10 recommended articles about array_unique()

Our last article talked about "How to delete the head, tail, and any element in a PHP array." In this article, we talk about deleting duplicate elements in the array through the array_unique() function. The array_unique() function sorts the values ​​of the array elements as strings, and then only retains the first key name for each value and ignores all subsequent key names, which is to delete duplicate elements in the array. The syntax format is as follows: array arry_unique( array array) The parameter array is the input array. The following example uses the array_unique() function to delete duplicate elements in the array. The specific example code is as follows:

1. 10 recommended articles about the php array_unique() function

Introduction: Our previous article talked about "How to delete the head, tail, and any element in a PHP array", this article We talk about deleting duplicate elements in the array through the array_unique() function. The array_unique() function sorts the values ​​of the array elements as strings, and then only retains the first key name for each value and ignores all subsequent key names, which is deletion. Duplicate elements in the array, the syntax format is as follows: array arry_unique(array array) The parameter array is the input array...

2. How to delete elements in a PHP array Repeating elements

Introduction: array_unique() function, sorts the values ​​of the array elements as strings, and then Only retain the first key name for each value and ignore all subsequent key names, which is to delete duplicate elements in the array,

3. array_unique of php array function sequence () - Remove duplicate element values ​​​​from the array

##Introduction: array_unique() function removes elements from the array Duplicate values ​​and return the result array. When the values ​​of several array elements are equal, only the first element is retained and the other elements are deleted. A faster way to achieve deduplication in PHP arrays

##Introduction: Using PHP’s array_unique() function allows you to Pass an array, then remove duplicate values, and return an array with unique values. Through this article, I will introduce to you a faster implementation of PHP array deduplication. Friends who need it can refer to this article

5.

php array_flip() deletes duplicate elements from an array

##Introduction: In PHP There is an available function for removing duplicate elements in an array, which is array_unique(), but it is not the most efficient method. Using the array_flip() function will be about five times faster than array_uniqure()

6.

php array function sequence array_unique() - remove duplicate element values ​​in the array

Introduction: The array_unique() function removes duplicate values ​​from the array and returns the result array. When the values ​​of several array elements are equal, only the first element is retained and the other elements are deleted.

7.

php uses the array_flip() function to delete duplicate elements in the array

Introduction: Summary: In PHP, there is an available function to delete duplicate elements in an array, which is array_unique(), but it is not the most efficient method. Using the array_flip() function will be better than array_unique() About five times faster. ...

8. php Two array functions self-understanding php declare array php create array php array sequence

Introduction: array function, php:php Two array functions self-understanding: PHP array_unique() function removes duplicates in the array: "red", "b"=>"green", "c"=>"red "); print_r(array_unique($a)); ?>array_unique() function removes duplicates from an array and returns the resulting array. When several array elements are equal, only the first element is retained and the other elements are deleted. The key names in the returned array remain unchanged. Note: The retained array will remain at

9. php array function sequence array_unique - remove duplicate element values ​​in the array

Introduction:: PHP array function sequence array_unique - remove duplicate element values ​​​​in the array: array_unique() Definition and usage array_unique() function removes duplicate values ​​​​in the array and returns the result array. When the values ​​of several array elements are equal, only the first element is retained and the other elements are deleted. The key names in the returned array remain unchanged. Syntax array_unique(array) Parameter Description array Required. Specifies the input array. Description array_unique() first sorts the values ​​as strings, then only retains the first encountered key name for each value, and then ignores

10. uniqueid php Determine whether the same value exists in the array array_unique

Introduction: uniqueid:uniqueid Determine whether the same value exists in the array array_unique under PHP: array_unique(PHP 4 >= 4.0. 1, PHP 5) array_unique -- Remove duplicate values ​​from an array Description array array_unique ( array array ) array_unique() accepts array as input and returns a new array without duplicate values. Note that the key names remain unchanged. array_unique() first sorts the values ​​as strings, then only retains the first encountered key name for each value, and then

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