From: robin at willowsv dot com
Operating system: Windows 7
PHP version: 7.1.2
Package: Variables related
Bug Type: Bug
Bug description:PHP periodically failing to populate superglobals
Description:
------------
Periodically PHP will periodically fail to populate the $_COOKIE Super
global.
The logs will report that _COOKIE is undefined if you check it
(depending on the reporting level) and if it's set first it will behave
like a non superglobal with normal variable scope.
A restart of the Apache/PHP server corrects the issue however it hits
sporadically and refused to allow us to sign in. $_SERVER reports cookie
data is available.
Test script:
---------------
<?php
echo("Dumping Server!\n"); print_r($_SERVER);
echo("\n\nDumping Cookie!\n"); print_r($_COOKIE);
// Set Value
echo("\n\nSetting Cookie!\n"); $_COOKIE['TEST'] = "TEST";
print_r($_COOKIE);
// Echo
echo("\n\nTest 1!\n"); test();
echo("\n\nTest 2!\n"); test2();
// Test Function 1 (No Global)
function test() {
if ( empty($_COOKIE) )
echo("Can't find cookie superglobal!\n");
}
else {
echo("Dumping Cookie!\n");
print_r($_COOKIE);
}
}
// Test Function 2 (No Global)
function test2() {
global $_COOKIE;
if ( empty($_COOKIE) ) {
echo("Can't find cookie superglobal!");
}
else {
echo("Dumping Cookie!\n");
print_r($_COOKIE);
}
}
?>
Expected result:
----------------
Dumping Server!
Array
(
[HTTPS] => on
[SSL_SESSION_RESUMED] => Initial
[HTTP_HOST] => 10.224.130.232
[HTTP_CONNECTION] => keep-alive
[HTTP_CACHE_CONTROL] => max-age=0
[HTTP_UPGRADE_INSECURE_REQUESTS] => 1
[HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 10.0; WOW64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87
Safari/537.36
[HTTP_ACCEPT] =>
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
[HTTP_ACCEPT_ENCODING] => gzip, deflate, sdch, br
[HTTP_ACCEPT_LANGUAGE] => en-US,en;q=0.8,en-GB;q=0.6
[HTTP_COOKIE] => CMS=18368a69a2b9b1d7a62918213adcf19d;
SVMCMS=05bfdca9adaf72b52578668069db639f61652476;
PHPSESSID=1b86072d4b839507ae6e7223f3645923
[SystemRoot] => C:\Windows
[COMSPEC] => C:\Windows\system32\cmd.exe
[WINDIR] => C:\Windows
[SERVER_SIGNATURE] =>
[SERVER_SOFTWARE] => Apache/2.4.25 (Win32) OpenSSL/1.0.2k PHP/7.1.2
[SERVER_PORT] => 443
[DOCUMENT_ROOT] => D:/www/httpdocs
[REQUEST_SCHEME] => https
[CONTEXT_PREFIX] =>
[CONTEXT_DOCUMENT_ROOT] => D:/www/httpdocs
[SERVER_ADMIN] => admin@example.com
[SCRIPT_FILENAME] => D:/www/httpdocs/cms/bug.php
[REMOTE_PORT] => 62749
[GATEWAY_INTERFACE] => CGI/1.1
[SERVER_PROTOCOL] => HTTP/1.1
[REQUEST_METHOD] => GET
[QUERY_STRING] =>
[REQUEST_URI] => /cms/bug.php
[SCRIPT_NAME] => /cms/bug.php
[PHP_SELF] => /cms/bug.php
[REQUEST_TIME_FLOAT] => 1488303793.707
[REQUEST_TIME] => 1488303793
[argv] => Array
(
)
[argc] => 0
)
Dumping Cookie!
Array
(
[CMS] => 18368a69a2b9b1d7a62918213adcf19d
[SVMCMS] => 05bfdca9adaf72b52578668069db639f61652476
[PHPSESSID] => 1b86072d4b839507ae6e7223f3645923
)
Setting Cookie!
Array
(
[CMS] => 18368a69a2b9b1d7a62918213adcf19d
[SVMCMS] => 05bfdca9adaf72b52578668069db639f61652476
[PHPSESSID] => 1b86072d4b839507ae6e7223f3645923
[TEST] => TEST
)
Test 1!
Dumping Cookie!
Array
(
[CMS] => 18368a69a2b9b1d7a62918213adcf19d
[SVMCMS] => 05bfdca9adaf72b52578668069db639f61652476
[PHPSESSID] => 1b86072d4b839507ae6e7223f3645923
[TEST] => TEST
)
Test 2!
Dumping Cookie!
Array
(
[CMS] => 18368a69a2b9b1d7a62918213adcf19d
[SVMCMS] => 05bfdca9adaf72b52578668069db639f61652476
[PHPSESSID] => 1b86072d4b839507ae6e7223f3645923
[TEST] => TEST
)
Actual result:
--------------
Dumping Server!
Array
(
[HTTPS] => on
[SSL_SESSION_RESUMED] => Resumed
[HTTP_HOST] => 10.224.130.232
[HTTP_CONNECTION] => keep-alive
[HTTP_CACHE_CONTROL] => max-age=0
[HTTP_UPGRADE_INSECURE_REQUESTS] => 1
[HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 10.0; WOW64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87
Safari/537.36
[HTTP_ACCEPT] =>
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
[HTTP_ACCEPT_ENCODING] => gzip, deflate, sdch, br
[HTTP_ACCEPT_LANGUAGE] => en-US,en;q=0.8,en-GB;q=0.6
[HTTP_COOKIE] => CMS=18368a69a2b9b1d7a62918213adcf19d;
SVMCMS=05bfdca9adaf72b52578668069db639f61652476;
PHPSESSID=1b86072d4b839507ae6e7223f3645923
[SystemRoot] => C:\Windows
[WINDIR] => C:\Windows
[SERVER_SIGNATURE] =>
[SERVER_SOFTWARE] => Apache/2.4.25 (Win32) OpenSSL/1.0.2k PHP/7.1.2
[SERVER_PORT] => 443
[DOCUMENT_ROOT] => D:/www/httpdocs
[REQUEST_SCHEME] => https
[CONTEXT_PREFIX] =>
[CONTEXT_DOCUMENT_ROOT] => D:/www/httpdocs
[SERVER_ADMIN] => admin@example.com
[SCRIPT_FILENAME] => D:/www/httpdocs/cms/bug.php
[REMOTE_PORT] => 62746
[GATEWAY_INTERFACE] => CGI/1.1
[SERVER_PROTOCOL] => HTTP/1.1
[REQUEST_METHOD] => GET
[QUERY_STRING] =>
[REQUEST_URI] => /cms/bug.php
[SCRIPT_NAME] => /cms/bug.php
[PHP_SELF] => /cms/bug.php
[REQUEST_TIME_FLOAT] => 1488303761.429
[REQUEST_TIME] => 1488303761
[argv] => Array
(
)
[argc] => 0
)
Dumping Cookie!
Setting Cookie!
Array
(
[TEST] => TEST
)
Test 1!
Can't find cookie superglobal!
Test 2!
Dumping Cookie!
Array
(
[TEST] => TEST
)
--
Edit bug report at https://bugs.php.net/bug.php?id=74185&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74185&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74185&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74185&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=74185&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=74185&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=74185&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=74185&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=74185&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=74185&r=support
Expected behavior: https://bugs.php.net/fix.php?id=74185&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=74185&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=74185&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=74185&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74185&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=74185&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=74185&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=74185&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=74185&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=74185&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=74185&r=mysqlcfg