How to count duplicate values ​​in an array in php

php counts repeated values ​​in the array, you can use php's own function array_count_values

Explanation (recommended learning: PHP programming from entry to proficiency)

array array_count_values ( array $input )array_count_values()

Returns an array, which uses the value in the input array as the key name, and the number of times the value appears in the input array as the value .

array_count_values() Example

<?php
$array = array(1, "hello", 1, "world", "hello");
print_r(array_count_values ($array));
?>

The above routine will output:

Array
(
    [1] => 2
    [hello] => 2
    [world] => 1
)

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