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How Can PHP\'s `array_map` Function Mimic Python\'s `zip()` Functionality?

Susan Sarandon
Susan SarandonOriginal
2024-11-26 14:44:13332browse

How Can PHP's `array_map` Function Mimic Python's `zip()` Functionality?

PHP's Array_map: An Alternative to Python's Zip Function

Python's zip() function allows you to combine multiple arrays into a single list of tuples, providing an effective way to pair corresponding elements. PHP doesn't offer an exact equivalent, but array_map can be used to achieve a similar result.

Using array_map for Array Zipping

To "zip" arrays using array_map, supply null as the first argument, followed by the arrays you want to merge:

array_map(null, $array1, $array2, $array3, ...);

# Example
$result = array_map(null, [1, 2, 3], ['a', 'b', 'c'], [true, false, true]);

This will return an array of tuples, where each tuple contains corresponding elements from the input arrays:

[
    [1, 'a', true],
    [2, 'b', false],
    [3, 'c', true]
]

Handling Unequal Array Lengths

If some of the input arrays are shorter than the others, array_map will pad the shorter arrays with null values. This differs from Python's zip() function, which returns a result no longer than the shortest array.

To handle different array lengths in PHP, consider using custom logic or third-party libraries.

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