{"id":3035,"date":"2020-04-30T09:46:59","date_gmt":"2020-04-30T00:46:59","guid":{"rendered":"https:\/\/naoya-ono.com\/blog\/?p=3035"},"modified":"2020-04-30T09:49:13","modified_gmt":"2020-04-30T00:49:13","slug":"php-db-connect","status":"publish","type":"post","link":"https:\/\/naoya-ono.com\/blog\/php-db-connect\/","title":{"rendered":"PHP\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3059\u308b\u306e\u65b9\u6cd5\uff08\u66f8\u304d\u65b9\uff09"},"content":{"rendered":"

\u4e45\u3005\u306b\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u4f7f\u7528\u305b\u305a\u306b\u3001\u3061\u3087\u3063\u304f\u3089Web\u30a2\u30d7\u30ea\u3092\u958b\u767a\u3057\u3088\u3046\u3068\u3057\u305f\u3089\u3001DB\u306e\u63a5\u7d9a\u65b9\u6cd5\u306e\u66f8\u304d\u65b9\u5fd8\u308c\u3066\u56f0\u3063\u305f\u306e\u3067\u3001\u3053\u3053\u306b\u30e1\u30e2\u3068\u3057\u3066\u6b8b\u3057\u3066\u304a\u304f\u3002<\/p>\n

PDO\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5<\/h2>\n

PDO\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3002<\/p>\n

\n
$pdo = new PDO($dsn, $user, $password, $options);<\/code><\/pre>\n<\/div>\n
\n
$dsn<\/span><\/p>\n
\u3053\u3053\u306b\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u60c5\u5831\u3092\u66f8\u304f\u3002<\/span><\/p>\n
MySQL\u306b\u63a5\u7d9a\u3059\u308b\u5834\u5408\u306f\u3053\u3093\u306a\u611f\u3058\u3002<\/p>\n
\n
$dsn = 'mysql:dbname=test;host=localhost;charset=utf8';<\/code><\/pre>\n<\/div>\n
\u300cdbname\u300d\u3084\u300chost\u300d\u306e\u5024\u306f\u304b\u74b0\u5883\u306b\u5408\u308f\u305b\u3066\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\n
$user<\/span><\/p>\n
\u3053\u3053\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u30e6\u30fc\u30b6\u30fc\u540d\u3092\u66f8\u304f\u3002<\/p>\n
\n
$user = 'root';<\/code><\/pre>\n<\/div>\n
\n
$password<\/span><\/p>\n
\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u66f8\u304f<\/p>\n
\n
$password = 'root';<\/code><\/pre>\n<\/div>\n
\n
$options<\/span><\/p>\n
\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u6642\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u9023\u60f3\u914d\u5217\u3067\u66f8\u304f\u3002<\/span><\/p>\n
\u4f8b\u3092\u6319\u3052\u308b\u3068\u6b21\u306e\u3088\u3046\u306b\u66f8\u3051\u308b\u3002<\/p>\n
\n
 $options = array(\n    PDO::ATTR_ERRMODE => PDO::ERRMODE_SILENT,\n    PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,\n    PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true,\n\u3000\u3000);\n<\/code><\/pre>\n<\/div>\n
\n
\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u95a2\u3059\u308b\u30e1\u30e2<\/div>\n
\n
PDO::ATTR_ERRMODE<\/span>
\nSQL\u5b9f\u884c\u3067\u30a8\u30e9\u30fc\u304c\u8d77\u3053\u3063\u305f\u969b\u306b\u3069\u3046\u51e6\u7406\u3059\u308b\u304b\u3092\u6307\u5b9a\u3059\u308b\u3082\u306e\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u300cPDO::ERRMODE_SILENT\u300d<\/span><\/p>\n
 <\/p>\n
PDO::ATTR_DEFAULT_FETCH_MODE
\n<\/span>\u30d5\u30a7\u30c3\u30c1\u30e2\u30fc\u30c9\u306e\u8a2d\u5b9a\u3002\u300cPDO::FETCH_ASSOC\u300d\u304c\u3082\u3063\u3068\u3082\u30dd\u30d4\u30e5\u30e9\u30fc\u3089\u3057\u3044\u3002<\/p>\n
 <\/p>\n
PDO::MYSQL_ATTR_USE_BUFFERED_QUERY
\n<\/span>MySQL\u5c02\u7528\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3001\u7d50\u679c\u304ctrue\u306e\u6642\u306b\u30d0\u30c3\u30d5\u30a1\u30af\u30a8\u30ea\u3092\u4f7f\u7528\u3059\u308b\u3002\u30d0\u30c3\u30d5\u30a1\u30af\u30a8\u30ea\u3068\u306f\u300c\u5168\u3066\u306e\u60c5\u5831\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b5\u30fc\u30d0\u304b\u3089\u53d6\u5f97\u3057\u3066\u304d\u3066\u304a\u3044\u3066\uff0cPHP\u306b1\u4ef6\u305a\u3064\u53d6\u308a\u51fa\u3055\u305b\u308b\u300d\u3053\u3068\u3092\u6307\u3059\u3002<\/span><\/p>\n<\/div>\n<\/div>\n
\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u3064\u3044\u3066\u306f\u3001\u50d5\u3082\u8a73\u3057\u304f\u308f\u304b\u3063\u3066\u306a\u304f\u3066\u3001\u300c\u307e\u3041\u3001\u3053\u3093\u306a\u611f\u3058\u3067\u66f8\u3044\u3066\u304a\u3051\u3070\u3044\u3063\u304b\u300d\u7a0b\u5ea6\u3067\u66f8\u3044\u3066\u307e\u3059\u3002<\/p>\n
\u30b0\u30b0\u308b\u3068\u3044\u304f\u3089\u3067\u3082\u53c2\u8003\u8a18\u4e8b\u304c\u51fa\u3066\u304f\u308b\u306e\u3067\u3001\u6c17\u306b\u306a\u308b\u65b9\u306f\u30b0\u30b0\u3063\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
 <\/p>\n
\u3053\u308c\u3089\u3092DB\u63a5\u7d9a\u7528\u306e\u95a2\u6570\u3068\u3057\u3066\u307e\u3068\u3081\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3002<\/p>\n
\n
\n
\n
\/\/\/DB\u63a5\u7d9a\u95a2\u6570\nfunction dbConnect(){\n \/\/\u63a5\u7d9a\u306e\u305f\u3081\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\n  $dsn = 'mysql:dbname=DB\u540d;host=localhost;charset=utf8';\n  $user = 'root';\n  $password = 'root';\n  $options = array(\n    PDO::ATTR_ERRMODE => PDO::ERRMODE_SILENT,\n    PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,\n    PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true,\n\u3000\u3000);\n\u3000\u3000\/\/ DB\u3078\u63a5\u7d9a\n\u3000\u3000$pdo = new PDO($dsn, $user, $password, $options);\n\u3000\u3000return $dbh;\n}<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n
\u3042\u3068\u306f\u3001try\u2026catch\u306e\u4e2d\u3067 $pdo = dbConnect(); \u3068\u3084\u308c\u3070DB\u3078\u63a5\u7d9a\u3067\u304d\u308b\u3002<\/div>\n
\n
\n
\n
\n\t\t\t\t\t\t\t<\/a>\t\t\t\t\t<\/div>\n
\n
\n\t\t\t\t\t\t\t\t\t\u3088\u304f\u308f\u304b\u308bPHP\u306e\u6559\u79d1\u66f8 \u3010PHP7\u5bfe\u5fdc\u7248\u3011<\/a>\t\t\t\t\t\t\t<\/div>\n
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created by Rinker<\/a><\/div>\n
\n\t\t\t\t\t\t\t<\/div>\n<\/p><\/div>\n