php function in html link

Question

I am attempting to call a website root by using a PHP function within a HTML link.

I have created the function bloginfo() below and the correct link output is http://www.example.com/subdirectory/file.php.

The two methods of calling the function are similar but method 1 does not work and method 2 works.

Please can somebody explain why method 1 does not work and suggest a solution. Thanks.

<?php
function bloginfo($show) {
switch ($show) {
    case 'template_url':
        echo "www.example.co.uk";
        break;
}
}

// Method 1 - does not work
echo "<a href=\"http://<?php bloginfo('template_url'); ?>/subdirectory/file.php\">test link 1</a>";

?>
<html>
<body>

<!-- Method 2 - works! -->
<a href="http://<?php bloginfo('template_url'); ?>/subdirectory/file.php">test link 2</a>

</body>
</html>

Update

echo "<a href=\"http://".bloginfo('template_url')."/subdirectory/file.php\">

Thanks for your help everyone. Unfortunately I could not get the common answer (above line of code) to work as for some reason 'www.example.com' would be printed but not as a link, and the link direction simply became '/subdirectory/file.php'.

To solve the problem I gave up on incorporating a function and decided to simply use the PHP Define method below which works for both methods.

<?php

//this line of code can be put into an external PHP file and called using the PHP Include method.
define("URL", "www.example.com", true);

// Method 1 - works!
echo "<a href=\"http://".URL."/subdirectory/file.php\">test link 1</a>";

?>
<html>
<body>

<!-- Method 2 - works! -->
<a href="http://<?php echo URL; ?>/subdirectory/file.php">test link 2</a>


</body>
</html>

Ray · Accepted Answer · 2012-10-31 23:13:14Z

6

The double quoted string is making your php block in the first method just a plain old text string. Try this:

  echo "<a href=\"http://".bloginfo('template_url')."/subdirectory/file.php\">test link 1</a>";

answered Oct 31, 2012 at 23:13

Ray

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Comments

shapeshifter · Accepted Answer · 2012-10-31 23:14:03Z

1

You've nested some php tags

echo "<a href=\"http://" .bloginfo('template_url') . "/subdirectory/file.php\">test link 1</a>";

answered Oct 31, 2012 at 23:14

shapeshifter

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Comments

Manos Serifios · Accepted Answer · 2012-10-31 23:20:15Z

0

or this:

echo "<a href=\"http://{bloginfo('template_url')}/subdirectory/file.php\">test link 1</a>";

answered Oct 31, 2012 at 23:20

Manos Serifios

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1 Comment

Manos Serifios Over a year ago

oops! sorry then! my mistake!

Chris · Accepted Answer · 2012-10-31 23:42:24Z

It was because you were using within tags and not telling it to echo either. The below code will work - I have commented out your old line and added a new line that will work

<?php
function bloginfo($show) {
  switch ($show) {
    case 'template_url':
    echo "www.example.co.uk";
    break;
  }
}

// Method 1 - does not work
//echo "<a href=\"http://<?php bloginfo('template_url'); ?>/subdirectory/file.php\">test link 1</a>";

echo "<a href=\"http://".bloginfo('template_url')."/subdirectory/file.php\">test link 1</a>"; <--- changed the above line to this... now both this and the lower line work


?>
<html>
<body>

<!-- Method 2 - works! -->
<a href="http://<?php bloginfo('template_url'); ?>/subdirectory/file.php">test link 2</a>

</body>
</html>

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