How to Fix Composer 'Allowed Memory Size Exhausted' Error During Package Installation?

Composer Require Memory Exhaustion: PHP Fatal Error "Allowed Memory Size Exhausted"

Problem:

Attempting to install HWIOAuthBundle using composer require leads to an out-of-memory error:

PHP Fatal error: Allowed memory size of 1610612736 bytes exhausted (tried to allocate 67108864 bytes)

despite increasing the memory_limit in php.ini to 2GB.

Solution:

To resolve this issue, try the following steps:

1. Check Current Memory Limit:

Run the command:

php -r "echo ini_get('memory_limit').PHP_EOL;"

2. Increase Memory Limit in php.ini:

Modify the php.ini file (e.g., /etc/php5/cli/php.ini for Debian-like systems) and set:

memory_limit = -1

3. Use Command-Line Argument:

Use the command-line argument to increase the limit:

php -d memory_limit=-1 composer.phar require hwi/oauth-bundle php-http/guzzle6-adapter php-http/httplug-bundle

4. Get php.ini Location:

To locate loaded php.ini files, run:

php --ini

5. Quick Solution Using Environment Variable:

Set the COMPOSER_MEMORY_LIMIT environment variable:

COMPOSER_MEMORY_LIMIT=-1 composer require hwi/oauth-bundle php-http/guzzle6-adapter php-http/httplug-bundle

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