how to output only the last 4 items of array in a for loop?

[tony007]

hi all i got an array that has dynamic number of elements for example one time it has 10 items one time 20 items .But i am only intrested in last 4 items. how i can print those last 4 items inside for loop ?

for($i = 0; $i < count($foo2[1]); $i++)
{


} 

[akhileshbc]

If you want to iterate through each element, then you could use the foreach.

Some examples:

// Array
$arr = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h');

// 1. Using ForEach loop to print all the elements
echo '<br /> Using ForEach to print all the elements: <br />';
foreach($arr as $ele)
{
    echo $ele . ' ';
}

// 2. Using For loop to print the last 4 elements
echo '<br /><br /> Using For loop to print the last 4 elements: <br />';
for($i = (count($arr)-4);$i<count($arr); $i++)
{
    echo $arr[$i] . ' ';
}

// 3. Using array_slice() to slice the last 4 elements and then printing
echo '<br /><br /> Using array_slice() to slice the last 4 elements and then printing: <br />';
$temparr = array_slice($arr, -4, 4);
foreach($temparr as $ele)
{
    echo $ele . ' ';
} 

Reference:

• foreach
• array_slice()

[ankifreeze]

do you want output only last 4 items in looping? try this

$total= count($foo2[1]);

for($i = $total-4; $i < count($foo2[1]); $i++) 
{ 
echo $i;

} 

[penagate]

In case the array contains less than four elements...

$n = count($foo2[1]);
for ($i = max(0, $n - 4); $i < $n; ++$i)
{
  //...
}