remove spaces in a array php

Question

for this array,

Array ( 
  [0] => 'HOST:' 
  [1] => 'killbill' 
  [2] =>  
  [3] =>  
  [4] =>  
  [5] =>  
  [6] =>  
  [7] => 
  [8] => 
  [9] => 
  [10] => 
  [11] => 'Loss%' 
  [12] => 
  [13] => 
  [14] => 'Snt' 
  [15] => 
  [16] => 
  [17] => 'Last' 
  [18] => 
  [19] => 
  [20] =>'id'
)

it has empty values.by using this code it gives

foreach($array as $key => $subarray) {
    $array[$key] = preg_grep('/^$/', $subarray, PREG_GREP_INVERT);
}

array ( 
  [0] => HOST: 
  [1] => killbill 
  [11] => Loss% 
  [14] => Snt 
  [17] => Last 
  [20] =>id
)

that means it removes all the spaces. but it has the original key values .(compair above one and bellow one. then can get a clear idea what i'm saying).but i want to have it like this.

array ( 
  [0] => 'HOST:' 
  [1] => 'killbill' 
  [2] => 'Loss%'
  [3] => 'Snt' 
  [4] => 'Last' 
  [5] => 'id'
)

key values as 1,2,3,4.... so how could i get that.

array_filter() without a callback will remove empty elements and retain associativity; then pass that to array_values() to reset the keys from 0 — Mark Baker
– Mark Baker, Commented Apr 2, 2013 at 11:54
array_filter() is a good plan, but note that you will still probably want a callback (depending on your definition of "empty") because without one it will remove any falsey value, notably it will remove '0' which you likely want to keep since it looks like you are working with ping results. — DaveRandom
– DaveRandom, Commented Apr 2, 2013 at 11:56
this is a question that i have to faced from @Felix Kling 's answer. answered Apr 21 '11 at 22:38- [link]stackoverflow.com/questions/5750407/… — Thusitha Sumanadasa
– Thusitha Sumanadasa, Commented Apr 2, 2013 at 11:59

egig · Accepted Answer · 2013-04-02 12:06:22Z

6

simply use this instead of Foreach

array_values(array_filter($array));

that will remove the space and reorder your array.

look: http://codepad.org/howl3Opj

edited Apr 2, 2013 at 12:06

answered Apr 2, 2013 at 11:55

egig

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1 Comment

egig Over a year ago

anytime... :D, Happy coding !

Spudley · Accepted Answer · 2013-04-02 11:58:00Z

1

Just use array_filter().

$array = array_filter($array);

That will remove all the empty values -- ie blank, null, false, zero.

If you only want to remove values that are empty strings and keep other empty values (eg zero), you can specify the second parameter for array_filter(), which allows you to define a function to specify which elements should be filtered.

$array = array_filter($array, function($val) {return $val!=='';});

Hope that helps.

answered Apr 2, 2013 at 11:58

Spudley

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3 Comments

thecodedeveloper.com Over a year ago

@Spudley that part of code is not working $array = array_filter($array, function($val) {return $val!=='';}); , giving error Parse error: syntax error, unexpected T_FUNCTION

Spudley Over a year ago

@vikastyagi - what version of PHP are you using? This code requires PHP v5.3 or higher. The error you've given looks like you're trying to run it in PHP 5.2.

thecodedeveloper.com Over a year ago

@Spudley you are right, code is working on php version 5.3 thanks

Praveen kalal · Accepted Answer · 2013-04-02 11:59:52Z

0

try this function it will help you to sort out the issue

$arr = array_map('array_values', $arr);

edited Apr 2, 2013 at 11:59

answered Apr 2, 2013 at 11:54

Praveen kalal

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Comments

thecodedeveloper.com · Accepted Answer · 2013-04-26 11:54:45Z

0

Use array_diff function

<?php

   $array_space = array(0,3,4,45,12,"",54,23);

   $remove = array("");

   print_r(array_diff($array_space,$remove));

?>

See Output here

answered Apr 26, 2013 at 11:54

thecodedeveloper.com

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Eran Lipshtein · Accepted Answer · 2019-12-01 11:00:03Z

0

at start you need to take the array i gave him a name $arrWords

$arrWords = array_filter($arrWords, 'trim');

after i clean all the empty spaces i will make new array keys

$arrWords = array_values($arrWords);

answered Dec 1, 2019 at 11:00

Eran Lipshtein

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