删除单个字符串中的字符

Question

example:

  $name1="abcdefg";
  $name2="csawea";

Output: bdfgsw

i want to make a php code that removes all the same characters and its duplicate that is in Input1 and Input2, im new in PHP so im kinda confused in the codes, i know the strrpos,substr func but i need to see a finish product in order to understand the flow. TNX!!

other ex:

$name1= "aaabb";
$name2= "bccc";

Output: aaaccc

Answer 1

Use preg_match(); or str_replace();.