What’ wrong with this syntax?

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I am sure this is simple, but I don’t get why…
Why is this wrong? 

echo "<img src='".bloginfo('template_directory')."/systemdata/next.png' border=0 id='NavImage'>";

If I do it like this, it works:

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echo "<img src='";
echo bloginfo('template_directory');
echo "/systemdata/next.png' border=0 id='NavImage'>";

What do I do not get? I want to write nice code and the second example is not very elegant I think.

Thanks!

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2 comments

  1. You are using the wrong function, bloginfo() already outputs / echoes so you cannot use it when you want to concatenate strings (nor should you echo it…).

    Instead you could use get_bloginfo() as that returns a string:

    echo "<img src='".get_bloginfo('template_directory')."/systemdata/next.png' border=0 id='NavImage'>";

  2. You can try this as far as code elegant factor is concerned: 

    $blogingo=bloginfo('template_directory');
echo "<img src=$blogInfo/systemdata/next.png' border=0 id='NavImage'>";