PHP Memory Limit Manager: Set the PHP memory limit and check if is exceeded

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2020-02-10 (4 months ago) RSS 2.0 feedNot yet rated by the usersTotal: 101 All time: 9,363 This week: 291Up
Version License PHP version Categories
php_component_memory 1.0GNU Lesser Genera...5PHP 5, System information, Hardware
Description Author

This package can be used to set the PHP memory limit and check if is exceeded.

It can dynamically set the current PHP script memory usage limit by taking a limit value as parameter in KB, MB and GB.

The package can also set the size of limit buffer, so it can check if the current script memory usage tell the current application that it has reached a given limit that is the current hard memory limit minus that buffer size.

Innovation Award
PHP Programming Innovation award nominee
February 2020
Number 5
PHP has a setting that limits the usage of memory by the current script to avoid that the script uses too much memory and makes the current system unusable.

Applications can also check if the current memory usage is near the configured limit.

This package takes advantage of that possibility to allow applications to execute certain actions or avoid other actions, so the current script does not exceed the current memory limit and terminates abnormally.

Manuel Lemos
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Name: nvb <contact>
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Country: Germany Germany
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All time rank: 1808112 in Germany Germany
Week rank: 616 Up26 in Germany Germany Up
Innovation award
Innovation award
Nominee: 6x

Details

Memory Limit Manager Component for PHP

This free as in freedom component helps you to validate if your script reaches the allowed maximum memory limit.

Furthermore, you can set your own memory limit (as long as it is below the limit in you php.ini).

The build status of the current master branch is tracked by Travis CI: build status Latest stable

The scrutinizer status are: code quality

The versioneye status is: dependencies

Downloads: Downloads this Month

It is also available at openhub.net.

Benefits

  • provides easy setting of memory limit
  • gives you the advantage to add a buffer before reaching the limit to easy up reacting when limit is reached
  • helps you to set the limit in bytes, kilo bytes, mega bytes or giga bytes (same for the buffer)
  • comes with DependentInterface and AwareInterface

Examples

Install

By Hand

mkdir -p vendor/net_bazzline/php_component_memory_limit_manager
cd vendor/net_bazzline/php_component_memory_limit_manager
git clone https://github.com/bazzline/php_component_memory_limit_manager

With Packagist

composer require net_bazzline/php_component_memory_limit_manager:dev-master

Usage

$manager = new Net\Bazzline\Component\MemoryLimitManager\MemoryLimitManager();
$manager->setBufferInMegaBytes(4);
$manager->setLimitInMegaBytes(64);

while (!empty($dataSet)) {
    if ($manager->isLimitReached()) {
        //exit while loop, shutdown process
    } else {
        $data = array_shift($dataSet);
        //work on data set
    }
}

API

Thanks to apigen, the api is available in the document section or online.

History

  • upcomming * @todo * implement way of measure/calculate the amount of memory for next iteration
  • 1.1.0 - released at 27.02.2016 * added dedicated travis integration test for php 7.0 * moved to psr-4 autoloading * removed code coverage * removed dead link * removed dependency to phpmd * updated dependencies
  • 1.0.9 - released at 11.12.2015 * updated dependencies
  • 1.0.8 - released at 18.11.2015 * updated dependencies
  • 1.0.7 - released at 27.08.2015 * updated dependencies
  • 1.0.6 - released at 04.07.2015 * updated dependencies
  • 1.0.5 - released at 22.05.2015 * updated dependencies
  • 1.0.4 - released at 02.08.2015 * updated dependencies * removed dependency to apigen
  • 1.0.3 - released at 31.08.2014 * fixed broken composer.json
  • 1.0.2 - released at 31.08.2014 * added versioneye * added scrutinizer * fixed small bugs * updated dependencies
  • 1.0.1 - released at 27.07.2014 * added missing DependentInterface and AwareInterface
  • 1.0.0 - released at 27.07.2014 * initial commit with examples, unit tests and api documentation

Future Improvements

  • if you have one, create a feature request, fork it (and push it back :-))
  Files folder image Files  
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  Accessible without login HTML file 404.html Doc. Documentation
  Accessible without login HTML file class-Net.Bazzline...umentException.html Doc. Documentation
  Accessible without login HTML file class-Net.Bazzline...ryLimitManager.html Doc. Documentation
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  Accessible without login HTML file class-Net.Bazzline...ndentInterface.html Doc. Documentation
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  Accessible without login Plain text file withReachingLimit.php Example Example script

  Files folder image Files  /  source  
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  Plain text file InvalidArgumentException.php Class Class source
  Plain text file MemoryLimitManager.php Class Class source
  Plain text file MemoryLimitManagerAwareInterface.php Class Class source
  Plain text file MemoryLimitManagerDependentInterface.php Class Class source

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  Plain text file MemoryLimitManagerTest.php Class Class source

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