{"id":4594,"date":"2023-09-24T11:23:35","date_gmt":"2023-09-24T02:23:35","guid":{"rendered":"https:\/\/memotarou.bulog.jp\/?p=4594"},"modified":"2025-03-19T12:56:04","modified_gmt":"2025-03-19T03:56:04","slug":"php-comparison-operator","status":"publish","type":"post","link":"https:\/\/memotarou.bulog.jp\/?p=4594","title":{"rendered":"\u3010PHP\u3011\u6bd4\u8f03\u6f14\u7b97\u5b50"},"content":{"rendered":"

PHP\u306e\u6bd4\u8f03\u6f14\u7b97\u5b50<\/h2>\n
\"\"<\/div>\n

\u6bd4\u8f03\u6f14\u7b97\u5b50\u3068\u306f\uff1f<\/h3>\n

\u6bd4\u8f03\u6f14\u7b97\u5b50\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u5024\u3092\u6bd4\u8f03\u3059\u308b\u305f\u3081\u306e\u6f14\u7b97\u5b50\u3067\u3059\u3002
\n <\/p>\n

\u6bd4\u8f03\u6f14\u7b97\u5b50\u306e\u7a2e\u985e<\/h3>\n\n\n\n\n\n\n\n\n\n\n
\u8a18\u53f7<\/th>\n\u540d\u79f0<\/th>\n\u8aac\u660e<\/th>\n<\/tr>\n
==<\/th>\n\u7b49\u4fa1\u6f14\u7b97\u5b50<\/td>\n\u5de6\u8fba\u3068\u53f3\u8fba\u306e\u5024\u304c\u7b49\u3057\u3044\u304b\u3069\u3046\u304b\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002\u5024\u304c\u540c\u3058\u306a\u3089 true \u3092\u3001\u9055\u3046\u5834\u5408\u306f false \u3092\u8fd4\u3057\u307e\u3059\u3002\u578b\u306e\u6bd4\u8f03\u306f\u884c\u308f\u305a\u3001\u5024\u306e\u307f\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
===<\/th>\n\u53b3\u5bc6\u7b49\u4fa1\u6f14\u7b97\u5b50<\/td>\n\u5de6\u8fba\u3068\u53f3\u8fba\u306e\u5024\u3068\u578b\u304c\u5b8c\u5168\u306b\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002\u5024\u3068\u578b\u304c\u540c\u3058\u5834\u5408\u306b\u306e\u307f true \u3092\u8fd4\u3057\u3001\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306f false \u3092\u8fd4\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
!=<\/th>\n\u4e0d\u7b49\u4fa1\u6f14\u7b97\u5b50<\/td>\n\u5de6\u8fba\u3068\u53f3\u8fba\u306e\u5024\u304c\u7b49\u3057\u304f\u306a\u3044\u5834\u5408\u306b true \u3092\u8fd4\u3057\u3001\u7b49\u3057\u3044\u5834\u5408\u306b false \u3092\u8fd4\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
!==<\/th>\n\u53b3\u5bc6\u4e0d\u7b49\u4fa1\u6f14\u7b97\u5b50<\/td>\n\u5de6\u8fba\u3068\u53f3\u8fba\u306e\u5024\u3068\u578b\u304c\u5b8c\u5168\u306b\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306b true \u3092\u8fd4\u3057\u3001\u4e00\u81f4\u3059\u308b\u5834\u5408\u306b false \u3092\u8fd4\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
<<\/th>\n\u5c0f\u306a\u308a\u6f14\u7b97\u5b50<\/td>\n\u5de6\u8fba\u304c\u53f3\u8fba\u3088\u308a\u5c0f\u3055\u3044\u5834\u5408\u306b true \u3092\u8fd4\u3057\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306b false \u3092\u8fd4\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
><\/th>\n\u5927\u306a\u308a\u6f14\u7b97\u5b50<\/td>\n\u5de6\u8fba\u304c\u53f3\u8fba\u3088\u308a\u5927\u304d\u3044\u5834\u5408\u306b true \u3092\u8fd4\u3057\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306b false \u3092\u8fd4\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
<=<\/th>\n\u5c0f\u306a\u308a\u30a4\u30b3\u30fc\u30eb\u6f14\u7b97\u5b50<\/td>\n\u5de6\u8fba\u304c\u53f3\u8fba\u4ee5\u4e0b\u306e\u5834\u5408\u306b true \u3092\u8fd4\u3057\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306b false \u3092\u8fd4\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
>=<\/th>\n\u5927\u306a\u308a\u30a4\u30b3\u30fc\u30eb\u6f14\u7b97\u5b50<\/td>\n\u5de6\u8fba\u304c\u53f3\u8fba\u4ee5\u4e0a\u306e\u5834\u5408\u306b true \u3092\u8fd4\u3057\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306b false \u3092\u8fd4\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/table>\n

 <\/p>\n

\u7b49\u4fa1\u6bd4\u8f03\u3068\u53b3\u5bc6\u7b49\u4fa1\u6bd4\u8f03<\/h3>\n

\u7b49\u4fa1\u6f14\u7b97\u5b50<\/h4>\n

\u7b49\u4fa1\u6bd4\u8f03\u306f\u3001\u578b\u3092\u7121\u8996\u3057\u5024\u306e\u307f\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002<\/p>\n

$a = 5;\r\n$b = '5';\r\n\r\nif ($a == $b) {\r\n    echo '$a \u3068 $b \u306f\u7b49\u3057\u3044\u3067\u3059\u3002';\r\n} else {\r\n    echo '$a \u3068 $b \u306f\u7b49\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002'; \/\/ \u3053\u3061\u3089\u304c\u51fa\u529b\u3055\u308c\u308b\u3002\r\n}\r\n<\/code><\/pre>\n
 <\/p>\n
\u53b3\u5bc6\u7b49\u4fa1\u6f14\u7b97\u5b50<\/h4>\n
\u53b3\u5bc6\u7b49\u4fa1\u6bd4\u8f03\u306f\u3001\u578b\u3068\u5024\u306e\u4e21\u65b9\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002<\/p>\n
$a = 5;\r\n$b = '5';\r\n\r\nif ($a === $b) {\r\n    echo '$a \u3068 $b \u306f\u53b3\u5bc6\u306b\u7b49\u3057\u3044\u3067\u3059\u3002';\r\n} else {\r\n    echo '$a \u3068 $b \u306f\u53b3\u5bc6\u306b\u7b49\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002'; \/\/ \u3053\u3061\u3089\u304c\u51fa\u529b\u3055\u308c\u308b\u3002\r\n}\r\n<\/code><\/pre>\n
 <\/p>\n
\u4e0d\u7b49\u4fa1\u6bd4\u8f03\u3068\u53b3\u5bc6\u4e0d\u7b49\u4fa1\u6bd4\u8f03<\/h3>\n
\u4e0d\u7b49\u4fa1\u6f14\u7b97\u5b50<\/h4>\n
$value1 = \"5\"; \/\/ \u6587\u5b57\u5217\u578b\r\n$value2 = 5;   \/\/ \u6574\u6570\u578b\r\n\r\nif ($value1 != $value2) {\r\n    echo '$value1 \u3068 $value2 \u306f\u5024\u304c\u7570\u306a\u308b\u306e\u3067\u6761\u4ef6\u306f true \u3067\u3059\u3002';\r\n} else {\r\n    echo '$value1 \u3068 $value2 \u306f\u5024\u304c\u4e00\u81f4\u3059\u308b\u306e\u3067\u6761\u4ef6\u306f false \u3067\u3059\u3002';\r\n}\r\n<\/code><\/pre>\n
 <\/p>\n
\u53b3\u5bc6\u4e0d\u7b49\u4fa1\u6f14\u7b97\u5b50<\/h4>\n
$value1 = \"5\"; \/\/ \u6587\u5b57\u5217\u578b\r\n$value2 = 5;   \/\/ \u6574\u6570\u578b\r\n\r\nif ($value1 !== $value2) {\r\n    echo '$value1 \u3068 $value2 \u306f\u5024\u3068\u578b\u304c\u4e00\u81f4\u3057\u306a\u3044\u306e\u3067\u6761\u4ef6\u306f true \u3067\u3059\u3002';\r\n} else {\r\n    echo '$value1 \u3068 $value2 \u306f\u5024\u3068\u578b\u304c\u4e00\u81f4\u3059\u308b\u306e\u3067\u6761\u4ef6\u306f false \u3067\u3059\u3002';\r\n}\r\n<\/code><\/pre>\n
 <\/p>\n
\u307e\u3068\u3081<\/h2>\n
\u500b\u4eba\u7684\u306b\u3067\u3059\u304c\u3001PHP\u3092\u59cb\u3081\u3066\u6bd4\u8f03\u6f14\u7b97\u5b50\u306e\u300c==\u300d\u3068\u300c===\u300d\u306e\u9055\u3044\u304c\u6700\u521d\u308f\u304b\u3089\u306a\u3044\u3068\u3044\u3046\u304b\u3001\u300c===\u300d\u3063\u3066\u4f55\uff1f\u3068\u3044\u3046\u611f\u3058\u3060\u3063\u305f\u306e\u3067\u3001\u5099\u5fd8\u9332\u7684\u306b\u66f8\u304d\u7559\u3081\u3066\u304a\u304d\u307e\u3057\u305f\u3002<\/p>\n
\u307b\u307c\u307b\u307cMicrosoft\u306eVB\u7cfb\u3084C#\u306a\u3069\u306e\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u3060\u3063\u305f\u306e\u3067\u3001\u578b\u306e\u66d6\u6627\u306a\u6bd4\u8f03\u3068\u3044\u3046\u3082\u306e\u306b\u6238\u60d1\u3044\u307e\u3057\u305f\u3002<\/p>\n
\u305d\u3082\u305d\u3082\u5909\u6570\u306e\u5ba3\u8a00\u3084\u578b\u306e\u5ba3\u8a00\u3082\u3057\u306a\u3044\u8a00\u8a9e\u3063\u3066\uff5e\u3063\u3066\u611f\u3058\u3067\u3001\u6238\u60d1\u3044\u307e\u3057\u305f\u3002<\/p>\n
\u578b\u3092\u610f\u8b58\u3057\u306a\u3044\u6bd4\u8f03\u3068\u3044\u3046\u3082\u306e\u3078\u306e\u7406\u89e3\u3084\u4f7f\u3044\u5206\u3051\u304c\u3001\u672a\u3060\u306b\u5fae\u5999\u306a\u611f\u60c5\u3067\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3057\u304b\u3057\u4eca\u306fWeb\u7cfb\u306e\u8a00\u8a9e\u958b\u767a\u304c\u591a\u3044\u306e\u3067\u3001\u4ed5\u65b9\u306a\u3044\u3067\u3059\u306d\u3002\u3002
\n <\/p>\n
\n\t
\n\t\t
\n\t\t\t\t\t\t\t<\/a>\t\t\t\t\t<\/div>\n\t\t
\n\t\t\t
\n\t\t\t\t\t\t\t\t\t\u30d6\u30e9\u30c3\u30af\u4f01\u696d\u306e\u793e\u54e1\u304c\u732b\u306b\u306a\u3063\u3066\u4eba\u751f\u304c\u5909\u308f\u3063\u305f\u8a71\u3000\u30e2\u30d5\u7530\u304f\u3093\u306e\u5834\u5408 (\u30b3\u30df\u30c3\u30af\u30a8\u30c3\u30bb\u30a4)<\/a>\t\t\t\t\t\t\t<\/div>\n\t\t\t
\n\t\t\t\t\t\t\t
created by Rinker<\/a><\/div>\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t