PHP Fatal error: Allowed memory size of 1610612736 bytes exhausted (tried to allocate 4096 bytes) in phar:///usr/local/psa/var/modules/composer/composer.phar/src/Composer/DependencyResolver/RuleWatchGraph.php on line 52 code example

Example 1: Allowed memory size of 1610612736 bytes exhausted

export COMPOSER_MEMORY_LIMIT=-1

Example 2: how to fix PHP Fatal error: Allowed memory size of 1610612736 bytes exhausted

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