# php ~/phpinfo.php | grep php.ini
Configure Command =>  './configure' '--with-apxs2=/usr/sbin/apxs' '--with-mysqli=/usr/bin/mysql_config' '--with-mysql=/usr/share/mysql' '--enable-so' '--enable-memory-limit' '--with-config-file-path=/etc/php.d/php.ini'
Configuration File (php.ini) Path => /etc/php.d/php.ini

# cat /etc/php.d/php.ini | grep memory
memory_limit = 24M      ; Maximum amount of memory a script may consume (8MB)
; If this parameter is set to Off, then memory leaks will not be shown (on
; keeping them in memory.

# php ~/phpinfo.php | grep memory
Configure Command =>  './configure' '--with-apxs2=/usr/sbin/apxs' '--with-mysqli=/usr/bin/mysql_config' '--with-mysql=/usr/share/mysql' '--enable-so' '--enable-memory-limit' '--with-config-file-path=/etc/php.d/php.ini'
memory_limit => 8M => 8M