HTML Registration Form - Array not treated as empty() - php

Question

Heyo newbie to PHP here,
I'm creating a registration form where the user is able to select how many family members are in the family, Depending on the number selected the same number of fields would be created to allow them to enter family members' details.
The form checks if all error messages are empty before starting the database insert.
I've been trying for hours though still not sure what's causing the array to return empty() - False,
Full Code -
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Creation of the Arrays
$MemberNameErr = array();
$MemberDOBErr = array();
Giving the Array values based on the number of Family Members
for($Variable_Counter = 0; $Variable_Counter < $Family_Counter;
$Variable_Counter++)
{
$MemberNameErr[$Variable_Counter] = "";
$MemberDOBErr[$Variable_Counter] = "";
}
If function that checks that no errors have been made
if ($FamilyNameErr == "" && $DateErr == "" && $EmailErr == "" && $PhoneErr == "" && $MobileErr == "" && empty($MemberNameErr) && empty($MemberDOBErr))
{
currently using empty() as a way to check if the array is empty
created these just to check if the arrays were Not Empty
if (!empty($MemberNameErr))
{
echo " MEMBER ERROR NOT EMPTY ";
}
if (!empty($MemberDOBErr))
{
echo " DOB ERROR NOT EMPTY ";
}
Thank you for all your input.

Answer 1

In your loop
for($Variable_Counter = 0; $Variable_Counter < $Family_Counter; $Variable_Counter++)
{
$MemberNameErr[$Variable_Counter] = "";
$MemberDOBErr[$Variable_Counter] = "";
}
You're assigning empty string to indexes of the array. This means the array isn't empty anymore.
In example :
$tab = array("", "", "");
if (empty($tab))
{
echo "Empty";
}
else
{
echo "Not empty";
}
Output :
Not empty
A workaround could be to iterate through this array and check if there's at least 1 non empty string.
In example
function CheckNonEmptyValue($arr)
{
foreach ($arr as $value)
{
if (!empty($value))
{
return (true);
}
}
return (false);
}
if (CheckNonEmptyValue($MemberNameErr))
{
echo " MEMBER ERROR NOT EMPTY ";
}
if (CheckNonEmptyValue($MemberDOBErr))
{
echo " DOB ERROR NOT EMPTY ";
}