PHP Gets the implementation code for repeating data in the array

function Fetchrepeatmemberinarray ($array) { Get an array that removes duplicate data $unique _arr = Array_unique ($array); Get an array of duplicate data $repeat _arr = Array_diff_assoc ($array, $unique _arr); return $repeat _arr; } Test Cases $array = Array ( ' Apple ', ' iphone ', ' Miui ', ' Apple ', ' Orange ', ' Orange ' ); $repeat _arr = Fetchrepeatmemberinarray ($array); Print_r ($repeat _arr); ?> Copy Code Example 2, the custom function implements this function, taking advantage of the two-time for loop. function Fetchrepeatmemberinarray ($array) { $len = count ($array); for ($i = 0; $i < $len; $i + +) { for ($j = $i + 1; $j < $len; $j + +) { if ($array [$i] = = $array [$j]) { $repeat _arr [] = $array [$i]; Break } } } return $repeat _arr; } Test Cases $array = Array ( ' Apple ', ' iphone ', ' Miui ', ' Apple ', ' Orange ', ' Orange ' ); $repeat _arr = Fetchrepeatmemberinarray ($array); Print_r ($repeat _arr); ?> Copy Code >>> you may be interested in the article: PHP Two example of removing duplicate data from an array PHP generates n non-repeating random numbers PHP to prevent the form from repeating the small example PHP Two ways to get duplicate data in an array a PHP function that removes duplicates from a two-dimensional array php to determine and remove duplicate data in the array PHP prevents the page from refreshing the repeated submission of the code a case of PHP prevents users from refreshing duplicate commits the implementation code of the repeating combination in the two-dimensional array is removed PHP Array_ Example of a unique one-dimensional array for removing duplicate values

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