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IDProjectCategoryView StatusLast Update
0020500mantisbtinstallationpublic2016-08-15 09:02
Reporteratrol Assigned Toatrol  
PrioritynormalSeverityminorReproducibilityhave not tried
Status closedResolutionfixed 
Product Version1.2.19 
Target Version1.2.20Fixed in Version1.2.20 
Summary0020500: Installation fails in PHP 7 environment

Environment: Windows 10, XAMPP, PHP 7.0.1, FF 43 or Edge

Running admin/install.php fails

German FF delivers
Die Webseite, die Sie öffnen möchten, kann nicht angezeigt werden, da sie eine ungültige oder unbekannte Form der Kompression verwendet.

Skript is running after setting $g_compress_html = OFF; in config_defaults_inc.php

Changing back to $g_compress_html = ON; after installation does work.

TagsPHP 7


duplicate of 0020865 closeddregad 'Content Encoding Error' when errors occur before compress handler is started 
related to 0020501 closeddregad Installer throws warning in PHP 7 environment 
related to 0020864 closeddregad "user_pref_get_language()" not defined 
child of 0020499 closeddregad Compatibility with PHP 7 




2016-01-11 07:14

developer   ~0052290

I was not aware that PHP7 introduced issues related to compression.

Could this be due to your XAMPP config already setting compression ( ? PHP can't do both ob_gzhandler() and zlib.output_compression. Although this should normally be handled by compress API.

Maybe tracing what's happening compress_handler_is_enabled() function could help understand the problem. Don't have time to test ATM.



2016-01-14 02:06

developer   ~0052307

Last edited: 2016-01-14 02:07

I was no longer able to reproduce the issue with latest master.
I found that for 0020501 fixed also this issue.

  • function UserPreferences( $p_user_id, $p_project_id ) {
  • function __construct( $p_user_id, $p_project_id ) {