PHP recursive call to delete array null element method, recursive array _php tutorial

PHP recursive call to delete array null element method, recursive array

The example in this paper describes the method of PHP recursive call to delete an array null element. Share to everyone for your reference. Specific as follows:

The function can delete all empty elements in the array, including empty strings, empty arrays, and so on.

function Array_remove_empty ($arr) {$narr = array (); while (List ($key, $val) = each ($arr)) {  if (Is_array ($val   )) { $val = Array_remove_empty ($val);   Does the result array contain anything?   if (count ($val)!=0) {    //Yes:-)    $narr [$key] = $val;   }  }  else {   if (Trim ($val)! = ") {    $narr [$key] = $val;   }}  } Unset ($arr); return $narr;}

Demo Example:
The copy Code code is as follows: Array_remove_empty (Array (4, ",", "array") = Returns Array (1,2,3,4)

I hope this article is helpful to everyone's PHP programming.

http://www.bkjia.com/PHPjc/991806.html www.bkjia.com true http://www.bkjia.com/PHPjc/991806.html techarticle PHP recursive call to delete an array of empty elements of the method, recursive array This article describes the PHP recursive call to delete an array of empty elements of the method. Share to everyone for your reference. Specific as follows: ...

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