What are the weird bugs in PHP and Apache?

Question

PHP

9:06:15 2017] [error] [client 87.240.173.175] /usr/local/bin/php-cgi-etc: fork: Cannot allocate memory
[Tue Jan 17 19:06:15 2017] [error] [client 87.240.173.175] Premature end of script headers: php
[Tue Jan 17 19:06:18 2017] [error] [client 87.240.173.233] /usr/local/bin/php-cgi-etc: fork: Cannot allocate memory
[Tue Jan 17 19:06:18 2017] [error] [client 87.240.173.233] Premature end of script headers: php
[Tue Jan 17 19:06:18 2017] [error] [client 87.240.173.232] /usr/local/bin/php-cgi-etc: fork: Cannot allocate memory
[Tue Jan 17 19:06:18 2017] [error] [client 87.240.173.232] Premature end of script headers: php
[Tue Jan 17 19:06:19 2017] [error] [client 87.240.160.179] PHP Deprecated:  Automatically populating $HTTP_RAW_POST_DATA is deprecated and will be removed in a future version. To avoid this warning set 'always_populate_raw_post_data' to '-1' in php.ini and use the php://input stream instead. in Unknown on line 0
[Tue Jan 17 19:06:22 2017] [error] [client 87.240.173.179] /usr/local/bin/php-cgi-etc: fork: Cannot allocate memory
[Tue Jan 17 19:06:22 2017] [error] [client 87.240.173.179] Premature end of script headers: php
[Tue Jan 17 19:06:22 2017] [error] [client 87.240.173.160] (12)Cannot allocate memory: couldn't create child process: 12: php
[Tue Jan 17 19:06:22 2017] [error] [client 87.240.173.160] (12)Cannot allocate memory: couldn't spawn child process: /var/www/php-bin/u13720/php
[Tue Jan 17 19:06:23 2017] [error] [client 87.240.173.170] /usr/local/bin/php-cgi-etc: fork: Cannot allocate memory
[Tue Jan 17 19:06:23 2017] [error] [client 87.240.173.170] Premature end of script headers: php
[Tue Jan 17 19:06:24 2017] [error] [client 87.240.160.186] PHP Deprecated:  Automatically populating $HTTP_RAW_POST_DATA is deprecated and will be removed in a future version. To avoid this warning set 'always_populate_raw_post_data' to '-1' in php.ini and use the php://input stream instead. in Unknown on line 0
[Tue Jan 17 19:06:24 2017] [error] [client 87.240.173.221] /usr/local/bin/php-cgi-etc: fork: Cannot allocate memory
[Tue Jan 17 19:06:24 2017] [error] [client 87.240.173.221] Premature end of script headers: php

$HTTP_RAW... I haven't used it for a long time, but I have no idea what kind of fork

Answer 1

have you tried googling? I see a lot of things there, for example , here , here's more and a lot more, basically, as I understand it, the error is often associated with an incorrect version of puff or incorrect setting of restrictions in ini files.