   new A             this will initiate a chain formation of objects which may be create this kind of issue

User · Answer

You can increase the memory allowed to php script by executing the following line above all the codes in the script   ini set  memory limit   -1       enabled the full memory available    And also de allocate the unwanted variables in the script   Check this php library   Freeing memory with PHP

[php] Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php

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