question on pecl.ini

Hi, I've been trying to find out this information, can someone tell me, or point me in the right direction for what this file is or does, /opt/cpanel/ea-php54/root/etc/php.d/zzzzzzz-pecl.ini /opt/cpanel/ea-php55/root/etc/php.d/zzzzzzz-pecl.ini /opt/cpanel/ea-php56/root/etc/php.d/zzzzzzz-pecl.ini /opt/cpanel/ea-php70/root/etc/php.d/zzzzzzz-pecl.ini /opt/cpanel/ea-php71/root/etc/php.d/zzzzzzz-pecl.ini /opt/cpanel/ea-php72/root/etc/php.d/zzzzzzz-pecl.ini /opt/cpanel/ea-php73/root/etc/php.d/zzzzzzz-pecl.ini What does the zzzzzzz part mean or signify? According to this article: there seems to be a difference between pecl.ini and zzzzzzz-pecl.ini Thanks in advanced