How do I remove: string(0) "" from my results?

[soma56]

Sometimes I receeive the following in my results:

 

string(0) ""

 

Does anyone know how I can remove them?

[Alex]

In what results?

[soma56]

<?php
// Assuming the above tags are at www.example.com
$tags = get_meta_tags('http://www.example.com/');

// Notice how the keys are all lowercase now, and
// how . was replaced by _ in the key.
echo $tags['author'];       // name
echo $tags['keywords'];     // php documentation
echo $tags['description'];  // a php manual
echo $tags['geo_position']; // 49.33;-86.59
?>

[Alex]

By remove do you mean not display them if it's empty or what? You can use empty to determine if it's empty or not. We really need a better explanation & relevant code to help, you just posted an example from the manual.

[soma56]

Sorry Alex.

 

What's happening is that in some instances with the code below I'm receiving:

 

string(0) ""

 

I've tried to dump it and unset it however now it still echo's "NULL"

 

 

[php
<?php
$tags = get_meta_tags('http://www.example.com/');

$data = explode(",", $tags['keywords']);

foreach ($data as $value)
if (empty($value)){
unset($value);
var_dump($value);
} else {
echo $value . "<br />" . PHP_EOL;
flush();
    ob_flush();
    usleep(500000);
}
}

?>[/code]

 

 

[Alex]

You want to remove it from the array?

 

foreach ($data as $key => $value) 
   if (empty($value)){
      unset($data[$key]);
      var_dump($value);
   } else { 
...

 

var_dump will return NULL because it's... null.

[trq]

If the value is empty why are you using var_dump() on it? it is var_dump() that produces string(0) ""

[soma56]

Thanks, had no idea that var_dump was causing. I appreciate everyone's' response.