composer Fatal error: Allowed memory size of 1610612736 bytes exhausted (tried to allocate 20480 bytes) code example

Example 1: Allowed memory size of 1610612736 bytes exhausted

export COMPOSER_MEMORY_LIMIT=-1

Example 2: 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 3: Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php

ini_set('memory_limit', '-1');