Question

str_replace($search, $replace, $subject);

I have no problem with $search string and $replace string.

But how can I use str_replace() with $search string and $replace array?

Answer 1

The str_replace() documentation provides a clear example how to use arrays (of equal size):

// Provides: You should eat pizza, beer, and ice cream every day
$phrase  = "You should eat fruits, vegetables, and fiber every day.";
$healthy = array("fruits", "vegetables", "fiber");
$yummy   = array("pizza", "beer", "ice cream");

$newphrase = str_replace($healthy, $yummy, $phrase);

Using $search as a string and $replaces as an array is not possible and ‘weird’: which array value should be used for matches?