\u307e\u305f\u3001\u5f8c\u7a0bphp\u306e\u30b3\u30fc\u30c9\u3067\u4f7f\u7528\u3059\u308b\u306e\u3067\u3059\u304c\u3001mysqli\u3068\u3044\u3046mysql\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u4f7f\u7528\u3059\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u4f7f\u7528\u3067\u304d\u308b\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3082\u78ba\u8a8d\u3057\u3066\u304a\u304d\u307e\u3059\u3002
\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u554f\u984c\u306a\u3055\u305d\u3046\u3067\u3059\u306e\u3067\u3001\u307e\u305f\u5f8c\u7a0b\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u307f\u3066\u3001\u30a8\u30e9\u30fc\u304c\u51fa\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002
\u3053\u308c\u3067php\u304c\u52d5\u4f5c\u3059\u308b\u3053\u3068\u3082\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u306e\u3067\u3001\u63b2\u793a\u677f\u6a5f\u80fd\u306e\u4f5c\u6210\u306b\u79fb\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n
\n\n\n\n \n BBS<\/title>\n<\/head>\n<body>\n <h1 id=\"bbs-2\">BBS<\/h1>\n <form action=\"bbs.php\" method=\"post\">\n \u540d\u524d:\u3000<input type=\"text\" name=\"name\" \/><br>\n \u5185\u5bb9:\u3000<input type=\"text\" name=\"comment\" size=\"60\" \/><br>\n <input type=\"submit\" name=\"submit\" value=\"\u9001\u4fe1\" \/>\n <\/form>\n<\/body>\n<?php\n\n?>\n<\/html>\n<\/pre><\/div>\n\n\n<p>\u307e\u305a\u306f\u3001MySQL\u3078\u306e\u63a5\u7d9a\u51e6\u7406\u3092\u66f8\u3044\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: php; title: ; notranslate\" title=\"\">\n<!DOCTYPE html>\n<html lang=\"ja\">\n <head>\n <meta charset=\"UTF-8\">\n <title>BBS<\/title>\n <\/head>\n <body>\n <h1 id=\"bbs-3\">BBS<\/h1>\n <form action=\"bbs.php\" method=\"post\">\n \u540d\u524d:\u3000<input type=\"text\" name=\"name\" \/><br>\n \u5185\u5bb9:\u3000<input type=\"text\" name=\"comment\" size=\"60\" \/><br>\n <input type=\"submit\" name=\"submit\" value=\"\u9001\u4fe1\" \/>\n <\/form>\n <\/body>\n <?php\n \u3000 \u3000\/\/DB\u306b\u63a5\u7d9a\n $mysql = mysqli_connect('localhost', 'root', 'PASS', 'fp_bbs');\n if (!$mysql) {\n exit('DB\u63a5\u7d9a\u30a8\u30e9\u30fc');\n } \n\u3000\u3000\u3000\u3000\u3000\u3000\u3000mysqli_set_charset($mysql, 'utf8');\n \/\/DB\u306e\u9078\u629e\n $result = mysqli_select_db($mysql, 'fp_bbs');\n if (!$result) {\n exit('DB\u9078\u629e\u30a8\u30e9\u30fc');\n } \n $errors = array();\n ?>\n<\/html>\n<\/pre><\/div>\n\n\n<p>\u307e\u305a$\u3067\u5909\u6570\u3092\u5ba3\u8a00\u3057\u3001\u305d\u306e\u4e2d\u306bMySQL\u3078\u306e\u63a5\u7d9a\u60c5\u5831\u3092\u66f8\u304d\u8fbc\u307f\u307e\u3059\u3002<br>\u63a5\u7d9a\u60c5\u5831\u306f\uff08\u30db\u30b9\u30c8\u307e\u305f\u306fIP,\u3000\u30e6\u30fc\u30b6\u30fc\u540d,\u3000\u30d1\u30b9\u30ef\u30fc\u30c9,\u3000DB\u540d\uff09\u3002<br>\u63a5\u7d9a\u304c\u30a8\u30e9\u30fc\u306e\u5834\u5408\u306f\u3001exit()\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u7d42\u4e86\u3057\u3001\u753b\u9762\u306b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u51fa\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>MySQL\u3078\u306e\u63a5\u7d9a\u304c\u5b8c\u4e86\u3059\u308c\u3070\u3001\u6b21\u306f\u4f7f\u7528\u3059\u308bDB\u306e\u9078\u629e\u3092\u66f8\u304d\u307e\u3059\u3002<br>mysqli_select_db(\u63a5\u7d9a\u60c5\u5831, DB\u540d)<br>\u3053\u308c\u3067\u4f7f\u7528\u3059\u308bDB\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u5b8c\u4e86\u3068\u306a\u308a\u307e\u3059\u3002<br>\u307e\u305f\u3053\u3053\u3067\u4f7f\u7528\u3057\u305fmysqli\u304c\u5148\u307b\u3069\u78ba\u8a8d\u3057\u305f\u30e9\u30a4\u30d6\u30e9\u30ea\u6a5f\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<br>\u63a5\u7d9a\u306e\u51e6\u7406\u3082\u554f\u984c\u306a\u304f\u3067\u304d\u305f\u306e\u3067\u3001php\u306e\u8a2d\u5b9a\u3082\u554f\u984c\u306a\u3055\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"php2-3\">\u540d\u524d\u306e\u30c1\u30a7\u30c3\u30af<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: php; title: ; notranslate\" title=\"\">\n\/\/\u540d\u524d\u306e\u30c1\u30a7\u30c3\u30af\n$name = null;\n\/\/\u540d\u524d\u304cnull\u3067\u306a\u3044\u3053\u3068\u3092\u30c1\u30a7\u30c3\u30af\nif(!isset($_POST['name']) || !strlen($_POST['name'])) {\n\u3000 $errors['name'] = '\u540d\u524d\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n} else if (strlen($_POST['name']) > 40) {\n $errors['name'] = '\u540d\u524d\u306f40\u6587\u5b57\u4ee5\u5185\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n} else {\n $name = $_POST['name'];\n}\n<\/pre><\/div>\n\n\n<p>\u540d\u524d\u306e\u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u306b\u5165\u529b\u3057\u305f\u5024\u304c\u4e0a\u8a18\u306e\u30c1\u30a7\u30c3\u30af\u306b\u3072\u3063\u304b\u308b\u5834\u5408\u3001\u30a8\u30e9\u30fc\u306e\u914d\u5217\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5165\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<br>\u3053\u308c\u306f\u6b21\u56de\u8a18\u4e8b\u3067\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u8868\u793a\u306e\u969b\u306b\u4f7f\u3046\u60f3\u5b9a\u3067\u3059\u3002<br>\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u306e\u5bfe\u8c61\u306f\u3001\u4e0b\u8a18\u306e\u70b9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li> \u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u304c\u7a7a\u767d\u3067\u306a\u3044<\/li><li>\u6587\u5b57\u304c40\u6587\u5b57\u3092\u8d85\u3048\u3066\u3044\u306a\u3044\u304b\uff08\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u6642\u306bVARCHAR(40)\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u305f\u3081\uff09 <\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"php2-4\">\u6295\u7a3f\u5185\u5bb9\u306e\u30c1\u30a7\u30c3\u30af<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: php; title: ; notranslate\" title=\"\">\n \/\/\u30b3\u30e1\u30f3\u30c8\u306e\u30c1\u30a7\u30c3\u30af\n$comment = null;\n\/\/\u540d\u524d\u304cnull\u3067\u306a\u3044\u3053\u3068\u3092\u30c1\u30a7\u30c3\u30af\nif(!isset($_POST['comment']) || !strlen($_POST['comment'])) {\n\u3000$errors['comment'] = '\u30b3\u30e1\u30f3\u30c8\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n} else if (strlen($_POST['comment']) > 200) {\n $errors['comment'] = '\u30b3\u30e1\u30f3\u30c8\u306f200\u6587\u5b57\u4ee5\u5185\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n} else {\n $comment = $_POST['comment'];\n}\n<\/pre><\/div>\n\n\n<p>\u5185\u5bb9\u306e\u30c1\u30a7\u30c3\u30af\u3082\u540d\u524d\u306e\u30c1\u30a7\u30c3\u30af\u3068\u307b\u307c\u540c\u3058\u3067\u3059\u304c\u3001\u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u306e\u5165\u529b\u5024\u306b\u5bfe\u3057\u3066\u3001\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u307e\u3059\u3002<br>\u30c1\u30a7\u30c3\u30af\u7b87\u6240\u306f\u4e0b\u8a18\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u304c\u7a7a\u767d\u3067\u306a\u3044<\/li><li>\u6587\u5b57\u304c200\u6587\u5b57\u3092\u8d85\u3048\u3066\u3044\u306a\u3044\u304b\uff08\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u6642\u306bVARCHAR(200)\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u305f\u3081\uff09<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"php2-5\">\u4fdd\u5b58\u51e6\u7406<\/h2>\n\n\n\n<p>\u4e0a\u8a18\u3067\u3001\u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u306e\u5024\u306b\u3088\u3063\u3066\u3001\u30a8\u30e9\u30fc\u306e\u5224\u5b9a\u3092\u3057\u3066\u304d\u307e\u3057\u305f\u3002<br>\u3053\u3053\u304b\u3089DB\u3078\u306e\u4fdd\u5b58\u51e6\u7406\u306b\u79fb\u3063\u3066\u3044\u304d\u307e\u3059\u304c\u3001\u30a8\u30e9\u30fc\u304c\u3042\u308b\u72b6\u614b\u3067\u4fdd\u5b58\u51e6\u7406\u3092\u3057\u3066\u3057\u307e\u3046\u3068\u3001<br>\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u4e0d\u5177\u5408\u306e\u5143\u3068\u306a\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u3001\u4fdd\u5b58\u306e\u6761\u4ef6\u3068\u3057\u3066\u3001\u30a8\u30e9\u30fc\u304c\u4e00\u3064\u3082\u306a\u3044\u3053\u3068\u3092\u6761\u4ef6\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: php; title: ; notranslate\" title=\"\">\n\/\/\u30a8\u30e9\u30fc\u304c\u306a\u3051\u308c\u3070\u4fdd\u5b58\nif (count($errors) === 0) {\n\u3000\/\/\u4fdd\u5b58\u3059\u308b\u305f\u3081\u306eSQL\u5206\u3092\u4f5c\u6210\n $sql ='INSERT INTO post(Pname, comment, created_day)VALUES(\"'\n \u3000.mysqli_real_escape_string($mysql, $name).'\",\"\n\u3000\u3000.mysqli_real_escape_string($mysql, $comment).'\",\\''\n .date('Y-m-d H:i:s').'\\')';\n \n \/\/\u4fdd\u5b58\u3059\u308b\n mysqli_query($mysql, $sql);\n}\n<\/pre><\/div>\n\n\n<p>$errors\u306b\u306f\u30a8\u30e9\u30fc\u306b\u306a\u3063\u305f\u6570\u3060\u3051\u5024\u304c\u5165\u3063\u3066\u304d\u307e\u3059\u306e\u3067\u3001\u30a8\u30e9\u30fc\u304c\u306a\u3044\u6642\u3060\u3051\u3001\u4fdd\u5b58\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<br>$sql\u3067\u5024\u4fdd\u5b58\u306e\u305f\u3081\u306b\u6d41\u3059INSERT\u6587\u3092\u5b9a\u7fa9\u3057\u3066\u304a\u304d\u307e\u3059\u3002<br>mysqli_query\u3067SQL\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<br><\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: php; title: ; notranslate\" title=\"\">\n<!DOCTYPE html>\n<html lang=\"ja\">\n <head>\n <meta charset=\"UTF-8\">\n <title>BBS<\/title>\n <\/head>\n <body>\n <h1 id=\"bbs-4\">BBS<\/h1>\n <form action=\"bbs.php\" method=\"post\">\n \u540d\u524d:\u3000<input type=\"text\" name=\"name\" \/><br>\n \u5185\u5bb9:\u3000<input type=\"text\" name=\"comment\" size=\"60\" \/><br>\n <input type=\"submit\" name=\"submit\" value=\"\u9001\u4fe1\" \/>\n <\/form>\n <?php\n \/\/DB\u306b\u63a5\u7d9a\n $mysql = mysqli_connect('localhost', 'root', 'AoFLS030cztQMGzd6i3e', 'fp_bbs');\n mysqli_set_charset($mysql, 'utf8');\n if (!$mysql) {\n exit('DB\u63a5\u7d9a\u30a8\u30e9\u30fc');\n } \n \/\/DB\u306e\u9078\u629e\n $result = mysqli_select_db($mysql, 'fp_bbs');\n if (!$result) {\n exit('DB\u9078\u629e\u30a8\u30e9\u30fc');\n } \n $errors = array();\n\n \/\/POST\u306a\u3089\u4fdd\u5b58\u51e6\u7406\n if($_SERVER['REQUEST_METHOD'] === 'POST') {\n \/\/\u540d\u524d\u306e\u30c1\u30a7\u30c3\u30af\n $name = null;\n \/\/\u540d\u524d\u304cnull\u3067\u306a\u3044\u3053\u3068\u3092\u30c1\u30a7\u30c3\u30af\n if(!isset($_POST['name']) || !strlen($_POST['name'])) {\n $errors['name'] = '\u540d\u524d\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n } else if (strlen($_POST['name']) > 40) {\n $errors['name'] = '\u540d\u524d\u306f40\u6587\u5b57\u4ee5\u5185\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n } else {\n $name = $_POST['name'];\n }\n \/\/\u30b3\u30e1\u30f3\u30c8\u306e\u30c1\u30a7\u30c3\u30af\n $comment = null;\n \/\/\u540d\u524d\u304cnull\u3067\u306a\u3044\u3053\u3068\u3092\u30c1\u30a7\u30c3\u30af\n if(!isset($_POST['comment']) || !strlen($_POST['comment'])) {\n $errors['comment'] = '\u30b3\u30e1\u30f3\u30c8\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n } else if (strlen($_POST['comment']) > 200) {\n $errors['comment'] = '\u30b3\u30e1\u30f3\u30c8\u306f200\u6587\u5b57\u4ee5\u5185\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n } else {\n $comment = $_POST['comment'];\n }\n \/\/\u30a8\u30e9\u30fc\u304c\u306a\u3051\u308c\u3070\u4fdd\u5b58\n if (count($errors) === 0) {\n \/\/\u4fdd\u5b58\u3059\u308b\u305f\u3081\u306eSQL\u5206\u3092\u4f5c\u6210\n $sql ='INSERT INTO post(Pname, comment, created_day)VALUES(\"'\n .mysqli_real_escape_string($mysql, $name).'\",\"'\n .mysqli_real_escape_string($mysql, $comment).'\",\\''\n .date('Y-m-d H:i:s').'\\')';\n\n \/\/\u4fdd\u5b58\u3059\u308b\n mysqli_query($mysql, $sql);\n }\n }\u3000\n ?>\n <\/body>\n<\/html>\n<\/pre><\/div>\n\n\n<p>\u5168\u3066\u306e\u30b3\u30fc\u30c9\u306f\u4e0a\u8a18\u306b\u306a\u308a\u307e\u3059\u3002<br>\u4eca\u56de\u8ffd\u52a0\u3057\u305f\u30b3\u30fc\u30c9\u306e\u524d\u306b\u3001\u901a\u4fe1\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u6307\u5b9a\u306e\u3082\u306e\u3067\u306a\u3051\u308c\u3070\u3001\u52d5\u4f5c\u3057\u306a\u3044\u3088\u3046\u306b\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_06-20_42_56-2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"508\" src=\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_06-20_42_56-2-1024x508.png\" alt=\"\" class=\"wp-image-7983\" srcset=\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_06-20_42_56-2-1024x508.png 1024w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_06-20_42_56-2-300x149.png 300w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_06-20_42_56-2-768x381.png 768w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_06-20_42_56-2-450x223.png 450w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_06-20_42_56-2-900x447.png 900w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_06-20_42_56-2.png 1897w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p>\u540d\u524d\u3068\u3072\u3068\u3053\u3068\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5165\u308c\u3066\u307f\u307e\u3057\u305f\u3002\u3053\u306e\u5185\u5bb9\u3067\u9001\u4fe1\u30dc\u30bf\u30f3\u3092\u62bc\u4e0b\u3057\u305f\u3089\u3001\u5024\u304cDB\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<br>\u78ba\u8a8d\u65b9\u6cd5\u306f\u3001\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3067\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3068GUI\u30c4\u30fc\u30eb\uff08MySQL\u306a\u3089WorkBench\u306a\u3069\uff09\u306e2\u7a2e\u985e\u3042\u308a\u307e\u3059\u304c\u3001\u4eca\u56de\u306f1\u4ef6\u3057\u304b\u4fdd\u5b58\u30c7\u30fc\u30bf\u304c\u306a\u3044\u306e\u3067\u3001\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\nmysql> show databases;\n+--------------------+\n| Database |\n+--------------------+\n| fp_bbs |\n| information_schema |\n| mysql |\n| performance_schema |\n| sakila |\n| sys |\n| world |\n+--------------------+\n7 rows in set (0.00 sec)\n\nmysql> use fp_bbs;\nDatabase changed\n\nmysql> show tables;\n+------------------+\n| Tables_in_fp_bbs |\n+------------------+\n| post |\n+------------------+\n1 row in set (0.00 sec)\nmysql> show fields from post;\n+-------------+--------------+------+-----+---------+----------------+\n| Field | Type | Null | Key | Default | Extra |\n+-------------+--------------+------+-----+---------+----------------+\n| id | int(11) | NO | PRI | NULL | auto_increment |\n| Pname | varchar(40) | YES | | NULL | |\n| comment | varchar(200) | YES | | NULL | |\n| created_day | datetime | YES | | NULL | |\n+-------------+--------------+------+-----+---------+----------------+\n4 rows in set (0.00 sec)\n\nmysql> select * from post;\n+----+--------+--------------+---------------------+\n| id | Pname | comment | created_day |\n+----+--------+--------------+---------------------+\n| 1 | Yusuke | \u306f\u3058\u3081\u307e\u3057\u3066 | 2019-09-06 13:55:28 |\n+----+--------+--------------+---------------------+\n1 row in set (0.00 sec)\n<\/pre><\/div>\n\n\n<p>DB\u306e\u9078\u629e\u304b\u3089\u3001\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u30c7\u30fc\u30bf\u306e\u53d6\u308a\u51fa\u3057\u307e\u3067\u3092\u3001\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3067\u5b9f\u884c\u3057\u3066\u307f\u307e\u3057\u305f\u3002<br>\u5165\u529b\u3057\u305f\u5185\u5bb9\u304c\u3001\u60f3\u5b9a\u901a\u308aDB\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<br>\u3053\u308c\u3067\u6295\u7a3f\u3057\u305f\u5185\u5bb9\u304cDB\u306b\u4fdd\u5b58\u3055\u308c\u308b\u51e6\u7406\u306f\u5b8c\u6210\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u753b\u9762\u3068\u51e6\u7406\u3092\u540c\u3058\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u3093\u3067\u304a\u308a\u3001\u51e6\u7406\u3054\u3068\u306b\u5206\u5272\u3057\u305f\u307b\u3046\u304c\u53ef\u8aad\u6027\u3082\u4e0a\u304c\u308b\u305f\u3081\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b\u5f79\u5272\u6bce\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u5206\u5272\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u5165\u529b\u753b\u9762\uff1abbs.php<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: php; highlight: [9]; title: ; notranslate\" title=\"\">\n<!DOCTYPE html>\n<html lang=\"ja\">\n <head>\n <meta charset=\"UTF-8\">\n <title>BBS<\/title>\n <\/head>\n <body>\n <h1 id=\"bbs-5\">BBS<\/h1>\n <form action=\"connectbbs.php\" method=\"post\">\n \u540d\u524d:\u3000<input type=\"text\" name=\"name\" \/><br>\n \u5185\u5bb9:\u3000<input type=\"text\" name=\"comment\" size=\"60\" \/><br>\n <input type=\"submit\" name=\"submit\" value=\"\u9001\u4fe1\" \/>\n <\/form>\n <\/body>\n<\/html>\n<\/pre><\/div>\n\n\n<p>DB\u3068\u306e\u63a5\u7d9a\u51e6\u7406\u90e8\u5206\uff1aconnectbbs.php<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: php; highlight: [51]; title: ; notranslate\" title=\"\">\n <?php\n \/\/DB\u306b\u63a5\u7d9a\n $mysql = mysqli_connect('localhost', 'root', 'AoFLS030cztQMGzd6i3e', 'fp_bbs');\n if (!$mysql) {\n exit('DB\u63a5\u7d9a\u30a8\u30e9\u30fc');\n } \n mysqli_set_charset($mysql, 'utf8');\n \/\/DB\u306e\u9078\u629e\n $result = mysqli_select_db($mysql, 'fp_bbs');\n if (!$result) {\n exit('DB\u9078\u629e\u30a8\u30e9\u30fc');\n } \n $errors = array();\n\n \/\/POST\u306a\u3089\u4fdd\u5b58\u51e6\u7406\n if($_SERVER['REQUEST_METHOD'] === 'POST') {\n \/\/\u540d\u524d\u306e\u30c1\u30a7\u30c3\u30af\n $name = null;\n \/\/\u540d\u524d\u304cnull\u51fa\u306a\u3044\u3053\u3068\u3092\u30c1\u30a7\u30c3\u30af\n if(!isset($_POST['name']) || !strlen($_POST['name'])) {\n $errors['name'] = '\u540d\u524d\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n } else if (strlen($_POST['name']) > 40) {\n $errors['name'] = '\u540d\u524d\u306f40\u6587\u5b57\u4ee5\u5185\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n } else {\n $name = $_POST['name'];\n }\n \/\/\u30b3\u30e1\u30f3\u30c8\u306e\u30c1\u30a7\u30c3\u30af\n $comment = null;\n \/\/\u540d\u524d\u304cnull\u3067\u306a\u3044\u3053\u3068\u3092\u30c1\u30a7\u30c3\u30af\n if(!isset($_POST['comment']) || !strlen($_POST['comment'])) {\n $errors['comment'] = '\u30b3\u30e1\u30f3\u30c8\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n } else if (strlen($_POST['comment']) > 200) {\n $errors['comment'] = '\u30b3\u30e1\u30f3\u30c8\u306f200\u6587\u5b57\u4ee5\u5185\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044';\n } else {\n $comment = $_POST['comment'];\n }\n \/\/\u30a8\u30e9\u30fc\u304c\u306a\u3051\u308c\u3070\u4fdd\u5b58\n if (count($errors) === 0) {\n \/\/\u4fdd\u5b58\u3059\u308b\u305f\u3081\u306eSQL\u6587\u3092\u4f5c\u6210\n $sql ='INSERT INTO post(Pname, comment, created_day)VALUES(\"'\n .mysqli_real_escape_string($mysql, $name).'\",\"'\n .mysqli_real_escape_string($mysql, $comment).'\",\\''\n .date('Y-m-d H:i:s').'\\')';\n\n \/\/\u4fdd\u5b58\u3059\u308b\n mysqli_query($mysql, $sql);\n }else{\n var_dump($errors);\n }\n }\n include 'bbs.php';\n?>\n<\/pre><\/div>\n\n\n<p>php\u7d42\u4e86\u30bf\u30b0\u306e\u524d\u306b include ‘bbs.php’ \u3092\u5165\u529b\u3059\u308b\u3053\u3068\u3067\u3001\u753b\u9762\u5074\u3078\u3068\u9077\u79fb\u3055\u305b\u3066\u3044\u307e\u3059\u3002<br>\u30a8\u30e9\u30fc\u8868\u793a\u306f\u3001\u6b21\u56de\u8ffd\u52a0\u3059\u308b\u3082\u306e\u306e\u3001\u30a8\u30e9\u30fc\u6642\u306e\u51e6\u7406\u304c\u6a5f\u80fd\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u3001<br>var_dump\u306e\u51e6\u7406\u3092\u5165\u308c\u3066\u3044\u307e\u3059\u3002\u5f15\u6570\u3092$errors\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u3059\u3079\u3066\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<br>\u4e0b\u8a18\u306e\u753b\u50cf\u306f\u3001\u540d\u524d\u3068\u5185\u5bb9\u3092\u672a\u5165\u529b\u306e\u72b6\u614b\u3067\u9001\u4fe1\u3057\u305f\u969b\u306b\u3001\u8868\u793a\u3055\u308c\u305f\u30a8\u30e9\u30fc\u5185\u5bb9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_13-18_30_17-2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"511\" src=\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_13-18_30_17-2-1024x511.png\" alt=\"\" class=\"wp-image-8102\" srcset=\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_13-18_30_17-2-1024x511.png 1024w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_13-18_30_17-2-300x150.png 300w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_13-18_30_17-2-768x383.png 768w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_13-18_30_17-2-450x224.png 450w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_13-18_30_17-2-900x449.png 900w, https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/BBS-Google-Chrome-2019_09_13-18_30_17-2.png 1915w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"php2-6\">\u4eca\u56de\u3064\u307e\u3065\u3044\u305f\u3068\u3053\u308d<\/h2>\n\n\n\n<p>\u4eca\u56de\u4e0b\u8a18\u306e\u70b9\u3067\u3001\u89e3\u6c7a\u306b\u5c11\u3057\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>mysqli\u95a2\u6570\u304c\u672a\u5b9a\u7fa9\u306e\u30a8\u30e9\u30fc<\/li><li>PHP\u304b\u3089MySQL\u3078\u306e\u63a5\u7d9a\u304c\u3067\u304d\u306a\u3044<\/li><\/ul>\n\n\n\n<p>\u307e\u305a1\u70b9\u76ee\u306b\u95a2\u3057\u3066\u306f\u3001\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3067\u3042\u308bphp.ini\u306emysqli\u306e\u62e1\u5f35\u6a5f\u80fd\u304c\u30b3\u30e1\u30f3\u30c8\u5316\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308b\u306e\u3067\u3001\u305d\u306e\u5834\u5408\u306f\u3001\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\u3092\u5916\u3057\u3066\u6a5f\u80fd\u3092\u6709\u52b9\u5316\u3055\u305b\u307e\u3059\u3002<br><br> ;extension=mysqli \u2192 extension=mysqli<br><br>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u3082\u306e\u3060\u3068\u601d\u3044\u3001\u3053\u306e\u70b9\u306b\u6c17\u3065\u304f\u306e\u306b\u5c11\u3057\u6642\u9593\u304c\u304b\u304b\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002<br>\u3082\u3057mysqli\u95a2\u6570\u304c\u672a\u5b9a\u7fa9\u3067\u3059\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u5834\u5408\u306f\u3001\u3053\u306e\u7b87\u6240\u3092\u4fee\u6b63\u3059\u308b\u3068\u89e3\u6c7a\u3059\u308b\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>2\u70b9\u76ee\u306b\u95a2\u3057\u3066\u306f\u3001PHP\u3067MySQL\u306b\u63a5\u7d9a\u304c\u3067\u304d\u306a\u3044\u6642\u306b\u78ba\u8a8d\u3057\u305f\u65b9\u304c\u826f\u3044\u70b9\u3067\u3059\u3002<br>\u305d\u3082\u305d\u3082DB\u63a5\u7d9a\u306e\u51e6\u7406\u304b\u3089\u4f55\u3082\u51e6\u7406\u304c\u6d41\u308c\u305a\u3001\u30a8\u30e9\u30fc\u3082\u51fa\u306a\u3044\u306a\u3069\u306e\u5834\u5408\u306f\u3053\u306e\u70b9\u304c\u3001\u3042\u3066\u306f\u307e\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<br><br>\u89e3\u6c7a\u6cd5\u3068\u3057\u3066\u306f\u3001\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306b\u3066\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u8a8d\u8a3c\u65b9\u6cd5\u3092\u5909\u66f4\u3059\u308b\u4f5c\u696d\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\nmysql> select User, Plugin from mysql.user;\n+------------------+-----------------------+\n| User | Plugin |\n+------------------+-----------------------+\n| sample_user | mysql_native_password |\n| mysql.infoschema | mysql_native_password |\n| mysql.session | mysql_native_password |\n| mysql.sys | mysql_native_password |\n| root | caching_sha2_password |\n+------------------+-----------------------+\n5 rows in set (0.01 sec)\n<\/pre><\/div>\n\n\n<p>\u3053\u3061\u3089\u3067\u4f7f\u7528\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u300cmysql_native_password\u300d\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u5909\u66f4\u3057\u306a\u3044\u3068\u3001\u63a5\u7d9a\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\uff08\u4eca\u56de\u306froot\u30e6\u30fc\u30b6\u30fc\uff09\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\nALTER USER \u5909\u66f4\u3057\u305f\u3044\u30e6\u30fc\u30b6\u30fc\u540d@localhost IDENTIFIED mysql_native_password BY '\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u30d1\u30b9\u30ef\u30fc\u30c9';\n<\/pre><\/div>\n\n\n<p>\u3053\u3061\u3089\u3067\u8a2d\u5b9a\u5909\u66f4\u304c\u3067\u304d\u3001\u63a5\u7d9a\u304c\u53ef\u80fd\u3068\u306a\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30b3\u30fc\u30c9\u4ee5\u5916\u3067\u8a70\u307e\u3063\u305f\u3068\u3053\u308d\u304c\u3042\u3063\u305f\u306e\u3067\u3001\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<br>\u30b3\u30fc\u30c9\u306e\u52d5\u4f5c\u4ee5\u5916\u3067\u8a70\u307e\u308b\u3068\u3053\u308d\u304c\u3042\u3063\u305f\u5834\u5408\u306f\u3001\u3053\u3061\u3089\u3082\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"php2-7\">\u6b21\u56de\u4e88\u544a<\/h2>\n\n\n\n<p>\u6b21\u56de\u306f\u3001\u6295\u7a3f\u3057\u305f\u5185\u5bb9\u304c\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u304f\u6a5f\u80fd\u3092\u4f5c\u308b\u306e\u3068\u3001\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u969b\u306b\u3001\u8a72\u5f53\u3059\u308b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u6a5f\u80fd\u3092\u4f5c\u6210\u3057\u3001\u4e00\u65e6\u7c21\u6613\u63b2\u793a\u677f\u6a5f\u80fd\u306f\u5b8c\u6210\u3068\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u76ee\u6b21 \u306f\u3058\u3081\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u540d\u524d\u306e\u30c1\u30a7\u30c3\u30af\u6295\u7a3f\u5185\u5bb9\u306e\u30c1\u30a7\u30c3\u30af\u4fdd\u5b58\u51e6\u7406\u4eca\u56de\u3064\u307e\u3065\u3044\u305f\u3068\u3053\u308d\u6b21\u56de\u4e88\u544a \u306f\u3058\u3081\u306b 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![\"\"](\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/htdocs-2019_09_05-20_09_53-1-1024x555.png\")
<\/a><\/figure>\n\n\n\n![\"\"](\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/conf-2019_09_13-17_24_13-1024x555.png\")
<\/a><\/figure>\n\n\n\n![\"\"](\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/phpinfo-Google-Chrome-2019_09_13-17_09_49-1024x526.png\")
<\/a><\/figure>\n\n\n\n![\"\"](\"https:\/\/itport.cloud\/wp-content\/uploads\/2019\/09\/phpinfo-Google-Chrome-2019_09_13-17_10_32-1024x536.png\")
<\/a><\/figure>\n\n\n\n