{"id":87032,"date":"2024-03-21T07:50:12","date_gmt":"2024-03-20T22:50:12","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/php-%e3%81%8b%e3%82%89%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ae%e6%8b%a1%e5%bc%b5%e5%ad%90%e3%82%92%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e5%8f%96%e5%be%97%e3%81%97%e3%81%be%e3%81%99\/"},"modified":"2024-04-04T17:41:48","modified_gmt":"2024-04-04T08:41:48","slug":"php-%e3%81%8b%e3%82%89%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ae%e6%8b%a1%e5%bc%b5%e5%ad%90%e3%82%92%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e5%8f%96%e5%be%97%e3%81%97%e3%81%be%e3%81%99","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/php-%e3%81%8b%e3%82%89%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ae%e6%8b%a1%e5%bc%b5%e5%ad%90%e3%82%92%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e5%8f%96%e5%be%97%e3%81%97%e3%81%be%e3%81%99\/","title":{"rendered":"PHP \u304b\u3089\u30d5\u30a1\u30a4\u30eb\u306e\u62e1\u5f35\u5b50\u3092\u3069\u306e\u3088\u3046\u306b\u53d6\u5f97\u3057\u307e\u3059\u304b\uff1f"},"content":{"rendered":"

PHP\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u62e1\u5f35\u5b50\u306f\u6b21\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n

    \n
  1. \u30d1\u30b9\u60c5\u5831<\/li>\n<\/ol>\n
    $filename<\/span> = \"example.txt\"<\/span>;\r\n$ext<\/span> = pathinfo<\/span>($filename<\/span>, PATHINFO_EXTENSION);\r\necho<\/span> $ext<\/span>; \/\/ \u8f93\u51fa\uff1atxt<\/span>\r\n<\/code><\/pre>\n
      \n
    1. explode()<\/li>\n
    2. \u7d42\u4e86\u3059\u308b<\/li>\n<\/ol>\n
      $filename<\/span> = \"example.txt\"<\/span>;\r\n$ext<\/span> = end<\/span>(explode<\/span>(\".\"<\/span>, $filename<\/span>));\r\necho<\/span> $ext<\/span>; \/\/ \u8f93\u51fa\uff1atxt<\/span>\r\n<\/code><\/pre>\n
        \n
      1. strrchr()<\/li>\n
      2. substr()\u30e1\u30bd\u30c3\u30c9<\/li>\n<\/ol>\n
        $filename<\/span> = \"example.txt\"<\/span>;\r\n$ext<\/span> = substr<\/span>(strrchr<\/span>($filename<\/span>, \".\"<\/span>), 1<\/span>);\r\necho<\/span> $ext<\/span>; \/\/ \u8f93\u51fa\uff1atxt<\/span>\r\n<\/code><\/pre>\n
          \n
        1. \u6b63\u898f\u8868\u73fe\u3092\u4f7f\u7528\u3059\u308b\uff1a<\/li>\n<\/ol>\n
          $filename<\/span> = \"example.txt\"<\/span>;\r\n$ext<\/span> = preg_replace<\/span>('\/^.*\\.([^.]+)$\/D'<\/span>, '$1'<\/span>, $filename<\/span>);\r\necho<\/span> $ext<\/span>; \/\/ \u8f93\u51fa\uff1atxt<\/span>\r\n<\/code><\/pre>\n
          \u4e0a\u8a18\u306e\u65b9\u6cd5\u306f\u3059\u3079\u3066\u30d5\u30a1\u30a4\u30eb\u306e\u62e1\u5f35\u5b50\u3092\u53d6\u5f97\u3059\u308b\u306e\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3054\u5e0c\u671b\u306b\u5fdc\u3058\u3066\u3044\u305a\u308c\u304b\u3092\u304a\u9078\u3073\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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