Fatal error: Allowed memory size of 2147483648 bytes exhausted (tried to allocate 18874368 bytes) in phar:///opt/cpanel/composer/bin/composer/src/Composer/Repository/ComposerRepository.php on line 588 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: PHP Fatal error: Allowed memory size of 134217728 bytes exhausted

memory_limit = 64M;