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