How to use if-else in html

Question

I want to use selected option with condition. if $type is room then bed will be selected and if it is bathroom then toilet will be selected. what is wrong with this code. how to correct it????

<html>
  <body>
    <?php
      $type="bathroom";
    ?>
    <form method="post" action="<?php $_PHP_SELF ?>">
      <select name="bedtype">
      <% if($type=="bathroom"){ %>
       <option value="room">BED</option>
       <option value="bathroom" selected>TOILET</option>
      <% } else { %>
       <option value="room" selected>BED</option>
       <option value="bathroom" >TOILET</option>
      <% } %>
      </select>
    </form>
  </body>
</html>

Like that, but remember to turn on [error handling](http://www.sitepoint.com/error-handling-in-php/) - Your code looks correct assuming your are serving this from a web server and it is [rendered as PHP](http://stackoverflow.com/questions/5121495/php-code-is-not-being-executed-i-can-see-it-on-source-code-of-page) — mplungjan, Mar 12 '16 at 07:52
View source. I am guessing you will see `<% if($type=="bathroom"){ %> <% } else { %> <% } %>` - e.g. all the PHP code — mplungjan, Mar 12 '16 at 08:01

SacWebDeveloper · Accepted Answer · 2016-03-12T08:27:44.260

1

You are mixing ASP and PHP tags.

While ASP tags were allowed in PHP 5, as of PHP 7, they have been deprecated and removed. You should switch to strictly <?php ?> and <?= ?>.

http://php.net/manual/en/language.basic-syntax.phptags.php

You also have $_SERVER['PHP_SELF'] wrong.

Ternary conditionals would simplify the code greatly. They are in the form if true statement ? do truth : do falsehood. Providing an echo statement before the ternary conditional would echo out the true or false result.

<html>
<body>
  <?php $type = "bathroom"; ?>
  <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
    <select name="bedtype">
      <option value="room" <?php echo $type == "room" ? 'selected' : ''; ?>>BED</option>
      <option value="bathroom" <?php echo $type == "bathroom" ? 'selected' : '' ?>>TOILET</option>
    </select>
  </form>
</body>
</html>

edited Mar 12 '16 at 08:27

answered Mar 12 '16 at 08:06

SacWebDeveloper

2,563
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>BED is selected using this code. – Akash Nil Mar 12 '16 at 08:12
That doesn't make sense unless it's somehow the HTML selected not working. – SacWebDeveloper Mar 12 '16 at 08:17
Try the code again, this works for me in Apache server. – SacWebDeveloper Mar 12 '16 at 08:22
TOILET is selecting Toilet – Akash Nil Mar 12 '16 at 08:23
That is correct based on the PHP logic. What do you mean? – SacWebDeveloper Mar 12 '16 at 08:24
Thank you sir. it is working now – Akash Nil Mar 12 '16 at 08:37

score 1 · Answer 2 · answered Mar 12 '16 at 08:24

Your code is correct in PHP < 7.0.

You use optional ASP tags ( <% (...) %> ) to embed PHP code.

To activate it, you have to modify your php.ini file turning this line:

asp_tags = Off

in:

asp_tags = On

Please note that ASP tags are rarely used and completely removed on PHP 7.0.

To avoid future incompatibility issue, use standard php tags <?php (...) ?>

As alternative, to echo something, you can use short tags <?= (...) ?>.

So, this:

<?php echo 'Hello World'; ?>

is the same as:

<?= 'Hello World'; ?>

or (you can omit closing semicolon):

<?= 'Hello World' ?>

For the records, there is another short-tag style ( <? (...) ?> ) that must be enabled in php.ini. However, the use of this short-tag is discouraged and substantially abandoned (this style is primary used to identify XML).

How to use if-else in html

2 Answers2