Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 37810921 bytes) code example

Example 1: PHP Fatal error: Allowed memory size of 134217728 bytes exhausted

memory_limit = 64M;

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