删除PHP中单词之间的空间

Question

How do I remove space between two words in php. For example 'Hello World' should return 'HelloWorld' . I tried using trim() but it did not work.

Answer 1

您可以使用str_replace ：

$str = str_replace(' ', '', $str);

Answer 2

您也可以这样做

$string = preg_replace('/\s+/', '', $string);

Answer 3

trim used for remove spaces at begin and end of string. look here

try it

preg_replace("/\s+/", "", $str);

Answer 4

Complete code:

$string="Hello World";
$string = str_replace(' ', '', $string);

Answer 5

Try this:

function space_trim($st) {
        return @str_replace(" ","",$st);
    }
    echo space_trim("   a fff     jjj    ");