How to store a PHP variable in a HTML attribute?

Question

I want to create a page which allows a user to select colours (among the listed ones, via checkboxes). When the user clicks on the submit button, all the selected colours should get displayed with their corresponding colours as their font colour.

Here is my code:

<?php 
if(!isset($_POST['button'])) { 
?>
    Colours<br>
    <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method=post>
    <input type="checkbox" name="colours[]" value="Red">Red<br>
    <input type="checkbox" name="colours[]" value="Blue">Blue<br>
    <input type="checkbox" name="colours[]" value="Green">Green<br>
    <input type="checkbox" name="colours[]" value="Yellow">Yellow<br>
    <input type="checkbox" name="colours[]" value="Pink">Pink<br>
    <input type="submit" name="button" value="Show"> </form>
    <?php
} else {
    if (isset($_POST['colours'])) {
        echo "Colours selected are:<br><UL type=circle>";
        foreach($_POST['colours'] as $color) 
            echo "<LI><font color='echo $color'; >$color</font>";
        echo"</UL>";
    } else { 
        echo "No colour selected"; 
    }
} 
?>

There is a bug somewhere, the font colors are not as expected. I want it like this image below:

I suggest you clear doubts on HTML first.http://www.w3schools.com/html/ — Amit Ray, Jun 03 '16 at 10:41
@Amit-Ray What do you mean? I know HTML, and the HTML code is correct. — RisingUnderDog, Jun 03 '16 at 10:49
@RisingUnderDog Whether it should be method=post or method="post" ? — Amit Ray, Jun 03 '16 at 10:52
HTML Tag. Not Supported in HTML5. Reference: [Font Tag](http://www.w3schools.com/tags/tag_font.asp) — AlexG, Jun 03 '16 at 11:27
@AmitRay What I know is method=post, method='post' and method="post" all three are correct, am I wrong? — RisingUnderDog, Jun 03 '16 at 17:20

Ravi Hirani · Answer 1 · 2016-06-03T11:09:24.197

2

Simply write

echo "<li><font color='$color'> $color </font></li>"; // complete li tag

other mistakes:-

a) form method attrubute should be method='post'

b) UL type=circle should be ul type='circle'

edited Jun 03 '16 at 11:09

answered Jun 03 '16 at 10:57

Ravi Hirani

6,511
1
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42

score 1 · Answer 2 · answered Jun 03 '16 at 10:41

1

Try this;

  echo "Colours selected are:<br><UL type=circle>";
  foreach($_POST['colours'] as $color) {
    echo " <LI><font color='".$color."'>'".$color."'</font></LI>";
  }
  echo"</UL>";

answered Jun 03 '16 at 10:41

Dhara Parmar

8,021
1
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27

type='circle' or type=circle? – Ravi Hirani Jun 03 '16 at 10:55
While this code snippet may solve the question, [including an explanation](https://meta.stackexchange.com/questions/114762/explaining-entirely-code-based-answers) really helps to improve the quality of your post. Remember that you are answering the question for readers in the future, and those people might not know the reasons for your code suggestion. Please also try not to crowd your code with explanatory comments, this reduces the readability of both the code and the explanations! – Box Box Box Box Jun 04 '16 at 03:48

score 1 · Accepted Answer · edited Jun 04 '16 at 00:22

1

When appending a string to variable or another string, you must concatenate the values with a . (dot). for example:

echo("<li><font color=".$color.">".$color."</font>");

edited Jun 04 '16 at 00:22

Michael

10,124
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answered Jun 03 '16 at 10:41

EatMyDust

126
2

Thanks the problem is solved, but I wanna ask why putting dots solved the problem? – RisingUnderDog Jun 03 '16 at 10:51
1

in php for appending one string to other u must use dots – EatMyDust Jun 03 '16 at 11:08
3

While this code snippet may solve the question, [including an explanation](https://meta.stackexchange.com/questions/114762/explaining-entirely-code-based-answers) really helps to improve the quality of your post. Remember that you are answering the question for readers in the future, and those people might not know the reasons for your code suggestion. Please also try not to crowd your code with explanatory comments, this reduces the readability of both the code and the explanations! – Box Box Box Box Jun 03 '16 at 11:23
@EatMyDust Oh, I read about this but I didn't understand it's use, now it's absolutely clear. Thanks again. – RisingUnderDog Jun 03 '16 at 17:28
@AshishAhujaツ Is your comment somehow related to me? I can't understand your comment.. :P – RisingUnderDog Jun 03 '16 at 17:30
@RisingUnderDog Nah Nah. The comment was for the answer. – Box Box Box Box Jun 04 '16 at 03:47

How to store a PHP variable in a HTML attribute?

3 Answers3