filter Multi-Dimensional array from single array

Question

i have Multi-Dimensional array and i have another one that have some of the id that exist in the first Multi-Dimensional

now what i need is to use filter function to filter any element that exist in the second single array

my Multi-Dimensional array is :

 $Base = array
  (
  array("aa",1),
  array("bb",2),
  array("cc",3),
  array("dd",4),
  array("ee",5),
  array("ff",6),
  array("gg",7),
  );

and the another one is :

  $child = array(1,4,5);

what i expect now to filter the array and get

$new = array
  (
  array("aa",1),
  array("dd",4),
  array("ee",5) 
 );

Have a look at array_filter. You can use a callback that has $child available to it and just return in_array($arg[1], $child). — Jonathan Kuhn
– Jonathan Kuhn, Commented Nov 10, 2015 at 17:50
yes that what i need but i couldn't get the logic idea to return the true value — Jessica Wallace
– Jessica Wallace, Commented Nov 10, 2015 at 17:51

Jonathan Kuhn · Accepted Answer · 2015-11-10 17:53:49Z

1

This should work for you.

$Base = array(
  array("aa",1),
  array("bb",2),
  array("cc",3),
  array("dd",4),
  array("ee",5),
  array("ff",6),
  array("gg",7),
);
$child = array(1,4,5);

$filtered = array_filter($Base, function($arg) use ($child){
    //return if arg1 is in $child
    return in_array($arg[1], $child);
});

Demo: http://codepad.viper-7.com/qqcl3e

answered Nov 10, 2015 at 17:53

Jonathan Kuhn

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