PHP offers count() and sizeof() functions. The count() and sizeof() both functions are used to count all elements in an array and return 0 for a variable that has been initialized with an empty array. These are the built-in functions of PHP. We can use either count() or sizeof() function to count the total number of elements present in an array.
Syntax:
count(array)
Example:-
<?php
$days = array("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
echo 'Total number of elements in the $days array is - ' . count($days);
echo "<br>";
echo 'Total number of elements in the $days array is - ' . sizeof($days);
?>
Output:-
Total number of elements in the $days array is - 7 Total number of elements in the $days array is - 7