php printing array element with space

Question

here is my code, I want to print single space between each array element problem i am facing is m getting space on every element but there is space for 1st element also

$handle = fopen ("php://stdin","r");
fscanf($handle,"%d",$n);
$arr_temp = fgets($handle);
$arr = explode(" ",$arr_temp);
array_walk($arr,'intval');
for($i=sizeof($arr);$i>=0;$i--)
{

  echo $arr[$i]." ";

} 

 ?>

my output is " 2 3 4 1" i want "2 3 4 1" there is space in the 1st element.

Add isset($arr[$i])&&$arr[$i]!=""?$arr[$i]." ":"" to ignore not set and blank value. — Jaydeep Mor
– Jaydeep Mor, Commented Jul 11, 2017 at 4:34

Jigar Shah · Accepted Answer · 2017-07-11 04:36:21Z

1

use ltrim() it will remove space from left end

read documentation for further details

edited Jul 11, 2017 at 4:36

answered Jul 11, 2017 at 4:34

Jigar Shah

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2 Comments

Will B. Over a year ago

@pranavmandlik please mark the answer as accepted so other developers know it has been answered.

user5299698 Over a year ago

yes sure but its saying you can accept answer in 10 minutes

Anandhu Nadesh · Accepted Answer · 2017-07-11 04:55:32Z

0

ltrim will remove spaces from left side

echo ltrim($arr[$i])." ";

answered Jul 11, 2017 at 4:55

Anandhu Nadesh

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