{"id":638,"date":"2022-08-30T15:04:41","date_gmt":"2022-08-30T15:04:41","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2013\/11\/09\/undefined-index-when-submitting-html-form-via-post-method-collection-of-common-programming-errors\/"},"modified":"2022-08-30T15:04:41","modified_gmt":"2022-08-30T15:04:41","slug":"undefined-index-when-submitting-html-form-via-post-method-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2022\/08\/30\/undefined-index-when-submitting-html-form-via-post-method-collection-of-common-programming-errors\/","title":{"rendered":"Undefined index when submitting HTML form via POST method-Collection of common programming errors"},"content":{"rendered":"<p>I have been searching days why this piece of code is not working. Adjusted the code multiple times by searching for posts with the same problem.<\/p>\n<p>Problem: my php file doesn&#8217;t seem to get the values it needs from a simple HTML form (made w. bootstrap) via POST-method. I use the issit function to check if the submit button has been clicked and thereafter I use to check if the form was filled out completely.<\/p>\n<p>Please note that I am relatively new to php. I hope I did miss something and it is not just a simple typo.<\/p>\n<p>PHP code (bootstrap\/php\/boeking.php)<\/p>\n<p id=\"rop\"><small>Originally posted 2013-11-09 21:09:29. <\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>I have been searching days why this piece of code is not working. Adjusted the code multiple times by searching for posts with the same problem. Problem: my php file doesn&#8217;t seem to get the values it needs from a simple HTML form (made w. bootstrap) via POST-method. I use the issit function to check [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-638","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=638"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/638\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}