Select Dynamic value from Dropdown using PHP

Question

How can I Populate a Select DropDown with last year value (2016) as selected default?

<?php
 $last_year = date ("Y");
 print "<select>";
 for( $i = 2004; $i <= $last_year; $i++ ) {
  echo "<option selected=\"$last_year\" value=\"$i\">$i</option>\n";
 };
 print "</select>";
?>

Thank you!

I found similar requirement and solution in below link. http://stackoverflow.com/questions/34206981/php-loop-for-year-dropdown — BHUVANESH MOHANKUMAR, Aug 13 '16 at 16:56
Sidenote: `echo` uses one less character then `print` (more strain on your fingers). You can see the differences in this Q&A http://stackoverflow.com/questions/1647322/whats-the-difference-between-echo-print-and-print-r-in-php and http://stackoverflow.com/questions/7094118/reference-comparing-phps-print-and-echo - If `print` what you really want to use, the more power to you. — Funk Forty Niner, Aug 13 '16 at 17:29

Manuel Mannhardt · Accepted Answer · 2016-08-13T17:23:46.813

2

    <?php
    $last_year = date ("Y");
    print "<select>";
    for( $i = 2004; $i <= $last_year; $i++ ) {
        $selected = ($last_year == $i) ? 'selected="selected"' : '';
        echo "<option $selected value=\"$i\">$i</option>\n";
    }
    print "</select>";
    ?>

If I got you right, then this should work for you. What you did was to select every year instead of just the last one.

edited Aug 13 '16 at 17:23

answered Aug 13 '16 at 16:57

Manuel Mannhardt

2,191
1
17
23

Just for reference, you can edit deleted answers and then undelete them, rather than answering twice – RiggsFolly Aug 13 '16 at 17:04
Thanks, but ikr, accidently clicked the wrong button. Me brainfart ^.^ – Manuel Mannhardt Aug 13 '16 at 17:05
1

LOL, ok no problem – RiggsFolly Aug 13 '16 at 17:06
your line code, return FALSE – Hexman Aug 13 '16 at 17:20
Fixed it, works now – Manuel Mannhardt Aug 13 '16 at 17:24
in Firefox 47.0 not work, in chrome 52.0... work :) – Hexman Aug 13 '16 at 18:00
1

I have FF47.0.1 and it works. There is no reason why is shouldnt work on any browser ^^ – Manuel Mannhardt Aug 13 '16 at 18:02
My code not work in Firefox with refresh F5 or button refresh because my page is loaded from cache, not from server. It works only with CTRL+F5 or my code is `echo ' – Hexman Aug 13 '16 at 18:45

Dave · Answer 2 · 2016-08-13T17:07:17.073

1

doing a comparison in the loop like this:

for( $i = 2004; $i <= $last_year; $i++ ) {
    if($i == $last_year){
        $sel = 'selected=selected';
    } else {
        $sel = '';
    }
    echo "<option value='$i' $sel>$i</option>\n";
};

edited Aug 13 '16 at 17:07

answered Aug 13 '16 at 16:58

Dave

878
8
19

You should not assign null if it is not the right year, just do an empty string to prevent errors – Manuel Mannhardt Aug 13 '16 at 16:59
I've done it this way for years without any issues. – Dave Aug 13 '16 at 17:00
1

@Dave In else part edit that "null" value to some other value, for safe code handling, I accept that else condition will not be assigned but for code quality and avoid breaking in unconditional scenario, assign empty value. Thanks – BHUVANESH MOHANKUMAR Aug 13 '16 at 17:06
OK I've emptied it. – Dave Aug 13 '16 at 17:09
Another, shorter way, would be to use short if condition or setting the $sel to an empty string right before the if statement – Manuel Mannhardt Aug 13 '16 at 17:25
Not work, i tested with `print_r ($sel);` and return selected=selected and `print_r($i);` return 2017 – Hexman Aug 13 '16 at 17:45
if your after 2016 you could hard code it: if($i == '2016'){ – Dave Aug 13 '16 at 17:59
I changed `$sel = 'selected=selected';` with `$sel = 'selected=\"selected\"';` and function in chrome v.52.0.. and in Firefox 47.0 not work :) – Hexman Aug 13 '16 at 18:03
Basically this is the same code as I posted, so it should work exactly the same – Manuel Mannhardt Aug 13 '16 at 18:03

Select Dynamic value from Dropdown using PHP

2 Answers2