Returning array of given keys from an array
//source array
$source = array('key_1'=>'value_1','key_2'=>'value_2','key_3'=>'value_3','key_4'=>'value_4','key_5'=>'value_5');
// Required keys
$filter1 = array('key_1','key_2');
$filter2 = array('key_3','key_4','key_5');
Array(
['key_1'] => 'value_1',
['key_2'] =>'value_2'
) // First $filter1 array
Array(
['key_3'] => 'value_3',
['key_4'] =>'value_4',
['key_5'] =>'value_5',
) // Second $filter_2 array
Your Answer
1 Answer
function array_filter($source,$filters){
$return = array();
foreach($filters as $filter){
if(isset($source[$filter]))$return[$filter] = $source[$filter];
}
return $source;
}
array_filter($source,$filter1);
2 Answer
array_intersect_key( $source , array_flip( $filter1 )); /*For first $filter1 array.*/
array_intersect_key( $source , array_flip( $filter2 )) ;
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