Question

I need to check a string to see if any word in it has multiple occurences. So basically I will accept:

‘google makes love’

but I don’t accept:

‘google makes google love’ or ‘google makes love love google’ etc.

Any ideas? Really don’t know any way to approach this, any help would be greatly appreciated.

Answer 1

Based on Wicked Flea code:

function single_use_of_words($str) {      $words = explode(' ', trim($str));  //Trim to prevent any extra blank    if (count(array_unique($words)) == count($words)) {       return true; //Same amount of words    }       return false; }