应该替换数组内的值

Question

This is the array given

$arr = array(',12,10',',9,10');

I want to remove the first blank element from the starting and the new array should be

$arr = array('12,10','9,10');

Answer 1

You can do it with trim or rtrim

array_map(function ($s) { return ltrim($s, ','); }, $arr);

Or

array_map(function ($s) { return trim($s, ','); }, $arr);

Output:- https://eval.in/941395

Note:- trim() will remove leading and trailing extra comma from each array element