Remove all spaces and commas in a sentence

Question

I'm working with data migration using Drupal 7. I am migrating some taxonomy terms and I wanted to know how to remove spaces and commas from a sentence.

If this is the sentence:

' this, is my sentence'

The desired result that I'm looking for:

'thisismysentence'

So far I have managed to do this:

$terms = explode(",", $row->np_cancer_type);
    foreach ($terms as $key => $value) {
      $terms[$key] = trim($value);
    }
var_dump($terms);

which only gives me the following result: 'this is my sentence' Anyone has a suggestion on how to achieve my desired result

Answer 1

You can use one preg_replace call to do this:

$str = ' this, is my sentence';
$str = preg_replace('/[ ,]+/', '', $str);
//=> thisismysentence

Answer 2

Just use str_replace():

$row->np_cancer_type = str_replace( array(' ',','), '', $row->np_cancer_type);

Example:

$str = ' this, is my sentence';
$str = str_replace( array(' ',','), '', $str);
echo $str; // thisismysentence