10 recommended articles about array_diff()

array_diff() Function meaning: array_diff() function returns the difference array of two arrays. This array contains all keys that are in the array being compared, but are not in any of the other parameter arrays. In the return array, the key name remains unchanged. For example: "red","b"=>"green","c"=>"blue","d"=>"yellow"); $a2=array("e"=>"red","f"=>"green",&q

1. Definition and usage of php array_diff function

#Introduction: array_diff() Function meaning: The array_diff() function returns the difference array of two arrays. Includes all key values ​​that are in the compared array but not in any other parameter array. In the returned array, the key names remain unchanged. For example:

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Detailed explanation of the timeout bug in PHP's array_diff() function when processing large arrays

Introduction : The array_diff() function of PHP 5.2.6 and above takes a very long time when processing large arrays. This bug has been officially confirmed; before this problem is fixed or when we cannot control the PHP version, you can use this article Methods provided

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serializearray PHP’s array_diff function efficiency issues when processing large arrays

Introduction: Serializearray: The Array_Diff function of the Serializearray PHP is efficient.

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Application of PHP array_diff

Introduction:: Application of PHP array_diff: Definition and usage: array_diff() function returns two Array of differences. This array includes all keys that are in the compared array but are not in any other argument array. The key names remain unchanged in the returned array. .);Argument description array1 required. array2 required for comparison. array3 optional for other arrays to compare against

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PHP's array_diff () function The efficiency problem when processing large arrays The efficiency problem of PHP's array_diff() function when processing large arrays. The method copied by cisa to the PHP official BUG page is as follows: ?php /** * Solve the problem of the array_diff() function in PHP 5.2.6 and above * It takes a long time to spend when the big array is long. #Introduction: php explode() array_diff() implode() three functions. $ STR = Array 1, array 2, array 3, array 4; $ array = explode (,, $ str); // Stock the regular string into the array of the array of the array to divide the string into array. Syntax explode(separator,string,li

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php-Arrays function-array_diff-calculate the difference set of arrays_PHP tutorial

Introduction: php-Arrays function-array_diff-calculates the difference of an array. The array_diff() function calculates the difference of an array [Function] This function will return an array that contains everything in array1 but not in others. The value in any parameter array. Note the original ##8.

Introduction to the union, intersection and difference functions of arrays in php_PHP tutorial

Introduction: Introduction to the union, intersection and difference functions of arrays in PHP. In php, if I want to perform union, intersection and difference operations on two arrays, we can directly use php's own functions to operate such as array_merge(), array_intersect(), array_diff(). //Calculation

9. Learn a new PHP function every day (2) array_diff()/array_diff_key()/array_diff_assoc()_PHP tutorial

Introduction: Learn a new PHP function every day (2) array_diff()/array_diff_key()/array_diff_assoc(). Learn a new PHP function every day (2) array_diff()/array_diff_key()/array_diff_assoc() array_diff( array array1, array array2 [, array ] ) Description array_diff() returns an array

10. Why does using array_diff() to compare the difference between two arrays only return one different element?

Introduction: Why does using array_diff() to compare the difference between two arrays return only one different element?

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