関連ワード:  php check if array has same values    php check if array has duplicate values    php check if multidimensional array contains same values    php check if two array has same values    php check if array contains values    php check if array contains multiple values    php check if array contains empty values    php check if array contains value greater than    php check if array has null values    php check if array has any values  
結果 : php check if array contains same values