Question

The user input is stored in the variable $input.

so i want to use preg replace to swap the letters from the user input that will range from a-z, with my own custom alphabet.

My code i am trying, which doesnt work is below:

preg_replace('/([a-z])/', "y,p,l,t,a,v,k,r,e,z,g,m,s,h,u,b,x,n,c,d,i,j,f,q,o,w", $input)

This code however doesnt work.

If anyone has any suggestions on how i can get this working then that would be great. Thanks

Answer 1

Don’t jump for preg, when str is enough:

$regular = range('a', 'z');
$custom = explode(',', "y,p,l,t,a,v,k,r,e,z,g,m,s,h,u,b,x,n,c,d,i,j,f,q,o,w");
$output = str_replace($regular, $custom, $input);