세상과 연결

특정 첨자로 되어 있는 값만 출력하고 싶을 경우 array_column (PHP 5 >= 5.5.0, PHP 7)array_column — Return the values from a single column in the input array Description ¶ array array_column ( array $input , mixed $column_key [, mixed $index_key = null ] )array_column() returns the values from a single column of the input, identified by the column_key. Optionally, an index_key may be provided to index the values in t..

A배열에서 B 배열에 있는 값을 제외한 A값을 출력합니다.array_diff (PHP 4 >= 4.0.1, PHP 5, PHP 7)array_diff — Computes the difference of arrays Description ¶ array array_diff ( array $array1 , array $array2 [, array $... ] )Compares array1 against one or more other arrays and returns the values in array1 that are not present in any of the other arrays. Parameters ¶ array1The array to compare from array2An array to comp..

array_flip 배열의 값과 첨자 바꾸기 (PHP 4, PHP 5, PHP 7) array_flip — Exchanges all keys with their associated values in an array Description ¶ array array_flip ( array $array ) array_flip() returns an array in flip order, i.e. keys from array become values and values from array become keys. Note that the values of array need to be valid keys, i.e. they need to be either integer or string. A warning will ..