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array_count_values
Array_count_values function returns a new array where the keys are the values of the original array and the values are the numbers of occurrences (ie the number of times the original value is in the array).
The function in question has only one parameter, the array on which to operate.
Here's an example:
$ A = array ("Mouse", "Cat", "Dog", "Mouse", "Dog", "Dog");
print_r (array_count_values ($ a));
The output of the code above will be:
Array ( [Cat] => 1 [Dog] => 3 [Mouse] => 2 )
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