Can validate an array of date[] but not process it? - php

Question

I have a problem with this now, on the end of my mydate I have put [] so I can have an array to process and on the other page, I have process.php.
In the process.php, I have
foreach($_POST["mydate"] as $mydate ){
if($mydate != ''){
Date processed...etc etc....
}
If I put the [], it will store it but wont validate and if I dont put [], it will validate but not post?
Any thoughts?
<script type="text/javascript">
function checkdate(input){
var validformat=/^\d{2}\/\d{2}\/\d{4}$/ //Basic check for format validity
var returnval=false
if (!validformat.test(input.value))
alert("Invalid Date Format. Please correct and submit again.")
else{ //Detailed check for valid date ranges
var monthfield=input.value.split("/")[0]
var dayfield=input.value.split("/")[1]
var yearfield=input.value.split("/")[2]
var dayobj = new Date(yearfield, monthfield-1, dayfield)
if ((dayobj.getMonth()+1!=monthfield)||(dayobj.getDate()!=dayfield)||(dayobj.getFullYear()!=yearfield))
alert("Invalid Day, Month, or Year range detected. Please correct and submit again.")
else
returnval=true
}
if (returnval==false) input.select()
return returnval
}
function CheckDates(inputs)
{
var i, len;
if (inputs.length) {
len = inputs.length;
for (i = 0; i < len; i++) {
if (!checkdate(inputs[i])) return false;
}
return true;
}
return checkdate(inputs);
}
function add(tbl1) {
var tbl = document.getElementById(tbl1);
var rowCount = tbl.rows.length;
var row = tbl.insertRow(rowCount);
var colCount = tbl.rows[1].cells.length;
for(var i=0; i<colCount; i++) {
var newCell = row.insertCell(i);
newCell.innerHTML = tbl.rows[1].cells[i].innerHTML;
}
}
</script>
<form name "enter" action="enter.php" onSubmit="return Checkdate(this.mydate)" method="post">
<table id="day" border="1">
<tr><b>Valid date format:</b><br></tr>
<tr><td>
<input type="text" name="mydate" />
</table><br>
<input type="submit" value="submit" />
<input type="button" value="Add Row" onclick="add('day')"/>
</form>
EDITTED
removed the space but still doesnt work

Answer 1

If there are more than one of the input field, the name must be mydate[] so they are placed in an array, and in your processing code you have an extra space... $_POST['mydate '] won't work it must be $_POST['mydate']
edit: this line <input type="text" name="mydate" /> must be <input type="text" name="mydate[]" />

Answer 2

Try this construction:
foreach ($_POST["mydate"] as $mydate ) {
if(!empty($mydate) && !is_null($mydate)) {
}
}