array_walkLearning Curve- Perfect Tutorial for the beginers | Learning Curve- Perfect Tutorial for the beginers

What array_walk,array_slice function does

array_walk function will run each array element inside a function see the below examples

 function testarraywalk($value,$key)
{
echo $value;
echo $key;
echo "<br>";
}
$myArray=array("0"=>"vasanthan","1"=>"mydoubts.in","2"=>"wordsgallery.com");
array_walk($myArray,"testarraywalk");
 
//output

//vasanthan0
//mydoubts.in1
//wordsgallery.com2

function testarraywalk($value,$key)

{

echo $value;

echo $key;

echo "<br>";

}

$myArray=array("0"=>"vasanthan","1"=>"mydoubts.in","2"=>"wordsgallery.com");

array_walk($myArray,"testarraywalk");

//output

//vasanthan0

//mydoubts.in1

//wordsgallery.com2

array_slice() function will slice the array from one element to other for example

$myArray=array("vasanthan","mydoubts.in","wordsgallery.com");
print_r(array_slice($myArray,1,2,true));
echo "<br>";
print_r(array_slice($myArray,1,2,false));
 
// output

Array ( [1] => mydoubts.in [2] => wordsgallery.com )
Array ( [0] => mydoubts.in [1] => wordsgallery.com ) 
?>

$myArray=array("vasanthan","mydoubts.in","wordsgallery.com");

print_r(array_slice($myArray,1,2,true));

echo "<br>";

print_r(array_slice($myArray,1,2,false));

// output

Array ( [1] => mydoubts.in [2] => wordsgallery.com )

Array ( [0] => mydoubts.in [1] => wordsgallery.com )