I want below code to be string as one array and numbers as another array. How could we do that?

array('a','b','c',1,2,3,4,5,'t','x','w')

CodePudding user response：

You could also do this in one line using array_filter()

$numbers = array_filter($arr,function($e){return is_numeric($e);});
$alphas = array_filter($arr,function($e){return !is_numeric($e);});

print_r($numbers);
print_r($alphas);

CodePudding user response：

Loop through them, check if is_numeric and add to appropriate array:

$original = array('a','b','c',1,2,3,4,5,'t','x','w');

$letters = array();
$numbers = array();

foreach($original as $element){
    if(is_numeric($element)){
        $numbers[] = $element;
    }else{
        $letters[] = $element;
    }
}

https://3v4l.org/CAvVp

CodePudding user response：

    $data = array('a','b','c',1,2,3,4,5,'t','x','w');
    $integerArray = array();
    $stringArray = array();
    $undefinedArray = array();
    foreach($data as $temp)
    {
        if(gettype($temp) == "integer")
        {
            array_push($integerArray,$temp);
        }elseif(gettype($temp) == "string"){
            array_push($stringArray,$temp);
        }else{
            array_push($undefinedArray,$temp);
        }
    } 

CodePudding user response：

Using a foreach() like in @jnko's answer will be most performant because it only iterates over the array one time.

However, if you are not concerned with micro-optimization and prefer to write concise or functional-style code, then I recommend using array_filter() with is_numeric() calls, then making key comparisons between the first result and the original array.

Code: (Demo)

$array = ['a','b',0,'c',1,2,'ee',3,4,5,'t','x','w'];
$numbers = array_filter($array, 'is_numeric');
var_export($numbers);
var_export(array_diff_key($array, $numbers));

Output:

array (
  2 => 0,
  4 => 1,
  5 => 2,
  7 => 3,
  8 => 4,
  9 => 5,
)
array (
  0 => 'a',
  1 => 'b',
  3 => 'c',
  6 => 'ee',
  10 => 't',
  11 => 'x',
  12 => 'w',
)