javascript - Hold input=date value in HTML after submited button in table -

i searched lot maybe because quite new here couldn't fine result that's works challenge.

project view

what's going on: have made page users click on date-picker, after user selected date or date range , click on submit button "verzenden"the table positioned under selection area shows data specific date or date range available in database.

in table user able adjust data specific table row. after clicking on submit "ok" button changes user made pushed database.

now challenge: after user has changed data row click on submit button "ok" want achieve user getting it's last date selection made before adjusting data in row table. best way handle ?? hope me, participating , reading.

the term you're looking "pre-populating form". can pre-populate form php generating html has value written directly in html

<input type="text" value="<?php echo htmlspecialchars($somevalue, utf8, ent_both);?>"> 

your homework wants save input user's session, , check session every time render page. if previous value in session, pre-populate form (i.e. render html hard-coded values).