Support » Plugin: WP Super Cache » PHP 7.1 errors

  • Moderator Steve Stern

    (@sterndata)


    Support Team Volunteer

    After upgrading to PHP 7.1, I get this in my logs:

    (this site 4.7 RC2)

    PHP Fatal error:  Uncaught Error: Cannot use string offset as an array in /var/www/stevenstern.us/wordpress/wp-content/plugins/wp-super-cache/wp-cache-phase2.php:584\nStack trace:\n#0 /var/www/stevenstern.us/wordpress/wp-content/plugins/wp-super-cache/wp-cache-phase2.php(313): wp_cache_get_ob('<!DOCTYPE html>...')\n#1 [internal function]: wp_cache_ob_callback('<!DOCTYPE html>...', 9)\n#2 /var/www/stevenstern.us/wordpress/wp-includes/functions.php(3673): ob_end_flush()\n#3 /var/www/stevenstern.us/wordpress/wp-includes/class-wp-hook.php(298): wp_ob_end_flush_all('')\n#4 /var/www/stevenstern.us/wordpress/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters('', Array)\n#5 /var/www/stevenstern.us/wordpress/wp-includes/plugin.php(453): WP_Hook->do_action(Array)\n#6 /var/www/stevenstern.us/wordpress/wp-includes/load.php(670): do_action('shutdown')\n#7 [internal function]: shutdown_action_!
     hook()\n#8 {main}\n  thrown in /var/www/stevenstern.us/wordpress/wp-content/plugins/wp-super-cache/wp-cache-phase2.php on line 584, referer: https://www.stevenstern.me/2015/01/stock-up-on-those-little-batteries-now-before/
    

    and

    legal string offset 'headers' in /var/www/stevenstern.us/wordpress/wp-content/plugins/wp-super-cache/wp-cache-phase2.php on line 584, referer: https://www.stevenstern.me/2015/01/pretty-damn-close-give-em-a-cigar-spacex/
    

    and this on a 4.6 site:

    [Sat Dec 03 13:03:03.857250 2016] [php7:error] [pid 6225] [client 205.178.123.47:43894] PHP Fatal error:  Uncaught Error: Cannot use string offset as an array in /var/www/lvr2/wordpress/wp-content/plugins/wp-super-cache/wp-cache-phase2.php:584\nStack trace:\n#0 /var/www/lvr2/wordpress/wp-content/plugins/wp-super-cache/wp-cache-phase2.php(313): wp_cache_get_ob('<!DOCTYPE html>...')\n#1 [internal function]: wp_cache_ob_callback('<!DOCTYPE html>...', 9)\n#2 /var/www/lvr2/wordpress/wp-includes/functions.php(3598): ob_end_flush()\n#3 /var/www/lvr2/wordpress/wp-includes/plugin.php(524): wp_ob_end_flush_all('')\n#4 /var/www/lvr2/wordpress/wp-includes/load.php(671): do_action('shutdown')\n#5 [internal function]: shutdown_action_hook()\n#6 {main}\n  thrown in /var/www/lvr2/wordpress/wp-content/plugins/wp-super-cache/wp-cache-phase2.php on line 584
    
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