How can I remove the last empty space from my string inside array?

Question

I am creating a array from a file:

$handle = fopen("inputfile.txt", "r");
if ($handle) {
    while (($str = fgets($handle)) !== false) {
           if (strlen($str) && $str[0] == '#') {
                    $pdate = substr($str, 1);
                    $date = rtrim($pdate);
                    $formatted = DateTime::createFromFormat('* M d H:i:s T Y',$date);
                }
                rtrim ($str, "\n");
                $exp = explode ('=', $str);
                if(count($exp) == 2){
                    $exp2 = explode('.', $exp[0]);  
                    if( count($exp2) == 2 ) {
                        if($exp2[1] == "dateTime"){
                            $s = str_replace("\\","",$exp[1]);
                            $d = strtotime($s);
                            $dateTime = date('Y-m-d H:i:s', $d);
                            $properties [$exp2[0]][$exp2[1]] = $dateTime;
                        } else {
                            $properties [$exp2[0]][$exp2[1]] = $exp[1];
                        }
                    } else {
                        $properties [$exp[0]] = $exp[1];
                    }
                } 
    }
    var_dump($properties); 
    fclose($handle);
} else {
    // error opening the file.
} 

var_dump($properties);

But in my result array there are always white spaces at the end of the values and I cannot get rid of them:

array(5) {
  ["folder"]=>
  array(5) {
    ["dateTime"]=>
    string(19) "2016-10-12 19:46:25"
    ["one"]=>
    string(47) "abc def
"
    ["two"]=>
    string(33) "ghi jk
"
    ["three"]=>
    string(150) "lm no
"
    ["four"]=>
    string(8) "pqr st
"
  }
}

@DevsiOdedra I did, it is in the code. See? But nevertheless not working — peace_love, Apr 26 '18 at 12:55
You have `\r\n` characters in there, use `rtrim()` http://php.net/manual/en/function.rtrim.php as suggested above — pokeybit, Apr 26 '18 at 12:56
You need to save the string as well. `$str = rtrim($str);`. The string isn't passed as a reference. New lines are covered by trim() as default. No need to define it manually. — M. Eriksson, Apr 26 '18 at 12:56
You're missing to assign the result of `rtrim ($str, "\n");` should be `$str = rtrim ($str, "\n");` — Syscall, Apr 26 '18 at 12:57
Possible duplicate of [Remove excess whitespace from within a string](https://stackoverflow.com/questions/1703320/remove-excess-whitespace-from-within-a-string) — William Perron, Apr 26 '18 at 13:08

Syscall · Accepted Answer · 2018-04-26T13:18:21.817

6

You're missing to assign the result of rtrim ($str, "\n");. So your variable $str is not changed.

$str = rtrim($str, "\n");

Or, by default, to remove all whitespace characters (" \t\n\r\0\x0B"):

$str = rtrim($str);

edited Apr 26 '18 at 13:18

answered Apr 26 '18 at 13:00

Syscall

19,327
10
37
52

Angelure · Answer 2 · 2018-04-26T13:04:31.687

2

You can Use the rtrim() function to remove white spaces at beginning and end of your strings, but it is used one by one. You can also reffere to the response to this post : How can I trim all strings in an Array?

Tha says that you can use array_map and trim as this :

$result = array_map('rtrim', $source_array);

edited Apr 26 '18 at 13:04

answered Apr 26 '18 at 12:56

Angelure

57
7

He/she has new lines there also `trim()` will not suffice – pokeybit Apr 26 '18 at 12:56
@pokeybit - Yes it is. Demo: https://3v4l.org/u1HO4 – M. Eriksson Apr 26 '18 at 13:00
@pokeybit this it is: https://3v4l.org/PvEq4 – mickmackusa Apr 26 '18 at 13:03
Apologies I removed my downvote @Angelure – pokeybit Apr 26 '18 at 13:15

How can I remove the last empty space from my string inside array?

2 Answers2