Allowed memory size of 167772160 bytes exhausted (tried to allocate 48 bytes) code example
Example 1: Allowed memory size of 1610612736 bytes exhausted
export COMPOSER_MEMORY_LIMIT=-1
Example 2: PHP Fatal error: Allowed memory size of 1610612736 bytes exhausted (tried to allocate 4096 bytes)
php -d memory_limit=-1 /usr/local/bin/composer install