Frequency of values inside an arrayWe can count the number of time elements are present inside an array by using array_count_values function in php. This function returns another array which stores the values ( or elements ) of the input array and its frequency or the number of occurrence of the value.
This function array_count_values works similar to group by sql query where we collect unique records with number of occurrence in a table
Here is the syntax of this function.
Let us try one example to understand how this works.
The output of above code will be