剥离一个字母单词之间的空格

Question

How would you strip spaces between one letter words. Example:

• string: "T I G R U S FOO and Drezga d . o . o . New York"
• we want: "TIGRUS FOO and Drezga d.o.o. New York"

If possible preg_replace solution, sorry for not telling before.

Answer 1

Try this php code:

<?php
   $str = "T I G R U S FOO and Drezga d . o . o . New York";
   $out = preg_replace('~(\b.)\s~', "\\1", $str);
   var_dump($out);
?>

OUTPUT

string(38) "TIGRUSFOO and Drezga d. o. o. New York

UPDATE

<?php
   $str = "T I G R U S FOO and Drezga d . o . o . New York N Y";
   $s = preg_replace('~((?<=^[^\s])|(?<=\s[^\s]))\s(?=[^\s](\s|$))~', "", $str);
   var_dump($s);
?>

OUTPUT

string(40) "TIGRUS FOO and Drezga d.o.o. New York NY"

?>