$ _POST or $ _GET are two special PHP functions that are used to get variables from a user-filled form. While using these functions, a user may encounter an error, stating that there is an undefined ...

Fatal error - headers already sent, undefined index - woocommerce #88 Closed jeremyhalin opened this issue on Feb 28, 2017 · 2 comments ...

PHP Notice: Undefined index: ELEMENT error occured when I test with firefox browser #492 Closed ghost opened on Oct 27, 2017 ...

I get returned with undefined index errors from lines 11 through 16 but 17 is defined. I defined them via the appropriate DIV name and attained this info through firebug, all the meta fields are ...