I run this code:
<?
$map = do_shortcode('[codepeople-post-map]');
if (empty($map)) {echo '<br />'; } else {echo $map;}
?>
The problem is when the $map is empty it won't echo the <br />
I have tried this 2 methods to see if $map is really empty:
echo $map; // It results empty and noting is shown on page.var_dump($map); // It results: string(937) " "My question is what does string(937) " " means and how can I make my code work? I tried also:
<? if ($map == string(937) " ") {echo '<br />'; } else {echo $map;} ?>
But no success so far this last code is wrong and just gives error.
A variable is considered empty if it does not exist or if its value equals FALSE
Your variable is a string with a space, which evaluates to TRUE, so it is not empty.
Instead of using empty(), you might check if trim($map) === ''.
Well, it means that you have a string with a space in it. Probably the var was previously a string which was emptied wrong. One solution I could suggest you, depending what your application's purpose is.
if(trim($map) == "" || $map == null)
{
echo "<br />";
}
else
{
echo $map;
}
Because actually it only means that the string contains a whitespace (this explains why there is a space in " "). You should try to locate where you get the $map value and try to put some verifications there.
Alex