How can I trim all strings in an Array?

Question

If I have this array:

array("  hey  ", "bla  ", "  test");

and I want to trim all of them, How can I do that?

The array after the trim:

array("hey", "bla", "test");

score 489 · Accepted Answer · answered Jul 20 '11 at 22:48

489

array_map() is what you need:

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

answered Jul 20 '11 at 22:48

zerkms

11

but, it will remove the associative array and return null. – Imran Khan Jun 17 '14 at 06:49
@ime: it's not obvious what you mean – zerkms Jun 17 '14 at 07:24
6

exp: array('a'=>' A', 'b'=>' B ', 'c'=>array(0=>'2')); it will return array('a'=>' A', 'b'=>' B ', 'c'=>null) – Imran Khan Jun 17 '14 at 10:49
4

@ime: that's what it expected to return actually. Garbage-in garbage-out paradigm in action. – zerkms Jun 17 '14 at 10:50
if value of any index contain another array, it returns error. how to solve it... – ReNiSh AR Mar 06 '15 at 16:17
4

@ReNiShAR please ask another question. This answer was only about an array that consists of strings exclusively. – zerkms Mar 06 '15 at 21:45
@zerkms What if i have a associative array and don't want to use loop? – Rana Ghosh Feb 09 '17 at 11:44
@RanaGhosh not sure what your problem is. You can use `array_map` with associative arrays. https://3v4l.org/FG8vf – zerkms Feb 09 '17 at 20:27

score 70 · Answer 2 · answered Jul 20 '11 at 22:48

70

array_map() applies a given callback to every value of an array and return the results as a new array.

$array = array_map('trim', $array);

answered Jul 20 '11 at 22:48

KingCrunch

2 Answers2