ini set memory limit in PHP 5 3 3 is not working at all

Question

I had this working before     echo ini get  memory limit     n   ini set  memory limit   256M    echo ini get  memory limit     n     That would input this     32M 256M   on a php script executed by command line  I updated from 5 2 to 5 3  and from now  this directive is not working at all    this gives me     32M 32M   and then make my script fail with a fatal Error     I checked the php documentation  and googled it  and I didn t find anywhere that  memory limit  had been deprecated    Does anyone have a solution

User · Answer

Here s a list of things that are worth checking   Is Suhosin installed    How to check whether Suhosin is installed    ini set   The format is important  ini set  memory limit    512            DIDN T WORK ini set  memory limit    512MB          DIDN T WORK ini set  memory limit    512M           OK - 512MB ini set  memory limit   512000000       OK - 512MB       When an integer is used  the value is measured in bytes  Shorthand   notation  as described in this FAQ  may also be used    http   php net manual en ini core php ini memory-limit   Has php admin value been used in  htaccess or virtualhost files       Sets the value of the specified directive  This can not be used in    htaccess files  Any directive type set with php admin value can not   be overridden by  htaccess or ini set    To clear a previously set   value use none as the value    http   php net manual en configuration changes php

User · Answer

Let s do a test with 2 examples        lt  php          memory    int ini get  memory limit       Display your current value in php ini  for example  64M      echo  original memory     memory   lt br gt        ini set  memory limit   128M       Try to override the memory limit for this script     echo  new memory    memory               Will display         original memory  64        new memory  64       gt    The above example doesn t work for overriding the memory limit value  But This will work        lt  php      memory    int ini get  memory limit       get the current value     ini set  memory limit   128       override the value     echo  original memory     memory   lt br gt       echo the original value      new memory    int ini get  memory limit       get the new value     echo  new memory     new memory      echo the new value        Will display         original memory  64        new memory  128       gt    You have to place the ini set  memory limit   128M    at the top of the file or at least before any echo   As for me  suhosin wasn t the solution because it doesn t even appear in my phpinfo    but this worked        lt  php     ini set  memory limit   2048M       set at the top of the file                 gt

User · Answer

If you have the suhosin extension enabled  it can prevent scripts from setting the memory limit beyond what it started with or some defined cap   http   www hardened-php net suhosin configuration html suhosin memory limit

User · Answer

Works for me  has nothing to do with PHP 5 3  Just like many such options it cannot be overriden via ini set   when safe mode is enabled  Check your updated php ini  and better yet  change the memory limit there too

User · Answer

Ubuntu 10 04 comes with the Suhosin patch only  which does not give you configuration options  But you can install php5-suhosin to solve this   apt-get update apt-get install php5-suhosin   Now you can edit  etc php5 conf d suhosin ini and set   suhosin memory limit   1G   Then using ini set will work in a script   ini set  memory limit    256M

User · Answer

Most likely your sushosin updated  which changed the default of suhosin memory limit from disabled to 0  which won t allow any updates to memory limit    On Debian  change  etc php5 conf d suhosin ini       suhosin memory limit   0   to      suhosin memory limit   2G   Or whichever value you are comfortable with  You can find the changelog of Sushosin at http   www hardened-php net hphp changelog html  which says      Changed the way the memory limit protection is implemented

[php] ini_set("memory_limit") in PHP 5.3.3 is not working at all

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