php - Save checked values on page refresh? -

ive saved form data ajax , php, reusing data database.

however way approaching different, there no database, insight great.

i emailing form data, data simple checkboxes, values either 0 or 1. when user refreshes page id keep checked values.

i guess without database need use cookies, , way avoid cookies ajax , database (strictly logic, not sure if true), why asking, want simple solution.

form snippet:

<input name="sharks" type="hidden" value="0"> <input name="sharks" type="checkbox" value="1" id="sharks" '.$value ? ' checked="checked"' : ''.'> 

the php part of input shaky, id question whether value 0 or 1, if 1 checked if 0 empty.

getting database easier not sure since there no database, im guessing cookies come place.

sorry if last part shaky im little unsure , dont know look.

using sessions:

session_start(); if(isset($_post['submit'])) {    if(isset($_post['personalization_result'])) {        $_session['value'] = $_post['personalization_result']; }     else {     $_session['value'] = '';      } }  

form

<form action="<?php the_permalink(); ?>" method="post" id="question-form">     <input type="hidden" name="submit" value="1">         <?php                if ($_session['value'] == 1) {               $checked = 'checked="checked"'; }           ?>     <li>     <input name="personalization_result[memory_0]" type="hidden"   value="0">  <input name="personalization_result[memory_0]" type="checkbox" value="1" id="personalization_result_memory_0" <?php $checked ?> >  </li>   <li>     <input name="personalization_result[memory_1]" type="hidden"   value="0">  <input name="personalization_result[memory_1]" type="checkbox" value="1" id="personalization_result_memory_1" <?php $checked ?> >  </li>   <li>     <input name="personalization_result[memory_2]" type="hidden"   value="0">  <input name="personalization_result[memory_2]" type="checkbox" value="1" id="personalization_result_memory_2" <?php $checked ?> >  </li> 

this code stores data in session:

<?php session_start(); if(isset($_post['submit'])) {     if(isset($_post['sharks']))     {         $_session['value'] = $_post['sharks'];     }     else     {         $_session['value'] = '';     } } ?> <form action="" method="post"> <?php print '<input name="sharks" type="checkbox" value="1" id="sharks" '; if ($_session['value'] == 1) {     print ' checked="checked"'; }  print ">"; ?> <br> <input type="submit" name="submit" value="save" /> </form> 

worked me, keeping checkbox checked after closed , opened browser again. after testing added rather complex if avoid undefined variable notice. set part seems robust.