Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) php code example
Example 1: 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
Example 2: PHP Fatal error: Allowed memory size of 134217728 bytes exhausted
memory_limit = 64M;