Replace multiple words with Str_Replace

Question

I want to replace multiple synonyms with one specific word.

Answer 1

You should use strtr

echo strtr($str,array_combine($a,$b)); 

Or Just combine $a and $b into one array

$ab = array('truck' => 'car','vehicle' => 'car','sedan' => 'var','coupe' => 'var','Toyota' => 'Lexus');
echo strtr($str, $ab);

Output

Honda is a car. 
Lexus is a car. 
Nissan is a car. 
Scion is a car.