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Is there a version of the PHP array class where all the elements must be distinct like, for instance, sets in Python?
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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.
You can use the PHP array_unique() function and PHP array_merge() function together to merge two arrays into one array without duplicate values in PHP.
The array_unique() is a built-in function in PHP and this function removes duplicate values from an array. If there are multiple elements in the array with same values then the first appearing element will be kept and all other occurrences of this element will be removed from the array.
The in_array() function is an inbuilt function in PHP that is used to check whether a given value exists in an array or not. It returns TRUE if the given value is found in the given array, and FALSE otherwise.
Nope. You could fake it by using an associative array where the keys are the elements in the "set" and the values are ignored.
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