{"id":28197,"date":"2017-07-30T19:12:18","date_gmt":"2017-07-30T10:12:18","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=28197"},"modified":"2025-04-23T10:25:11","modified_gmt":"2025-04-23T01:25:11","slug":"%e3%80%90php%e5%85%a5%e9%96%80%e3%80%91mysql%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%82%92%e3%82%8f%e3%81%8b%e3%82%8a%e3%82%84%e3%81%99%e3%81%8f%e8%a7%a3%e8%aa%ac%ef%bc%81%e6%8e%a5%e7%b6%9a%e3%80%9c","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/28197","title":{"rendered":"\u521d\u5fc3\u8005\u3067\u3082\u5b89\u5fc3\uff01PHP7\u00d7MySQL\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3057\u3088\u3046\u3010\u5165\u9580\u7de8\u3011"},"content":{"rendered":"\n<p><strong>\u300cMySQL\u3063\u3066\u3088\u304f\u898b\u304b\u3051\u308b\u3051\u3069\u306a\u3093\u3060\u308d\u3046\u30fb\u30fb\u30fb\u300d<\/strong><\/p>\n\n\n\n<p><strong>\u300cPHP\u304b\u3089MySQL\u306e\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u306b\u306f\u3069\u3046\u3057\u305f\u3089\u3044\u3044\u3093\u3060\u308d\u3046\u30fb\u30fb\u30fb\u300d<\/strong><\/p>\n\n\n\n<p><strong>\u300cPHP\u3068MySQL\u306f\u7c21\u5358\u306b\u9023\u643a\u3067\u304d\u308b\u306e\u304b\u306a\uff1f\u96e3\u3057\u305d\u3046\u30fb\u30fb\u30fb\u300d<\/strong><\/p>\n\n\n\n<p>\u3068\u4e0d\u5b89\u306b\u601d\u3046\u3053\u3068\u304c\u3042\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3093\u306a\u3042\u306a\u305f\u306b\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<\/p>\n\n\n\n<p><span style=\"color: #ff0000;\"><strong>\u30fbMySQL\u3068\u306f<br>\u30fbMySQL\u306e\u8d77\u52d5\uff5e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5<br>\u30fbMySQL\u306b\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5<br><\/strong><\/span><br>\u306a\u3069\u306e\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089\u3001<\/p>\n\n\n\n<p><span style=\"color: #ff0000;\"><strong>\u30fbSQL\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3059\u308b\u65b9\u6cd5<br>\u30fbPDO\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5<\/strong><\/span><\/p>\n\n\n\n<p>\u306a\u3069\u306e\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001\u305d\u3093\u306aMySQL\u306b\u3064\u3044\u3066<span style=\"color: #ff0000; background-color: #ffff99;\"><strong>\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210\u65b9\u6cd5\u304b\u3089\u3001PHP\u3067\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u63a5\u7d9a\uff5eSQL\u30af\u30a8\u30ea\u306e\u5b9f\u884c\u307e\u3067<\/strong><\/span>\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\uff01<\/p>\n\n\n\n<p>\u306a\u304a\u3001\u6b21\u306e\u8a18\u4e8b\u3067\u306f\u305d\u3082\u305d\u3082PHP\u3068\u306f\u3069\u3093\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306a\u306e\u304b\u3001\u305d\u306e\u7279\u5fb4\u3092\u3067\u304d\u308b\u3053\u3068\u3084\u5c06\u6765\u6027\u3082\u4ea4\u3048\u8a73\u3057\u304f\u7d39\u4ecb\u3057\u3066\u3044\u308b\u306e\u3067\u826f\u3051\u308c\u3070\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u2192&nbsp;<a href=\"https:\/\/www.sejuku.net\/blog\/4097\">PHP\u3068\u306f\u4f55\u304b\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff01\u3067\u304d\u308b\u3053\u3068\u3084\u5c06\u6765\u6027\u3001\u5b66\u7fd2\u65b9\u6cd5\u3082\u7d39\u4ecb<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">MySQL\u3068\u306f<\/h2>\n\n\n\n<p>MySQL\u3068\u306f\u3001\u6700\u3082\u666e\u53ca\u3057\u3066\u3044\u308b<span style=\"color: #0000ff;\"><strong>\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306eSQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0<\/strong><\/span>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u3067\u7121\u511f\u3067\u5c0e\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u5927\u5bb9\u91cf\u306e\u30c7\u30fc\u30bf\u3067\u3082\u9ad8\u901f\u3067\u52d5\u4f5c\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306a\u305f\u3081\u3001<span style=\"color: #ff0000;\"><strong>\u5b9f\u7528\u6027\u306e\u9ad8\u3044\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e1\u3064<\/strong><\/span>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e16\u754c\u7684\u306b\u3082\u6709\u540d\u3067\u3001\u591a\u304f\u306e\u4f01\u696d\u3067\u3082MySQL\u304c\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001PHP\u3067\u3082\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f<span style=\"color: #0000ff;\"><strong>MySQL\u3092\u4f7f\u7528\u3059\u308b\u983b\u5ea6\u304c\u9ad8\u3044<\/strong><\/span>\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001MySQL\u306fWindows\u3001Mac\u3001Linux\u306a\u3069<span style=\"color: #0000ff;\"><strong>\u3055\u307e\u3056\u307e\u306a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u52d5\u4f5c\u304c\u53ef\u80fd<\/strong><\/span>\u3067\u3001\u81ea\u7531\u306b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>MySQL\u306e\u306b\u3064\u3044\u3066\u306e\u8a73\u7d30\u3084\u3001MySQL\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u65b9\u6cd5\u306a\u3069\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\uff01<\/p>\n\n\n            <a href=\"https:\/\/www.sejuku.net\/blog\/9021\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2016\/04\/howto-01-2024-03-17T000003.825-150x85.png\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010\u8d85\u521d\u5fc3\u8005\u5411\u3051\u3011MySQL\u3068\u306f\uff1f\u3069\u3053\u3088\u308a\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2025\u5e7412\u670826\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n\n\n            <a href=\"https:\/\/www.sejuku.net\/blog\/45937\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2024\/06\/howto-01-2024-08-16T230420.850-150x85.png\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Windows\/Mac\u3011MySQL\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\uff5e\u74b0\u5883\u69cb\u7bc9\uff5e\u63a5\u7d9a\u3010\u7c21\u5358\u3011<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2025\u5e7412\u670826\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n\n\n\n<p>\u307e\u305f\u3001MySQL\u306e\u30b3\u30de\u30f3\u30c9\u4e00\u89a7\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u3067\u7d39\u4ecb\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br><a href=\"https:\/\/itsakura.com\/mysql-command\" target=\"_blank\" rel=\"noopener\">https:\/\/itsakura.com\/mysql-command<\/a><\/p>\n\n\n\n<p>PHP\u3067MySQL\u306e\u5c0e\u5165\u3084\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u3067\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<br><a href=\"http:\/\/php.net\/manual\/ja\/set.mysqlinfo.php\" target=\"_blank\" rel=\"noopener\">http:\/\/php.net\/manual\/ja\/set.mysqlinfo.php<br><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">MySQL\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u3088\u3046<\/h2>\n\n\n\n<p>\u307e\u305a\u306f\u4e0b\u6e96\u5099\u3068\u3057\u3066\u3001\u5b9f\u969b\u306bMySQL\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u306fMac\u3067PHP\u306e\u958b\u767a\u74b0\u5883\u3067\u3042\u308b\u300cMAMP\u300d\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3001MySQL\u3092\u52d5\u304b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306fMac\u306e\u30bf\u30fc\u30df\u30ca\u30eb\u3067MySQL\u3092\u8d77\u52d5\u3059\u308b\u624b\u9806\u306e\u4e00\u4f8b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">MySQL\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u79fb\u52d5\n$ cd \/Applications\/MAMP\/Library\/bin\/\n\nMySQL\u3092\u8d77\u52d5\u3059\u308b\n$ .\/mysql -u root -p\n\n\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b\n$ xxxx\n\n\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u9078\u629e\nmysql&gt;use xxxx\n<\/pre>\n\n\n\n<p>MySQL\u3092\u8d77\u52d5\u3057\u3066\u4f7f\u7528\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u9078\u629e\u3057\u305f\u3089\u3001\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306bCREATE\u6587\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">CREATE TABLE \u30c6\u30fc\u30d6\u30eb\u540d(\n  \u30ab\u30e9\u30e0\u540d1 \u578b\u60c5\u5831,\n  \u30ab\u30e9\u30e0\u540d2 \u578b\u60c5\u5831,\n  \u30fb\u30fb\u30fb\n)\n<\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u306eSQL\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">CREATE TABLE fruits_table (\n    id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,\n    fruits VARCHAR(32),\n    value INT\n);\n<\/pre>\n\n\n\n<p>\u7d9a\u3051\u3066\u3001INSERT\u6587\u3092\u4f7f\u7528\u3057\u3066\u30c6\u30fc\u30d6\u30eb\u306e\u4e2d\u306b\u30c7\u30fc\u30bf\u3092\u633f\u5165\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">INSERT INTO fruits_table (fruits, value) VALUES (\"apple\", 100);\nINSERT INTO fruits_table (fruits, value) VALUES (\"orange\", 80);\nINSERT INTO fruits_table (fruits, value) VALUES (\"melon\", 500);\nINSERT INTO fruits_table (fruits, value) VALUES (\"pineapple\", 700);\n<\/pre>\n\n\n\n<p>\u30c7\u30fc\u30bf\u3092\u633f\u5165\u3057\u305f\u3089\u3001\u4ee5\u4e0b\u306eSELECT\u6587\u3092\u5b9f\u884c\u3057\u3066\u30c6\u30fc\u30d6\u30eb\u306e\u4e2d\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mysql&gt; SELECT * FROM fruits_table;\n<\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u308c\u305f\u3089\u6210\u529f\u3067\u3059\uff01<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">+----+-----------+-------+\n| id | fruits    | value |\n+----+-----------+-------+\n|  1 | apple     |   100 |\n|  2 | orange    |    80 |\n|  3 | melon     |   500 |\n|  4 | pineapple |   700 |\n+----+-----------+-------+\n4 rows in set (0.00 sec)\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">MySQL\u306b\u63a5\u7d9a\u3057\u3066\u307f\u3088\u3046<\/h2>\n\n\n\n<p>MySQL\u306b\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5\u3068\u3057\u3066\u306f<span style=\"color: #339966;\"><strong>mysql_connect<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u304c\u4e00\u822c\u7684\u3067\u3057\u305f\u304c\u3001mysql_connect\u95a2\u6570\u306f<span style=\"color: #ff0000;\"><strong>PHP5.5.0\u3088\u308a\u975e\u63a8\u5968\u3068\u306a\u308aPHP7.0\u3067\u306f\u524a\u9664<\/strong><\/span>\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u305f\u3081\u3001PHP7\u4ee5\u964d\u3067MySQL\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u306f\u3001<\/p>\n\n\n\n<p>\u624b\u7d9a\u304d\u578b\u306e<span style=\"color: #339966;\"><strong>mysqli_connect<\/strong><\/span>\u3067\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5\u3001<br>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u578b\u306e<span style=\"color: #339966;\"><strong>mysqli::__construct<\/strong><\/span>\u3067\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5\u3001<\/p>\n\n\n\n<p>\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">mysqli_connect\u306e\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>\u624b\u7d9a\u304d\u578b\u306e<span style=\"color: #339966;\"><strong>mysqli_connect<\/strong><\/span>\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u66f8\u304d\u65b9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mysqli_connect(string $\u30db\u30b9\u30c8\u540d, string $\u30e6\u30fc\u30b6\u540d, string $\u30d1\u30b9\u30ef\u30fc\u30c9, string $\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u540d [, string $\u30dd\u30fc\u30c8 [, string $\u30bd\u30b1\u30c3\u30c8]]);\n<\/pre>\n\n\n\n<p>\u5f15\u6570\uff1a<br>MySQL\u30b5\u30fc\u30d0\u30fc\u306e\u30db\u30b9\u30c8\u540d\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u3001\u63a5\u7d9a\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u540d\u306a\u3069\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u8fd4\u308a\u5024\uff1a<br>MySQL\u63a5\u7d9a\u6642\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>mysqli_connect\u3092\u4f7f\u7528\u3057\u3066MySQL\u306b\u63a5\u7d9a\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;?php\n\n\/\/ \u63a5\u7d9a\n$link = mysqli_connect('localhost', 'root', 'passwd', 'my_app');\n \nif (!$link) {\n    echo \"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u5931\u6557\" . PHP_EOL;\n    echo \"errno: \" . mysqli_connect_errno() . PHP_EOL;\n    echo \"error: \" . mysqli_connect_error() . PHP_EOL;\n    exit;\n}\n \necho '\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u6210\u529f';\n \n\/\/ \u5207\u65ad\nmysqli_close($link);\n\n?&gt;\n<\/pre>\n\n\n\n<p>\u63a5\u7d9a\u306b\u5931\u6557\u3059\u308b\u3068\u3001\u63a5\u7d9a\u6642\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30a8\u30e9\u30fc\u5185\u5bb9\u304c\u4ed8\u52a0\u3055\u308c\u308b\u305f\u3081\u3001<span style=\"color: #339966;\"><strong>\u300cmysqli_connect_errno\u300d\u300cmysqli_connect_error\u300d<\/strong><\/span>\u95a2\u6570\u306a\u3069\u3067<span style=\"color: #0000ff;\"><strong>\u30a8\u30e9\u30fc\u60c5\u5831\u3092\u78ba\u8a8d<\/strong><\/span>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u63a5\u7d9a\u6642\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u6700\u5f8c\u306b<span style=\"color: #339966;\"><strong>mysqli_close<\/strong><\/span>\u3092\u4f7f\u7528\u3057\u3066<span style=\"color: #0000ff;\"><strong>\u5207\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059<\/strong><\/span>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">mysqli::__construct\u306e\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>MySQL\u306b\u63a5\u7d9a\u3059\u308b\u3082\u3046\u4e00\u3064\u306e\u65b9\u6cd5\u3068\u3057\u3066\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u306e<span style=\"color: #339966;\"><strong>mysqli::__construct<\/strong><\/span>\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>MySQL\u306e\u63a5\u7d9a\u306f\u3001<span style=\"color: #0000ff;\"><strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u578b\u3067\u306e\u63a5\u7d9a\u65b9\u6cd5\u304c\u63a8\u5968<\/strong><\/span>\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>mysqli::__construct\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u66f8\u304d\u65b9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mysqli::__construct(string $\u30db\u30b9\u30c8\u540d, string $\u30e6\u30fc\u30b6\u540d, string $\u30d1\u30b9\u30ef\u30fc\u30c9, string $\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u540d [, string $\u30dd\u30fc\u30c8 [, string $\u30bd\u30b1\u30c3\u30c8]]);\n<\/pre>\n\n\n\n<p>\u5f15\u6570\u306e\u6307\u5b9a\u306f\u3001\u624b\u7d9a\u304d\u578b\u306emysqli_connect\u3068\u540c\u69d8\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>mysqli::__construct\u3092\u4f7f\u7528\u3057\u3066MySQL\u306b\u63a5\u7d9a\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;?php\n\n\/\/ \u63a5\u7d9a\n$mysqli = new mysqli('localhost', 'root', 'passwd', 'my_app');\n \n\/\/\u63a5\u7d9a\u72b6\u6cc1\u306e\u78ba\u8a8d\nif (mysqli_connect_errno()) {\n    echo \"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u5931\u6557\" . PHP_EOL;\n    echo \"errno: \" . mysqli_connect_errno() . PHP_EOL;\n    echo \"error: \" . mysqli_connect_error() . PHP_EOL;\n    exit();\n}\n \necho '\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u6210\u529f';\n \n\/\/ \u5207\u65ad\n$mysqli-&gt;close();\n\n?&gt;\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">SQL\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u3066\u307f\u3088\u3046(query)<\/h2>\n\n\n\n<p>MySQL\u306e\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3059\u308b\u306b\u306f\u3001<span style=\"color: #339966;\"><strong>query<\/strong><\/span>\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>MySQL\u3078\u306e\u63a5\u7d9a\u304b\u3089\u3001INSERT\u6587\u3067\u30c7\u30fc\u30bf\u3092\u633f\u5165\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;?php\n\n\/\/ \u63a5\u7d9a\n$mysqli = new mysqli('localhost', 'root', 'passwd', 'my_app');\n \n\/\/\u63a5\u7d9a\u72b6\u6cc1\u306e\u78ba\u8a8d\nif (mysqli_connect_errno()) {\n    echo \"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u5931\u6557\" . PHP_EOL;\n    echo \"errno: \" . mysqli_connect_errno() . PHP_EOL;\n    echo \"error: \" . mysqli_connect_error() . PHP_EOL;\n    exit();\n}\n \n\/\/ \u30c7\u30fc\u30bf\u3092\u633f\u5165\u3059\u308b\n$sql = \"INSERT INTO fruits_table (fruits, value) VALUES ('strawberry', 800)\";\n \n$result = $mysqli-&gt;query($sql);\n \nif (!$result) {\n    echo 'INSERT\u304c\u5931\u6557\u3057\u307e\u3057\u305f\u3002'.mysqli_error();\n}else{\n\techo 'INSERT\u304c\u6210\u529f\u3057\u307e\u3057\u305f';\n}\n \n\/\/ \u5207\u65ad\n$mysqli-&gt;close();\n\n?&gt;\n<\/pre>\n\n\n\n<p>\u300cSELECT * FROM fruits_table;\u300d\u3092\u5b9f\u884c\u3057\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30c6\u30fc\u30d6\u30eb\u306b\u30c7\u30fc\u30bf\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u308c\u3070\u6210\u529f\u3067\u3059\uff01<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mysql&gt; SELECT * FROM fruits_table;\n+----+------------+-------+\n| id | fruits     | value |\n+----+------------+-------+\n|  1 | apple      |   100 |\n|  2 | orange     |    80 |\n|  3 | melon      |   500 |\n|  4 | pineapple  |   700 |\n|  5 | strawberry |   800 |\n+----+------------+-------+\n5 rows in set (0.00 sec)\n<\/pre>\n\n\n\n<p>SQL\u30af\u30a8\u30ea\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b<span style=\"color: #339966;\"><strong>UPDATE<\/strong><\/span>\u6587\u306b\u5909\u66f4\u3059\u308b\u3068\u3001<span style=\"color: #0000ff;\"><strong>\u30c7\u30fc\u30bf\u306e\u66f4\u65b0<\/strong><\/span>\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$sql = \"UPDATE fruits_table SET value=1000 WHERE id=5\";\n<\/pre>\n\n\n\n<p>\u300cSELECT * FROM fruits_table;\u300d\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mysql&gt; SELECT * FROM fruits_table;\n+----+------------+-------+\n| id | fruits     | value |\n+----+------------+-------+\n|  1 | apple      |   100 |\n|  2 | orange     |    80 |\n|  3 | melon      |   500 |\n|  4 | pineapple  |   700 |\n|  5 | strawberry |  1000 |\n+----+------------+-------+\n5 rows in set (0.00 sec)\n<\/pre>\n\n\n\n<p>id\u304c5\u306e\u30c7\u30fc\u30bf\u306evalue\u306e\u5024\u304c\u66f4\u65b0\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p><span style=\"color: #339966;\"><strong>DELETE<\/strong><\/span>\u6587\u306b\u5909\u66f4\u3059\u308c\u3070\u3001<span style=\"color: #0000ff;\"><strong>\u30c7\u30fc\u30bf\u304c\u524a\u9664<\/strong><\/span>\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$sql = \"DELETE FROM fruits_table WHERE id=5\";\n<\/pre>\n\n\n\n<p>\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mysql&gt; SELECT * FROM fruits_table;\n+----+------------+-------+\n| id | fruits     | value |\n+----+------------+-------+\n|  1 | apple      |   100 |\n|  2 | orange     |    80 |\n|  3 | melon      |   500 |\n|  4 | pineapple  |   700 |\n|  5 | strawberry |  1000 |\n+----+------------+-------+\n5 rows in set (0.00 sec)\n<\/pre>\n\n\n\n<p>id\u304c5\u306e\u30c7\u30fc\u30bf\u304c\u524a\u9664\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PDO\u3092\u4f7f\u3063\u3066\u307f\u3088\u3046<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">PDO\u3068\u306f<\/h3>\n\n\n\n<p><span style=\"color: #339966;\"><strong>PDO<\/strong><\/span>\u3068\u306f\u3001PHP\u6a19\u6e96\u306e<span style=\"color: #0000ff;\"><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30af\u30e9\u30b9<\/strong><\/span>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u306b\u306f<span style=\"color: #339966;\"><strong>Oracle<\/strong><\/span>\u3084<span style=\"color: #339966;\"><strong>DB2<\/strong><\/span>\u306e\u3088\u3046\u306a\u88fd\u54c1\u304b\u3089\u3001<span style=\"color: #339966;\"><strong>MySQL<\/strong><\/span>\u3084<span style=\"color: #339966;\"><strong>PostgreSQL<\/strong><\/span>\u306e\u3088\u3046\u306b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u3067\u7121\u511f\u306e\u3082\u306e\u307e\u3067\u3001<span style=\"color: #0000ff;\"><strong>\u69d8\u3005\u306a\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059<\/strong><\/span>\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u307e\u3067\u89e3\u8aac\u3057\u3066\u304d\u305fmysqli_connect\u3084mysqli::__construct\u306f\u3001<span style=\"color: #0000ff;\"><strong>MySQL\u3060\u3051\u306b\u4f7f\u7528\u3067\u304d\u308b\u3082\u306e<\/strong><\/span>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u306b\u5bfe\u3057PDO\u306f\u3001PDO\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u6642\u306e\u5f15\u6570\u306b\u3088\u3063\u3066\u3001<span style=\"color: #ff0000;\"><strong>\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/strong><\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u63a5\u7d9a\u3057\u3066\u307f\u3088\u3046<\/h3>\n\n\n\n<p>PDO\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u66f8\u304d\u65b9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">PDO::__construct(string $\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u540d [, string $\u30e6\u30fc\u30b6\u540d [, string $\u30d1\u30b9\u30ef\u30fc\u30c9 [, array $\u30aa\u30d7\u30b7\u30e7\u30f3 ]]])\n<\/pre>\n\n\n\n<p>\u5f15\u6570\uff1a<br>\u7b2c\u4e00\u5f15\u6570\u306b\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u540d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002MySQL\u3067\u3042\u308c\u3070<span style=\"color: #0000ff;\"><strong>&#8216;mysql:host=\u30db\u30b9\u30c8\u540d;dbname=\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u540d&#8217;<\/strong><\/span>\u306e\u3088\u3046\u306a\u5f62\u5f0f\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e8c\u5f15\u6570\u306b\u30e6\u30fc\u30b6\u540d\u3001\u7b2c\u4e09\u5f15\u6570\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u8fd4\u308a\u5024\uff1a<br>MySQL\u63a5\u7d9a\u6642\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>PDO::__construct\u3092\u4f7f\u7528\u3057\u3066MySQL\u306b\u63a5\u7d9a\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;?php\n\ntry{\n\t\/\/ \u63a5\u7d9a\n\t$db = new PDO('mysql:host=localhost;dbname=my_app', 'root', 'passwd');\n\techo '\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u6210\u529f';\n\t\/\/ \u5207\u65ad\n\t$db = null;\n} catch(PDOException $e){\n    echo \"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u5931\u6557\" . PHP_EOL;\n\techo $e-&gt;getMessage();\n\texit;\n}\n\n?&gt;\n<\/pre>\n\n\n\n<p>PDO::__construct\u306f\u3001\u63a5\u7d9a\u306b\u5931\u6557\u3059\u308b\u3068<span style=\"color: #339966;\"><strong>PDOException<\/strong><\/span>\u3092\u6295\u3052\u308b\u306e\u3067<span style=\"color: #339966;\"><strong>try-catch<\/strong><\/span>\u3067\u5bfe\u51e6\u3092\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5207\u65ad\u306f\u63a5\u7d9a\u6642\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b<span style=\"color: #0000ff;\"><strong>null\u3092\u4ee3\u5165<\/strong><\/span>\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<p>try-catch\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\uff01<br>            <a href=\"https:\/\/www.sejuku.net\/blog\/24907\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/06\/Exception-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010PHP\u5165\u9580\u3011Exception\u30af\u30e9\u30b9\u5fb9\u5e95\u89e3\u8aac!\u4f8b\u5916\u3092throw\u3057\u3066try~catch\u3059\u308b<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SQL\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u3066\u307f\u3088\u3046<\/h3>\n\n\n\n<p>SQL\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3059\u308b\u306b\u306f\u3001<span style=\"color: #339966;\"><strong>exec<\/strong><\/span>\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>INSERT\u6587\u3092\u5b9f\u884c\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;?php\n\ntry{\n\t\/\/ \u63a5\u7d9a\n\t$db = new PDO('mysql:host=localhost;dbname=my_app', 'root', 'passwd');\n\n\t\/\/ \u30c7\u30fc\u30bf\u3092\u633f\u5165\u3059\u308b\n\t$sql = \"INSERT INTO fruits_table (fruits, value) VALUES ('strawberry', 800)\";\n\t$result = $db-&gt;exec($sql);\n\n\tif (!$result) {\n\t    echo 'INSERT\u304c\u5931\u6557\u3057\u307e\u3057\u305f\u3002'.mysqli_error();\n\t}else{\n\t\techo 'INSERT\u304c\u6210\u529f\u3057\u307e\u3057\u305f';\n\t}\n\n\t\/\/ \u30af\u30ed\u30fc\u30ba\n\t$db = null;\n} catch(PDOException $e){\n    echo \"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u5931\u6557\" . PHP_EOL;\n\techo $e-&gt;getMessage();\n\texit;\n}\n\n?&gt;\n<\/pre>\n\n\n\n<p>\u78ba\u8a8d\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u304c\u633f\u5165\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mysql&gt; SELECT * FROM fruits_table;\n+----+------------+-------+\n| id | fruits     | value |\n+----+------------+-------+\n|  1 | apple      |   100 |\n|  2 | orange     |    80 |\n|  3 | melon      |   500 |\n|  4 | pineapple  |   700 |\n|  6 | strawberry |   800 |\n+----+------------+-------+\n5 rows in set (0.00 sec)\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001PHP\u3067MySQL\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u3001<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>MySQL\u3068\u306f<\/li>\n\n\n\n<li>MySQL\u306e\u8d77\u52d5\u304b\u3089\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5<\/li>\n\n\n\n<li>MySQL\u306b\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5<\/li>\n\n\n\n<li>SQL\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u3066\u30c7\u30fc\u30bf\u3092\u633f\u5165\u3001\u66f4\u65b0\u3001\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/li>\n\n\n\n<li>PDO\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5<\/li>\n<\/ul>\n\n\n\n<p>\u306a\u3069\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p><span style=\"color: #ff0000;\"><strong>MySQL\u306f\u3055\u307e\u3056\u307e\u306a\u30b7\u30b9\u30c6\u30e0\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u4ed5\u7d44\u307f\u3092\u3088\u304f\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\uff01<\/strong><\/span><\/p>\n\n\n\n<p>\u3082\u3057MySQL\u306e\u4f7f\u3044\u65b9\u3092\u5fd8\u308c\u3066\u3057\u307e\u3063\u305f\u3089\u3001\u3053\u306e\u8a18\u4e8b\u3092\u601d\u3044\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u306d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u300cMySQL\u3063\u3066\u3088\u304f\u898b\u304b\u3051\u308b\u3051\u3069\u306a\u3093\u3060\u308d\u3046\u30fb\u30fb\u30fb\u300d \u300cPHP\u304b\u3089MySQL\u306e\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u306b\u306f\u3069\u3046\u3057\u305f\u3089\u3044\u3044\u3093\u3060\u308d\u3046\u30fb\u30fb\u30fb\u300d \u300cPHP\u3068MySQL\u306f\u7c21\u5358\u306b\u9023\u643a\u3067\u304d\u308b\u306e\u304b\u306a\uff1f\u96e3\u3057\u305d\u3046\u30fb\u30fb\u30fb\u300d \u3068\u4e0d\u5b89\u306b\u601d\u3046\u3053\u3068\u304c\u3042\u308b\u304b [&hellip;]<\/p>\n","protected":false},"author":11989,"featured_media":64982,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"swell_btn_cv_data":"","footnotes":""},"categories":[2348],"tags":[38],"class_list":["post-28197","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php-study","tag-php"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u521d\u5fc3\u8005\u3067\u3082\u5b89\u5fc3\uff01PHP7\u00d7MySQL\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3057\u3088\u3046\u3010\u5165\u9580\u7de8\u3011 | 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