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1. www.php.net › manual › enPHP: array_unique - Manual

   www.php.net › manual › en

   Takes an input array and returns a new array without duplicate values. Note that keys are preserved. If multiple elements compare equal under the given flags, then the key and value of the first equal element will be retained.

   • Usort

     Sort an array by values using a user-defined comparison...

   • Shuffle

     Caution This function uses the global Mt19937 (“Mersenne...

   • Extract

     Parameters ¶ array An associative array. This function...

   • Array

     Arrays ¶ For a list of all array functions, see the array...

   • Key

     Return Values ¶ The key () function simply returns the key...

   • Each

     Return the current key and value pair from an array and...

   • Uasort

     Sorts array in place such that its keys maintain their...

   • Arsort

     Sorts array in place in descending order, such that its keys...

2. www.w3schools.com › php › func_array_uniquePHP array_unique () Function - W3Schools

   www.w3schools.com › php › func_array_unique

   Definition and Usage The array_unique () function removes duplicate values from an array. If two or more array values are the same, the first appearance will be kept and the other will be removed. Note: The returned array will keep the first array item's key type.

3. www.geeksforgeeks.org › php › php-array_unique-functionPHP array_unique () Function - GeeksforGeeks

   www.geeksforgeeks.org › php › php-array_unique-function

   Sep 16, 2024 · Return Value: The array_unique () function returns the filtered array after removing all duplicates from the array. Below programs illustrate the array_unique () function in PHP: Example : In this example we removes duplicate values from the array a using array_unique () and prints the result.

4. www.tutorialspoint.com › php › php_function_array_uniquePHP array_unique Function - Online Tutorials Library

   www.tutorialspoint.com › php › php_function_array_unique

   Discover how to effectively use the PHP array_unique function to filter out duplicate values in arrays. Get practical insights and examples.

5. www.zetcode.com › php-array › array-uniquePHP array_unique - Remove Duplicates in PHP Arrays - ZetCode

   www.zetcode.com › php-array › array-unique

   Mar 13, 2025 · PHP array_unique function tutorial shows how to remove duplicate values from arrays in PHP. Learn array_unique with practical examples.

6. reintech.io › blog › understanding-implementing-phpUnderstanding and Implementing PHP's `array_unique ...

   reintech.io › blog › understanding-implementing-php

   Apr 14, 2023 · A comprehensive guide for software developers on understanding and implementing PHP's array_unique() function to remove duplicate values from an array.

7. People also ask

   What is array_unique function in PHP?

   • The PHP array_unique function removes duplicate values from an array. It's useful for cleaning data and ensuring unique elements. The array_unique function takes an array and returns a new array without duplicate values. It preserves the keys of the first occurrence. Syntax: array_unique(array $array, int $flags = SORT_STRING): array.

   PHP array_unique - Remove Duplicates in PHP Arrays - ZetCode

   www.zetcode.com/php-array/array-unique/

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   How to remove duplicate values from an array in PHP?

   • ❮ PHP Array Reference Remove duplicate values from an array: The array_unique () function removes duplicate values from an array. If two or more array values are the same, the first appearance will be kept and the other will be removed. Note: The returned array will keep the first array item's key type.

   PHP array_unique () Function - W3Schools

   www.w3schools.com/php/func_array_unique.asp

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   What is array_unique in JavaScript?

   • The array_unique () is used to remove duplicate values from an array. Note: The keys are preserved. array_unique () sorts the values treated as a string at first, then will keep the first key encountered for every value, and ignore all following keys. It does not mean that the key of the first related value from the unsorted array will be kept.

   PHP : array_unique() function - w3resource

   www.w3resource.com/php/function-reference/array_unique.php

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   What does array_unique() do?

   • The array_unique () function removes duplicate values from an array. If two or more array values are the same, the first appearance will be kept and the other will be removed. Note: The returned array will keep the first array item's key type. Required. Specifying an array Optional. Specifies how to compare the array elements/items.

   PHP array_unique () Function - W3Schools

   www.w3schools.com/php/func_array_unique.asp

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8. www.w3resource.com › array_uniquePHP: array_unique () function - w3resource

   www.w3resource.com › array_unique

   Aug 19, 2022 · PHP: Removes duplicate values from an array The array_unique () is used to remove duplicate values from an array. Note: The keys are preserved. array_unique () sorts the values treated as a string at first, then will keep the first key encountered for every value, and ignore all following keys. It does not mean that the key of the first related value from the unsorted array will be kept ...