{"id":45,"date":"2014-02-05T00:00:00","date_gmt":"2014-02-04T15:00:00","guid":{"rendered":"http:\/\/taitan916.info\/blog\/?p=45"},"modified":"2024-05-22T18:57:24","modified_gmt":"2024-05-22T09:57:24","slug":"post-45","status":"publish","type":"post","link":"https:\/\/taitan916.info\/blog\/archives\/45","title":{"rendered":"PHP\u3067\u30a8\u30e9\u30fc\u30ed\u30b0\u7b49\u306e\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u6307\u5b9a\u3057\u305f\u884c\u6570\u3092\u8868\u793a\u3055\u305b\u308b\u65b9\u6cd5"},"content":{"rendered":"

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\n\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u3042\u3063\u3066\u3001\u3069\u3046\u3044\u3063\u305f\u4f5c\u308a\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304b
\n\u6c17\u306b\u306a\u3063\u305f\u306e\u3067\u30e1\u30e2\u3002<\/p>\n

 <\/p>\n

\u30b5\u30f3\u30d7\u30eb<\/h2>\n

https:\/\/taitan916.info\/sample\/logcheck\/<\/a><\/p>\n

 <\/p>\n

\u30bd\u30fc\u30b9<\/h2>\n
<html lang=\"ja\">\r\n<meta http-equiv=\"Content-Type\" content=\"text\/html; charset=UTF-8\">\r\n<head>\r\n<\/head>\r\n<body>\r\n    <form action=\"\" method=\"GET\">\r\n        <table width=\"100%\">\r\n            <tr>\r\n                <td class=\"title\">\r\n                    \u53d6\u5f97\u884c\u6570\r\n                <\/td>\r\n                <td class=\"left\">\r\n                    <input type=\"text\" name=\"rows\" size=\"20\" \/>\u884c\r\n                    <input type=\"submit\" value=\"\u8868\u793a\u3059\u308b\" \/>\r\n                <\/td>\r\n            <\/tr>\r\n        <\/table>\r\n    <\/form>\r\n    <?php\r\n    $log_file = \"test.log\";\r\n    $log_data = file($log_file); \/\/\u914d\u5217\u306b\u683c\u7d0d\r\n    $rows    = isset($_GET['rows']) ? max(0,intval($_GET['rows'])) : 5; \/\/\u6700\u5927\u8868\u793a\u884c\u6570\r\n    if ($rows >= count($log_data)) { \/\/\u8a2d\u5b9a\u3057\u305f\u8868\u793a\u884c\u6570\u304c\u3001\u5168\u4f53\u884c\u6570\u3088\u308a\u5927\u304d\u3044\u5834\u5408\r\n        $rows = count($log_data); \/\/\u8868\u793a\u884c\u6570\u306f\u5168\u4f53\u8868\u793a\u884c\u6570\u3068\u3059\u308b\r\n    }\r\n    $n = count($log_data) - $rows; \/\/\u5168\u4f53\u884c\u6570 - \u8868\u793a\u884c\u6570\u3092\u53d6\u5f97\r\n    for ($i = count($log_data); $i >= $n; $i--) { \/\/\u6700\u65b0\u5206\u304b\u3089\u53e4\u3044\u65b9\u3078$n\u307e\u3067\u30c7\u30af\u30ea\u30e1\u30f3\u30c8\u3002\r\n    echo $log_data[$i] . \"<br \/>\\n\"; \/\/\u8868\u793a\u3057\u3066\u3044\u304f\r\n    }\r\n    ?>\r\n<\/body>\r\n<\/html><\/pre>\n","protected":false},"excerpt":{"rendered":"
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