\u899a\u3048\u306a\u304f\u3066\u3082\u3044\u3044\u304c\u3001\u899a\u3048\u308b\u3068\u5c11\u3057\u30af\u30fc\u30eb\u306b\u66f8\u3051\u308b array_filter \u3002<\/p>\n
PHP\u306e\u4ed5\u69d8\u3060\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u3044\u3066\u3042\u308a\u307e\u3059\u3002<\/p>\n
array array_filter ( array $array [, callable $callback [, int $flag = 0 ]] )<\/pre>\narray_fileter\u306f\u3001\u914d\u5217\u306b\u6761\u4ef6\u3092\u4e0e\u3048\u3066\u3001\u7d5e\u308a\u8fbc\u3093\u3060\u914d\u5217\u3092\u8fd4\u3059\u306e\u304c\u76ee\u7684\u3067\u3059\u3002
\n\u306a\u306e\u3067\u3001\u6700\u521d\u306e\u914d\u5217\u306e\u4e2d\u306b\u5165\u3063\u3066\u3044\u308b\u3082\u306e\u3068\u9055\u3046\u3082\u306e\u304c\u8fd4\u3063\u3066\u304f\u308b\u3053\u3068\u306f\u7121\u3044\u3067\u3059\u3002<\/p>\n\u7c21\u5358\u306a\u4f7f\u3044\u65b9\u3002<\/h2>\n
0\u3088\u308a\u5927\u304d\u3044\u6570\u5b57\u306e\u307f\u306e\u914d\u5217\u306b\u3057\u307e\u3059\u3002<\/p>\n
$simpleArr = [1, 2, -1, 3, 0 -4];\r\n\r\n$tmpArr = array_filter($simpleArr, 'higherThanZero');\r\nprint_r($tmpArr);\r\n\r\nfunction higherThanZero($val){\r\n\tif($val > 0) {\r\n\t\treturn true;\r\n\t}\r\n}<\/pre>\n\u51fa\u529b<\/p>\n
Array\r\n(\r\n [0] => 1\r\n [1] => 2\r\n [3] => 3\r\n)\r\n<\/pre>\n\u7b2c1\u5f15\u6570\u306b\u914d\u5217\u3001\u7b2c2\u5f15\u6570\u306b\u95a2\u6570\u540d\u3002<\/p>\n
\u95a2\u6570\u306e\u5f15\u6570\u306b\u6b21\u3005\u3068\u914d\u5217\u306e\u4e2d\u8eab\u304c\u6e21\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u6761\u4ef6\u306etrue\u304c\u8fd4\u3063\u305f\u3082\u306e\u3060\u3051\u304c\u3001\u914d\u5217\u306b\u6b8b\u308a\u307e\u3059\u3002<\/p>\n
foreach\u3060\u3068<\/h2>\n
array_filter\u306fforeach\u306b\u7f6e\u304d\u63db\u3048\u308c\u307e\u3059\u3002<\/p>\n
$tmpArr = [];\r\nforeach ($simpleArr as $key=>$val){\r\n\tif($val > 0){\r\n\t\t$tmpArr[$key] = $val;\r\n\t}\r\n}\r\nprint_r($tmpArr);<\/pre>\n<\/p>\n
\u533f\u540d\u95a2\u6570\u3067\u8a18\u8ff0\u3059\u308b<\/h2>\n
\u4eca\u306e\u4f8b\u3060\u3068\u3001foreach\u306e\u307b\u3046\u304c\u77ed\u304f\u3066\u5206\u304b\u308a\u3084\u3059\u3044\u6c17\u304c\u3057\u307e\u3059\u3002<\/p>\n
\u305d\u3053\u3067\u3001\u4e00\u5ea6\u3057\u304b\u4f7f\u308f\u306a\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u95a2\u6570\u3092\u5ba3\u8a00\u305b\u305a\u306b\u3001\u533f\u540d\u95a2\u6570\u3068\u3057\u3066\u305d\u306e\u5834\u3067\u5ba3\u8a00\u3057\u305f\u66f8\u304d\u65b9\u306b\u3057\u307e\u3059\u3002<\/p>\n
$tmpArr = array_filter($simpleArr, function($var){\r\n\tif($var > 0) {\r\n\t\treturn true;\r\n\t}\r\n});\r\nprint_r($tmpArr);<\/pre>\n<\/p>\n
\u30ad\u30fc\u3082\u6e21\u3059[PHP5.6\u4ee5\u4e0a]<\/h2>\n
\u6761\u4ef6\u5f0f\u306e\u5f15\u6570\u306b\u5024\u3057\u304b\u6e21\u3057\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u4f8b\u3048\u3070\u3001\u9023\u60f3\u914d\u5217\u306e\u30ad\u30fc\u3067\u5224\u65ad\u3057\u305f\u3044\u5834\u5408\u306a\u3069\u306f\u3001\u7b2c3\u306e\u5f15\u6570\u306b\u3001ARRAY_FILTER_USE_BOTH \u3092\u8ffd\u8a18\u3057\u307e\u3059\u3002
\n(PHP5.6\u4ee5\u964d\u3067\u306a\u3044\u3068\u4f7f\u3048\u307e\u305b\u3093)<\/p>\n$simpleArr = ['banana'=>1, 'apple'=> 2, 'strawberry'=>0, 'pineapple'=>4];\r\n\r\n$tmpArr = array_filter($simpleArr, function($val, $key){\r\n\tif($key == 'banana' || $key == 'strawberry') {\r\n\t\tif($val > 0){\r\n\t\t\treturn true;\r\n\t\t}\r\n\t}\r\n}, ARRAY_FILTER_USE_BOTH);\r\nprint_r($tmpArr);<\/pre>\n\u4e0a\u306e\u4f8b\u306f\u3001banana\u304bstrawberry\u306e\u3046\u3061\u30010\u3088\u308a\u5927\u304d\u3044\u6570\u5b57\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
Array\r\n(\r\n [banana] => 1\r\n)\r\n<\/pre>\n<\/p>\n
\u3042\u3068\u3001\u3042\u307e\u308a\u4f7f\u308f\u306a\u3044\u6c17\u304c\u3057\u307e\u3059\u304c\u3001ARRAY_FILTER_USE_KEY \u306b\u3059\u308b\u3068\u3001\u5f15\u6570\u306b\u30ad\u30fc\u3060\u3051\u3092\u6e21\u3057\u307e\u3059\u3002<\/p>\n
$simpleArr = ['banana'=>1, 'apple'=> 2, 'strawberry'=>0, 'pineapple'=>4];\r\n\r\n$tmpArr = array_filter($simpleArr, function($key){\r\n\tif($key == 'banana' || $key == 'strawberry') {\r\n\t\treturn true;\r\n\t}\r\n}, ARRAY_FILTER_USE_KEY);\r\nprint_r($tmpArr);<\/pre>\n<\/p>\n
array_values\u3067\u30ad\u30fc\u3092\u4e26\u3073\u66ff\u3048\u308b\u3002<\/h2>\n
\u304a\u6c17\u3065\u304d\u306e\u901a\u308a\u3001array_fileter\u306f\u30ad\u30fc\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002<\/p>\n
\u9023\u60f3\u914d\u5217\u306a\u3069\u306f\u3001\u30ad\u30fc\u3092\u4fdd\u6301\u3059\u308b\u306e\u306b\u90fd\u5408\u304c\u3044\u3044\u306e\u3067\u3059\u304c\u3001\u914d\u5217\u3060\u3068\u3001\u30ad\u30fc\u3092\u518d\u5ea6\u632f\u308a\u76f4\u3057\u305f\u3044\u5834\u5408\u304c\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n
\u305d\u306e\u5834\u5408\u306f\u3001array_balues\u3067\u914d\u5217\u3092\u4f5c\u308a\u76f4\u3057\u307e\u3059\u3002<\/p>\n
$simpleArr = [1, 2, -1, 3, 0 -4];\r\n\r\n$tmpArr = array_filter($simpleArr, function($var){\r\n\tif($var > 0) {\r\n\t\treturn true;\r\n\t}\r\n});\r\n$tmpArr = array_values($tmpArr);\r\nprint_r($tmpArr);<\/pre>\n\u5148\u307b\u3069\u306f\u30010, 1, 3 \u3068\u306a\u3063\u3066\u3044\u305f\u306e\u304c\u3001\u30ad\u30fc\u304c\u8a70\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n
Array\r\n(\r\n [0] => 1\r\n [1] => 2\r\n [2] => 3\r\n)<\/pre>\n<\/p>\n
\u307e\u3068\u3081<\/h2>\n
\u6b63\u76f4\u3001\u666e\u901a\u306eforeach\u3067\u5341\u5206\u3060\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n
array_filter\u3088\u308a\u3001foreach\u306e\u307b\u3046\u304c\u3001\u95a2\u6570\u547c\u3073\u51fa\u3057\u304c\u7121\u3044\u306e\u3067\u901f\u5ea6\u3082\u901f\u304f\u3001PHP\u306e\u719f\u7df4\u8005\u3067\u306a\u304f\u3066\u3082\u8aad\u3081\u308b\u306e\u3067\u3002<\/p>\n
\u3058\u3083\u3041\u3001\u3044\u3064\u4f7f\u3046\u304b\u3002<\/p>\n
foreach\u3088\u308a\u8aad\u307f\u3084\u3059\u3044\u3068\u611f\u3058\u305f\u5834\u6240\u3067\u4f7f\u3046\u306e\u304b\u306a\u30fb\u30fb\u30fb\u3002<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u899a\u3048\u306a\u304f\u3066\u3082\u3044\u3044\u304c\u3001\u899a\u3048\u308b\u3068\u5c11\u3057\u30af\u30fc\u30eb\u306b\u66f8\u3051\u308b array_filter \u3002 PHP\u306e\u4ed5\u69d8\u3060\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u3044\u3066\u3042\u308a\u307e\u3059\u3002 array array_filter ( array $array [, callable $c… more