php Get duplicate data in array_PHP tutorial

Two days ago, I needed to find duplicate data in a php array. I summarized two methods and shared them with you here. Please pay attention
(1) Use the functions provided by php, array_unique and array_diff_assoc to achieve
[php]
function FetchRepeatMemberInArray($array) {
// Get the array with duplicate data removed
$unique_arr = array_unique ( $array );
// Get an array of duplicate data
$repeat_arr = array_diff_assoc ( $array, $unique_arr );
Return $repeat_arr;
}

// Test case
$array = array (
        'apple',
        'iphone',
       'miui',
        'apple',
        'orange',
        'orange'                                                                            );
$repeat_arr = FetchRepeatMemberInArray ( $array );
print_r ( $repeat_arr );

?>

(2) Write your own function to implement this function, using two for loops

[php]
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 case
$array = array (
        'apple',
        'iphone',
       'miui',
        'apple',
        'orange',
        'orange'                                                                            );
$repeat_arr = FetchRepeatMemberInArray ( $array );
print_r ( $repeat_arr );

?>

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www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/477959.htmlTechArticleTwo days ago, I needed to find duplicate data in the php array. I summarized two methods, here Share it with everyone, please pay attention (1) Use the functions provided by php, array_unique and a...