Question

input:

$string = "a b c  d   e"; 

i have a string in php and I need to replace the string with the non-break space code

output:

"a \xc2\xa0b c \xc2\xa0d \xc2\xa0\xc2\xa0e"

1. single space and the first space is not allowed to replace with \xc2\xa0
2. when two space appear ” “, the output is ” \xc2\xa0″, first space is kept and the second space is replace.
3. when three spaces appear ” “, the output is ” \xc2\xa0\xc2\xa0″, first space is kept and the second and third space is replaced.
4. the input string is randomly

Any idea with the Regular expression or other function of php
Thank you very much.

Answer 1

$s = preg_replace('~(?<= ) ~', '\xc2\xa0', $s);