Execute a condition if form values are not set in php
Execute a condition if form values are not set in php
I am trying a execute a piece of code if form values are not set, but it's not working properly.
Here is my form:
<form method="post" action="downloadreport.php">
<div class="col-md-12" >
<div class="form-group label-floating">
<label class="control-label">From Date</label>
<input type="text" class="form-control" id="datepicker" name="datepicker" >
</div>
</div>
<div class="col-md-12">
<div class="form-group label-floating">
<label class="control-label">To Date</label>
<input type="text" class="form-control" id="datepicker1" name="datepicker1" >
</div>
</div>
<div class="col-md-12">
<div class="form-group label-floating">
<label class="control-label">Select Usertype</label>
<select name="trackforums" id="trackforumns" class="form-control" >
<option value="1">Active</option>
<option value="0">Inactive</option>
<option value="3">Active/Inactive</option>
</select>
</div>
</div>
<div class="col-md-12">
<div class="form-group label-floating">
<button type="submit" name="submit" value="submit" class="btn btn-info form-control">Download Report</button>
</div>
</div>
</form>
Here are my form values
if (isset($_POST['submit']))
$fromdate =$_POST['datepicker'];
$todate = $_POST['datepicker1'];
$usertype= $_POST['trackforums'];
if($todate >= $fromdate)
//execute report with dates
elseif(isset($_POST[fromdate]) && $_POST[todate] = "")
//execute full report
else
echo "Your To date should be greater than from date";
When I have tried this, it is not going to the elseif condition if I didn't enter any dates in form field.
Don't use comments to add details. Edit your post with important informations.
– franiis
Aug 23 at 5:17
its a huge code inside conditions thats y i have kept like this
– user200
Aug 23 at 5:18
I mean your comment under question
when i try with var_dump($_POST) .... Comments in code are fine, if all important details are left in question.– franiis
Aug 23 at 5:20
when i try with var_dump($_POST) ....
$_POST[todate] = "" doesn't check a value, it sets a value. It should be $_POST[todate] == "".– Magnus Eriksson
Aug 23 at 5:35
$_POST[todate] = ""
$_POST[todate] == ""
1 Answer
1
Your form is delivering empty strings when the date values are missing; empty() can check that. empty() offers the added benefit of checking for missing keys, so you won't get Notices.
empty()
empty()
Untested Suggested Condition Block:
if (!isset($_POST['submit']))
echo "No submission";
elseif (empty($_POST['datepicker']) || empty($_POST['datepicker1']))
echo "at least one date picker is empty, treat as no dates picked";
elseif ($_POST['datepicker1'] >= $_POST['datepicker'])
echo "invalid To date";
else
echo "execute report within valid date range
yes i have looked at can you please make your answer with only 3 conditions as per my question? as i am little bit confused with those conditions
– user200
Aug 23 at 5:48
I believe this improves your validation process. What happens when
$_POST['datepicker'] is empty? Do you execute something in this case?– mickmackusa
Aug 23 at 5:50
$_POST['datepicker']
No actually in my case if user want to download excel either they will enter both from and todate orelse they wont enter any values in from and todate
– user200
Aug 23 at 5:51
You understand my problem rite?
– user200
Aug 23 at 5:55
For
_POST['datepicker1'] >= $_POST['datepicker'] to logically work, you need both date picker values to be "non-empty". This is the reason for my first elseif check.– mickmackusa
Aug 23 at 6:14
_POST['datepicker1'] >= $_POST['datepicker']
elseif
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when i try with var_dump($_POST) getting like this array(4) ["datepicker"]=> string(0) "" ["datepicker1"]=> string(0) "" ["trackforums"]=> string(1) "1" ["submit"]=> string(6) "submit"
– user200
Aug 23 at 5:14