Array Count

Arrays group related values, and count reports how many elements are in the group.

array_count.php

<?php
$extra = ;
$count = count([2, 3, $extra]);
$total = 2 + 3 + $extra;
$average = $total / $count;

echo "extra=" . $extra . "\n";
echo "count=" . $count . "\n";
echo "total=" . $total . "\n";
echo "average=" . $average . "\n";

<?php
$extra = ;
$count = count([2, 3, $extra]);
$total = 2 + 3 + $extra;
$average = $total / $count;

echo "extra=" . $extra . "\n";
echo "count=" . $count . "\n";
echo "total=" . $total . "\n";
echo "average=" . $average . "\n";

<?php
$extra = ;
$count = count([2, 3, $extra]);
$total = 2 + 3 + $extra;
$average = $total / $count;

echo "extra=" . $extra . "\n";
echo "count=" . $count . "\n";
echo "total=" . $total . "\n";
echo "average=" . $average . "\n";

array length The length of an array is the number of values it currently contains.