我怎样才能让 php 只写一次选择到列表中？

Question

Im going to make a html list with php what is the default value is the current day,month or year.

like this:

Here is the code:

while ($start <= $end) {
    if ($start == date("Y") || $start == date("d")  || $start == date("m")) {
        echo "<option selected value='$name'>$start</option> <br>";
    } else {
        echo "<option value='$name'>$start</option> <br>";
    }
    $start++;
}
    
echo "</select>";

The problem is the logic is not working fine, because at the day or month cant be separated and it always make 2 selected item in html, and and always applies the last one.

Anyone can help me to solve this problem? Any tips, maybe this is not the good way for this.

Answer 1

Set a variable to compare with depending on which dropdown you're creating, which is appareently in the $name variable. Then you won't mistakely select the Day value that matches the current month, or vice vera.

if ($name == 'Year') {
    $selected = date('Y');
} elseif ($name == 'Month') {
    $selected = date('m');
} elseif ($name == 'Day') {
    $selected = date('d');
}

while ($start <= $end) {
    if ($start == $selected) {
        echo "<option selected value='$start'>$start</option> <br>";
    } else {
        echo "<option value='$start'>$start</option> <br>";
    }
    $start++;
}
    
echo "</select>";