array_reduce Online
Test PHP's array_reduce() function online using real PHP 8.2. Iteratively reduce an array to a single value using a callback function. Perfect for calculating sums, concatenating strings, or transforming data structures.
array_reduce(array $array, callable $callback, mixed $initial = null): mixed PHP Array Input
Enter the array to reduce
Initial Value (Optional)
Starting value for the accumulator
Enter valid PHP value (e.g., 0, "", [])
Callback Function
Define how to reduce the array
PHP Code
This is the actual PHP code that will be executed
Common Examples
array_reduce() Function Guide
How It Works
The array_reduce() function applies a callback function to each element of the array together with an accumulator (carry) value, reducing the array to a single value.
This tool is a free online PHP compiler that runs directly in your browser. It allows you to execute array_reduce() functions instantly without setting up a local environment, making it perfect for quick testing and learning.
Parameters
- $array: The input array
- $callback: Function taking
($carry, $item) - $initial: Initial value of the accumulator (optional but recommended)
💡 Tip: Always set an $initial value to ensure consistent results, especially if the array might be empty.
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