PHP Fatal error: Allowed memory size of 2147483648 bytes exhausted (tried to allocate 4096 bytes) in phar://C:/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) in phar:///usr/local/Cellar/composer/1.9.1/bin/composer/src/Composer/DependencyResolver/Solver.php on line 223 mac

export COMPOSER_MEMORY_LIMIT=-1

Example 3: 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