How Can I Efficiently Count and Display Unique Value Occurrences in a PHP Array?

Determining and Displaying Unique Value Occurrences Within an Array

When working with arrays, understanding the distribution of values is crucial. Counting and displaying occurrences of unique values allows you to identify patterns, trends, and the presence of duplicates.

PHP Solution

To achieve this in PHP, consider utilizing the array_count_values() function, which calculates the frequency of values in an array. It generates a new array with the original values as keys and their respective counts as values.

Example

Consider the following array:

$array = [
    'apple',
    'orange',
    'pear',
    'banana',
    'apple',
    'pear',
    'kiwi',
    'kiwi',
    'kiwi'
];

Implementation

$unique_counts = array_count_values($array);

foreach ($unique_counts as $value => $count) {
    echo "$value ($count)\n";
}

Output

This code will print:

apple (2)
orange
pear (2)
banana
kiwi (3)

In Summary

By leveraging the array_count_values() function, you can efficiently count the occurrences of unique values within an array. This allows you to retrieve valuable insights into the distribution of your data, enabling further analysis and decision-making.

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