Doc #76957 [Opn->Nab]: Missing values in $_SERVER

Edit report at https://bugs.php.net/bug.php?id=76957&edit=1 ID: 76957 Updated by: cmb@php.net Reported by: office at vargapeter dot net Summary: Missing values in $_SERVER -Status: Open +Status: Not a bug Type: Documentation Problem Package: CGI/CLI related Operating System: Any Linux PHP Version: 7.2.10 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. Previous Comments: ------------------------------------------------------------------------ [2018-10-02 08:54:42] gabri dot ns at gmail dot com HOSTNAME is shell variabel. when you are running php from web, almost all shell variable were stripped. ------------------------------------------------------------------------ [2018-10-02 08:36:20] office at vargapeter dot net Sorry! I meant HOSTNAME not HOST. I apologize for the confusion! So HOSTNAME is missing. ------------------------------------------------------------------------ [2018-10-02 08:32:42] office at vargapeter dot net Good question. How can I check it? ------------------------------------------------------------------------ [2018-10-01 19:08:40] requinix@php.net I don't believe PHP is creating a "HOST" value. Are you sure you aren't inheriting that from an exported environment variable? ------------------------------------------------------------------------ [2018-10-01 18:05:40] office at vargapeter dot net Description: ------------ 1) When executing 'php -c /path-to-ini-file /path/exec.php' via the system() function in the Apache module the script 'exec.php' doesn't have HOST value in $_SERVER. Running in the OS command line 'php -c /path-to-ini-file /path/exec.php' $_SERVER has HOST value. I consider it inconsistent for the HOST value which is in both cases known. 2) $_SERVER is more or less exactly the section Environment from phpinfo() function when running via system() in a browser tab. This behavior is nowhere documented and fairly surprising. Test script: --------------- foo.php - calling in a browser tab: <?php system("php -c /etc/php7/cli/php.ini /path/exec.php"); ?> exec.php - called a) via system() or directly from command line: <?php print_r($_SERVER); ?> Expected result: ---------------- From command line AND via system() in Browser tab: Array ( ... [HOST] => MY_HOST <---- MISSING [_] => /usr/bin/php [PHP_SELF] => /path/exec.php [SCRIPT_NAME] => /path/exec.php [SCRIPT_FILENAME] => /path/exec.php [PATH_TRANSLATED] => /path/exec.php [DOCUMENT_ROOT] => [REQUEST_TIME_FLOAT] => 1538415804.9271 [REQUEST_TIME] => 1538415804 [argv] => Array ( [0] => /path/exec.php ) [argc] => 1 ) Actual result: -------------- Totally different output; even running exec.php as PHP CLI version. No HOST entry. This is the output from system() in a browser tab: Array ( [APACHE_CONF_INCLUDE_FILES] => [mpm_found] => true [APACHE_CONF_INCLUDE_DIRS] => [SYSCONFIG_FILE] => /etc/sysconfig/apache2 [APACHE_START_TIMEOUT] => 2 [HTTPD_MODULE_IDS] => actions_module alias_module ... [APACHE_SERVERNAME] => [PATH] => /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin [APACHE_HTTPD_CONF] => [PWD] => /userdata/dev1/faewe.technology [APACHE_SERVERTOKENS] => ProductOnly [NOTIFY_SOCKET] => /run/systemd/notify [APACHE_SERVERADMIN] => [HTTPD_MODULE_PATHS] => /usr/lib64/apache2-prefork/mod_actions.so ... [SHLVL] => 1 [APACHE_ACCESS_LOG] => /var/log/apache2/access_log combined [LC_CTYPE] => en_US.UTF-8 [APACHE_LOGLEVEL] => warn [APACHE_USE_CANONICAL_NAME] => off [APACHE_EXTENDED_STATUS] => off [APACHE_MODULES] => actions ... php7 [APACHE_SERVER_FLAGS] => [HTTPD_MPM] => prefork [APACHE_SERVERSIGNATURE] => off [sysconfig_loaded] => true [APACHE_MPM] => [OLDPWD] => / [_] => /usr/bin/php [PHP_SELF] => /path/exec.php [SCRIPT_NAME] => /path/exec.php [SCRIPT_FILENAME] => /path/exec.php [PATH_TRANSLATED] => /path/exec.php [DOCUMENT_ROOT] => [REQUEST_TIME_FLOAT] => 1538415816.209 [REQUEST_TIME] => 1538415816 [argv] => Array ( [0] => /path/exec.php ) [argc] => 1 ) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76957&edit=1