Title: PHP error updating WordPress 3.7 Last modified: August 21, 2016 --- # PHP error updating WordPress 3.7 * [lordgault](https://wordpress.org/support/users/lordgault/) * (@lordgault) * [12 years, 6 months ago](https://wordpress.org/support/topic/php-error-56/) * Hello everyone, I wanted to notify a PHP error when upgrading to version 3.7 of WordPress: * > [25-Oct-2013 07:23:31] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 242 > [25-Oct-2013 07:26:06] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 242 [25-Oct-2013 07:26:22] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 242 [25-Oct-2013 07:26:30] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 242 [25-Oct-2013 12:14:49] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 242 [25-Oct-2013 12:19:18] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 242 [25-Oct-2013 12:22:47] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 242 [25-Oct-2013 12:29:17] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 242 [25-Oct-2013 12:32:55] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxxx/xxxx/public_html/wp-includes/update. > php on line 242 [25-Oct-2013 12:36:13] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 242 [25-Oct-2013 12:39:17] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxxx/xxx/public_html/wp-includes/update. > php on line 242 * Any suggestions? thanks Google Translation Viewing 8 replies - 1 through 8 (of 8 total) * Thread Starter [lordgault](https://wordpress.org/support/users/lordgault/) * (@lordgault) * [12 years, 6 months ago](https://wordpress.org/support/topic/php-error-56/#post-4255207) * New update and new error PHP. Now on line 246. On WordPress 3.7.1 * > [30-Oct-2013 07:09:59] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 246 > [30-Oct-2013 07:13:34] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 246 [30-Oct-2013 07:16:58] PHP Warning: json_encode() [[function.json-encode](https://wordpress.org/support/topic/php-error-56/function.json-encode?output_format=md)]: > Invalid UTF-8 sequence in argument in /xxx/xxx/public_html/wp-includes/update. > php on line 246 * Any suggestions? * [Sufia](https://wordpress.org/support/users/sufia/) * (@sufia) * [12 years, 6 months ago](https://wordpress.org/support/topic/php-error-56/#post-4255209) * Hi everyone, I am receiving this error after wordpress 3.7.1 update: * Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 7680 bytes) in /home/a1868064/public_html/wp-admin/includes/class-wp-list-table. php on line 581 * can anyone suggest me the solution ?? * [veg-o-matic](https://wordpress.org/support/users/veg-o-matic/) * (@veg-o-matic) * [12 years, 6 months ago](https://wordpress.org/support/topic/php-error-56/#post-4255254) * Hi: * I’m getting the same error that lordgault is getting, but only since upgrading to 3.7.1, and only with two of our blogs. * Any ideas? * Thanks! * [esmi](https://wordpress.org/support/users/esmi/) * (@esmi) * [12 years, 6 months ago](https://wordpress.org/support/topic/php-error-56/#post-4255255) * **[@veg-o-matic](https://wordpress.org/support/users/veg-o-matic/)**: As per the [Forum Welcome](http://codex.wordpress.org/Forum_Welcome#Where_To_Post), please post your own topic. * Thread Starter [lordgault](https://wordpress.org/support/users/lordgault/) * (@lordgault) * [12 years, 6 months ago](https://wordpress.org/support/topic/php-error-56/#post-4255261) * You have moved the thread and do not see it anywhere … Well, I see I’m not the only error happens. Aperte to disable the plugin has any other suggestions? * [Bryan Willis](https://wordpress.org/support/users/codecandid/) * (@codecandid) * [11 years, 12 months ago](https://wordpress.org/support/topic/php-error-56/#post-4255310) * any solutions yet? Have the exact same thing * [marikamitsos](https://wordpress.org/support/users/marikamitsos/) * (@marikamitsos) * [11 years, 11 months ago](https://wordpress.org/support/topic/php-error-56/#post-4255311) * > Have the exact same thing * **So do we** on a 3.9.1 multisite/subfolders installation: * > Jun 03, 10:00:01 PHP Warning: json_encode(): Invalid UTF-8 sequence in argument > in /xxx/public_html/wp-includes/update.php on line 270 > Jun 03, 10:05:36 PHP > Warning: json_encode(): Invalid UTF-8 sequence in argument in /xxx/public_html/ > wp-includes/update.php on line 270 Jun 03, 10:05:54 PHP Warning: json_encode(): > Invalid UTF-8 sequence in argument in /xxx/public_html/wp-includes/update.php > on line 270 * We get a whole bunch of them every time we access the network dashboard (I think). Has anyone looked into it? * [esmi](https://wordpress.org/support/users/esmi/) * (@esmi) * [11 years, 11 months ago](https://wordpress.org/support/topic/php-error-56/#post-4255312) * If you require assistance then, as per the [Forum Welcome](http://codex.wordpress.org/Forum_Welcome#Where_To_Post), please post your own topic instead of tagging onto someone else’s topic. * I am now closing this 6 month old topic as it references an older version of WordPress. Viewing 8 replies - 1 through 8 (of 8 total) The topic ‘PHP error updating WordPress 3.7’ is closed to new replies. * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 8 replies * 6 participants * Last reply from: [esmi](https://wordpress.org/support/users/esmi/) * Last activity: [11 years, 11 months ago](https://wordpress.org/support/topic/php-error-56/#post-4255312) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics