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: Fatal error: Allowed memory size of 1610612736 bytes exhausted

Fatal error: Allowed memory size of 1610612736 bytes exhausted

export COMPOSER_MEMORY_LIMIT=-1
and restart composer update

Example 2: Allowed memory size of 1610612736 bytes exhausted (tried to allocate 4096 bytes) laravel

1. Firstly i find which php.ini is working because i was using multiple xampp,
  so using : php --ini
2. after that in that file i updated the memory_limit = -1