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I'm attempting to run Craft (2.4.2696) on a server with PHP 7 RC, and I'm seeing the following PHP warning:

Declaration of Craft\DbCommand::addForeignKey($table, $columns, $refTable, $refColumns, $delete = NULL, $update = NULL) should be compatible with CDbCommand::addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = NULL, $update = NULL)

It's only a warning, and with devMode off, the site seems to function well. I'm not going to put anything that throws warnings into production, though.

My question(s): What is the cause for this warning, and is it something I can fix myself? Does Craft officially support PHP 7?

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    Looks like PHP 7 reclassified some error messages from E_STRICT to E_WARNING (including this one): wiki.php.net/rfc/… Will update with an answer if I can think of a clean solution.
    – Brad Bell
    Oct 12 '15 at 17:54
  • Sweet, thanks @BradBell. I can revert to 5.6 but it would be fun to play around with 7. Also interested in knowing whether Craft 2.x officially supports 7 or if its too early yet. The docs doesn't mention it at all.
    – Mats Mikkel Rummelhoff
    Oct 12 '15 at 17:55
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    FWIW Craft 3 doesn't have this issue, too.
    – Brad Bell
    Oct 12 '15 at 18:02
  • Good to know ;)
    – Mats Mikkel Rummelhoff
    Oct 12 '15 at 18:03
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As @mmikkel pointed out, as of Craft 2.4.2697, Craft is PHP 7 compatible.

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