{"id":25917,"date":"2017-06-27T14:11:14","date_gmt":"2017-06-27T05:11:14","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=25917"},"modified":"2024-05-06T11:43:36","modified_gmt":"2024-05-06T02:43:36","slug":"%e3%80%90php%e5%85%a5%e9%96%80%e3%80%91substr%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e6%96%87%e5%ad%97%e5%88%97%e3%81%ae%e4%b8%80%e9%83%a8%e3%82%92%e5%8f%96%e5%be%97","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/25917","title":{"rendered":"mb_substr\u3084substr\u3092\u4f7f\u3044\u65e5\u672c\u8a9e\u7b49\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u3088\u3046!\uff5ePHP\u5165\u9580\uff5e"},"content":{"rendered":"

PHP\u3067\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3057\u3066\u3044\u308b\u6642\u306b\u3001\u65e5\u672c\u8a9e\u304c\u5165\u3063\u305f\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3057\u305f\u3044\u3068\u601d\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/p>\n

PHP\u3067\u306f\u6587\u5b57\u5217\u306b\u5bfe\u3057\u3066\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3057\u305f\u308a\u3001\u7f6e\u63db\u3059\u308b\u95a2\u6570<\/strong><\/span>\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<\/p>\n

\u30fbsubstr\u3068\u306f
\n\u30fbsubstr\u3092\u4f7f\u7528\u3057\u3066\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5
\n\u30fbmb_substr\u3068\u306f
\n\u30fbmb_substr\u3092\u4f7f\u7528\u3057\u3066\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089\u3001<\/p>\n

\u30fb\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u7f6e\u63db\u3059\u308b\u65b9\u6cd5
\n\u30fb\u6587\u5b57\u5217\u306e\u51fa\u73fe\u56de\u6570\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u306a\u3069\u306e\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u95a2\u6570\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n

\u4eca\u56de\u306f\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3059\u308bsubstr<\/strong><\/span>\u95a2\u6570\u3001mb_substr<\/strong><\/span>\u95a2\u6570\u3064\u3044\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\uff01<\/p>\n

substr\u95a2\u6570\u3068\u306f<\/h2>\n

\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304b\u3089\u3001\u6307\u5b9a\u3057\u305f\u4f4d\u7f6e\u304b\u3089\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b\u306b\u306fsubstr<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n

substr\u95a2\u6570\u306e\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9\u3068\u3057\u3066\u306f\u3001<\/p>\n

\u300c\u6587\u5b57\u5217\u306e\u3069\u306e\u4f4d\u7f6e\u304b\u3089\u53d6\u5f97\u3057\u305f\u3044\u30c7\u30fc\u30bf\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u304b\uff1f\u300d<\/p>\n

\u4e88\u3081\u6c7a\u307e\u3063\u3066\u3044\u308b\u5834\u5408\u306b\u4f7f\u7528\u3059\u308b\u6a5f\u4f1a\u304c\u591a\u3044\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n

substr\u95a2\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n

\u66f8\u304d\u65b9\uff1a<\/p>\n

string substr ( string $\u5165\u529b\u6587\u5b57\u5217 , int $\u958b\u59cb\u4f4d\u7f6e [, int $\u30ec\u30f3\u30b0\u30b9 ] )<\/pre>\n
\u5f15\u6570\uff1a
\n\u7b2c\u4e00\u5f15\u6570\u306b\u306f\u5165\u529b\u6587\u5b57\u5217\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u6587\u5b57\u5217\u306f\u6700\u4f4e1\u6587\u5b57\u4ee5\u4e0a\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u7b2c\u4e8c\u5f15\u6570\u306b\u306f\u958b\u59cb\u4f4d\u7f6e\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u4f8b\u3048\u30703\u3092\u6307\u5b9a\u3057\u305f\u5834\u5408\u306f\u5165\u529b\u6587\u5b57\u5217\u306e3\u6587\u5b57\u76ee\u304b\u3089\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n
\u7b2c\u4e09\u5f15\u6570\u306e\u30ec\u30f3\u30b0\u30b9\u3092\u6307\u5b9a\u3057\u305f\u5834\u5408\u306f\u3001\u958b\u59cb\u4f4d\u7f6e\u304b\u3089\u6570\u3048\u3066\u30ec\u30f3\u30b0\u30b9\u6570\uff08\u6587\u5b57\u6570\uff09\u5206<\/strong><\/span>\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u8fd4\u308a\u5024\uff1a
\n\u53d6\u5f97\u3057\u305f\u6587\u5b57\u5217\u3092\u8fd4\u3057\u307e\u3059\u3002\u5931\u6557\u3057\u305f\u5834\u5408\u306fFALSE\u3042\u308b\u3044\u306f\u7a7a\u6587\u5b57\u5217<\/strong><\/span>\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
substr\u95a2\u6570\u306e\u4f7f\u3044\u65b9<\/h2>\n
\u5b9f\u969b\u306bsubstr\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u4ee5\u4e0b\u306bsubstr\u95a2\u6570\u3092\u4f7f\u7528\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n
\/\/4\u756a\u76ee\u304b\u3089\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\r\n$result = substr('one two three', 4);\r\necho $result.'<br>';\r\n \r\n\/\/\u6587\u5b57\u5217\u306e\u5f8c\u304b\u3089\u6570\u3048\u30669\u756a\u76ee\u304b\u3089\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\r\n$result = substr('one two three', -9);\r\necho $result.'<br>';\r\n \r\n\/\/4\u756a\u76ee\u304b\u30893\u6587\u5b57\u53d6\u5f97\r\n$result = substr('one two three', 4, 3);\r\necho $result;<\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n
two three\r\ntwo three\r\ntwo<\/pre>\n
\u4e0a\u8a18\u306e\u3088\u3046\u306bsubstr\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308c\u3070\u3001\u6307\u5b9a\u3057\u305f\u958b\u59cb\u4f4d\u7f6e\u304b\u3089\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97<\/strong><\/span>\u3057\u305f\u308a\u3001\u958b\u59cb\u4f4d\u7f6e\u304b\u3089\u306e\u6587\u5b57\u6570\u5206\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97<\/strong><\/span>\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001\u30de\u30a4\u30ca\u30b9\u5024\u3092\u6307\u5b9a\u3059\u308b\u3068\u6587\u5b57\u5217\u306e\u5f8c\u308d\u304b\u3089\u6307\u5b9a\u3057\u305f\u6587\u5b57\u4f4d\u7f6e\u304b\u3089\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n
substr\u95a2\u6570\u3067\u65e5\u4ed8\u3092\u53d6\u5f97\u3059\u308b<\/h4>\n
\u5e74\u6708\u65e5\u300cY-m-d H:i:s\u300d<\/strong><\/span>\u306a\u3069\u306e\u30c7\u30fc\u30bf\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u304c\u4e88\u3081\u6c7a\u307e\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001substr\u95a2\u6570\u3067\u300c\u5e74\u6708\u65e5\u300d\u3084\u300c\u6708\u65e5\u300d\u306a\u3069\u306e\u30c7\u30fc\u30bf\u306e\u307f\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
$date = "2018-03-01 :12:00:00";\r\n \r\n\/\/\u5e74\u6708\u65e5\u3092\u53d6\u5f97\r\n$result = substr($date, 0, 10);\r\necho $result.'<br>';\r\n \r\n\/\/\u6708\u65e5\u3092\u53d6\u5f97\r\n$result = substr($date, 5, 5);\r\necho $result.'<br>';\r\n \r\n\/\/\u6642\u9593\u3092\u53d6\u5f97\r\n$result = substr($date, 12, 8);\r\necho $result.'<br>';<\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n
2018-03-01\r\n03-01\r\n12:00:00<\/pre>\n
\u4e0a\u8a18\u306e\u3088\u3046\u306b\u5e74\u6708\u65e5\u306e\u307f\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f\u30010\u6587\u5b57\u76ee\u304b\u308910\u6587\u5b57\u76ee\u300csubstr($date, 0, 10)\u300d\u3068\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u6708\u65e5\u3084\u6642\u9593\u3082\u540c\u3058\u3088\u3046\u306b\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
mb_substr\u95a2\u6570\u3068\u306f<\/h2>\n
\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3059\u308b\u306b\u306fmb_substr<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u3068\u306f\u30011\u6587\u5b57\u3092\u8907\u6570\u30d0\u30a4\u30c8\u3067\u8868\u3059\u4f53\u7cfb\u306e\u3053\u3068\u3092\u8a00\u3044\u307e\u3059\u3002<\/p>\n
\u65e5\u672c\u8a9e\u306a\u3069\u306e\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57<\/strong><\/span>\u306f\u3001Windows\u306eShift_Jis\u3067\u534a\u89d2\u6587\u5b57\u306f1\u30d0\u30a4\u30c8\u3001\u5168\u89d2\u6587\u5b57\u306f2\u30d0\u30a4\u30c8\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u6587\u5b57\u30b3\u30fc\u30c9UTF-8\u306e\u5834\u5408\u306f\u3001\u6587\u5b57\u30d0\u30a4\u30c8\u304c1\u6587\u5b573\u30d0\u30a4\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
mb_substr\u95a2\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
\u66f8\u304d\u65b9\uff1a<\/p>\n
string mb_substr ( string $\u5165\u529b\u6587\u5b57\u5217 , int $\u958b\u59cb\u4f4d\u7f6e [, int $\u30ec\u30f3\u30b0\u30b9 [, string $encoding ]] )<\/pre>\n
\u5f15\u6570\uff1a
\n\u7b2c\u4e00\u5f15\u6570\u306b\u306f\u5165\u529b\u6587\u5b57\u5217\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u6587\u5b57\u5217\u306f\u6700\u4f4e1\u6587\u5b57\u4ee5\u4e0a<\/strong><\/span>\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u7b2c\u4e8c\u5f15\u6570\u306b\u306f\u958b\u59cb\u4f4d\u7f6e\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u4f8b\u3048\u30703\u3092\u6307\u5b9a\u3057\u305f\u5834\u5408\u306f\u5165\u529b\u6587\u5b57\u5217\u306e3\u6587\u5b57\u76ee\u304b\u3089\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n
\u7b2c\u4e09\u5f15\u6570\u306e\u30ec\u30f3\u30b0\u30b9\u3092\u6307\u5b9a\u3057\u305f\u5834\u5408\u306f\u3001\u958b\u59cb\u4f4d\u7f6e\u304b\u3089\u6570\u3048\u3066\u30ec\u30f3\u30b0\u30b9\u6570\uff08\u6587\u5b57\u6570\uff09\u5206\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u7b2c\u56db\u5f15\u6570\u306e$encoding\u306f\u6587\u5b57\u5217\u306e\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0<\/strong><\/span>\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002
\n\u65e5\u672c\u8a9e\u3092\u6307\u5b9a\u3059\u308b\u5834\u5408\u306fWindows\u306a\u3089\u201cSJIS\u201d\u3001Mac\u3084Linux\u306a\u3089\u201cEUC-JP\u201d\u3084\u201cUTF-8\u201d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u8fd4\u308a\u5024\uff1a
\n\u958b\u59cb\u4f4d\u7f6e\u53ca\u3073\u30ec\u30f3\u30b0\u30b9\u3067\u6307\u5b9a\u3057\u305f\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
mb_substr\u95a2\u6570\u306e\u4f7f\u3044\u65b9<\/h2>\n
\u5b9f\u969b\u306bmb_substr\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u4ee5\u4e0b\u306bmb_substr\u95a2\u6570\u3092\u4f7f\u7528\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n
\/\/1\u30d0\u30a4\u30c8\u304b\u30893\u30d0\u30a4\u30c8\u53d6\u308a\u51fa\u3059\r\n$result = substr('ABCDE', 1, 3);\r\necho $result.'<br>';\r\n \r\n\/\/4\u30d0\u30a4\u30c8\u304b\u30893\u30d0\u30a4\u30c8\u53d6\u308a\u51fa\u3059\r\n$result = substr('one two three', 4, 3);\r\necho $result;<\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n
BCD\r\ntwo<\/pre>\n
mb_substr\u95a2\u6570\u3067\u65e5\u672c\u8a9e\u3092\u6271\u3046\u65b9\u6cd5<\/h4>\n
mb_substr\u95a2\u6570\u306f2\u30d0\u30a4\u30c8\u6587\u5b57\uff08\u65e5\u672c\u8a9e\uff09\u3092\u53d6\u5f97\u3067\u304d\u308b\u305f\u3081\u3001\u65e5\u672c\u8a9e\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97<\/strong><\/span>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u65e5\u672c\u8a9e\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001\u7b2c\u56db\u5f15\u6570\u306b\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u203b<\/strong><\/span>\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u6307\u5b9a\u3057\u306a\u3044\u3068\u6587\u5b57\u5316\u3051\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u306bmb_substr\u95a2\u6570\u3067\u65e5\u672c\u8a9e\u306e\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n
\/\/0\u30d0\u30a4\u30c8\u304b\u30893\u30d0\u30a4\u30c8\u53d6\u308a\u51fa\u3059\r\n$result = mb_substr('\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30de\u30f3\u30c4\u30fc\u30de\u30f3\u30ec\u30c3\u30b9\u30f3', 0, 6,"UTF-8");\r\necho $result.'<br>';\r\n \r\n\/\/8\u30d0\u30a4\u30c8\u304b\u308910\u30d0\u30a4\u30c8\u53d6\u308a\u51fa\u3059\r\n$result = mb_substr('\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30de\u30f3\u30c4\u30fc\u30de\u30f3\u30ec\u30c3\u30b9\u30f3', 8, 10,"UTF-8");\r\necho $result;<\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n
\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\r\n\u30de\u30f3\u30c4\u30fc\u30de\u30f3\u30ec\u30c3\u30b9\u30f3<\/pre>\n
\u305d\u306e\u4ed6\u306e\u6587\u5b57\u5217\u64cd\u4f5c<\/h2>\n
\u3053\u3053\u3067\u306f\u3001\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u7f6e\u63db\u3059\u308bsubstr_replace<\/strong><\/span>\u95a2\u6570\u3084\u6587\u5b57\u5217\u306e\u51fa\u73fe\u56de\u6570\u3092\u53d6\u5f97\u3059\u308bsubstr_count<\/strong><\/span>\u95a2\u6570\u306b\u3064\u3044\u3066\u3082\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n
substr_replace\u95a2\u6570\uff08\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u7f6e\u63db\uff09<\/h3>\n
\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u7f6e\u63db\u3059\u308b\u306b\u306fsubstr_replace<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u66f8\u304d\u65b9\uff1a<\/p>\n
substr_replace( $\u691c\u7d22\u5bfe\u8c61\u6587\u5b57\u5217 , $\u7f6e\u63db\u5f8c\u6587\u5b57\u5217 , $\u7f6e\u63db\u4f4d\u7f6e [, $\u7f6e\u63db\u3059\u308b\u7bc4\u56f2 ] )<\/pre>\n
\u8fd4\u308a\u5024\uff1a
\n\u7f6e\u63db\u3057\u305f\u7d50\u679c\u306e\u6587\u5b57\u5217\u3092\u8fd4\u3057\u307e\u3059\u3002\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304c\u914d\u5217\u306e\u5834\u5408\u306f\u914d\u5217\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u306bsubstr_replace\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001\u6307\u5b9a\u4f4d\u7f6e\u304b\u3089\u306e\u6587\u5b57\u5217\u3092\u7f6e\u63db\u3059\u308b\u65b9\u6cd5\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
$str = 'SamuraiEngineer';\r\n \r\n\/\/7\u756a\u76ee\u306e\u6587\u5b57\u5217\u304b\u3089'#'\u306b\u7f6e\u304d\u63db\u3048\u308b\r\n$replace = substr_replace($str, '#', 7);\r\n \r\necho $replace;<\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n
Samurai#<\/pre>\n
substr_count\u95a2\u6570\uff08\u6587\u5b57\u5217\u306e\u51fa\u73fe\u56de\u6570\uff09<\/h3>\n
\u6587\u5b57\u5217\u306e\u51fa\u73fe\u56de\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u306b\u306fsubstr_count<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
substr_count\u95a2\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
\u66f8\u304d\u65b9\uff1a<\/p>\n
int substr_count ( string $\u691c\u7d22\u5bfe\u8c61\u6587\u5b57\u5217 , string $\u691c\u7d22\u6587\u5b57\u5217 [, int $\u958b\u59cb\u4f4d\u7f6e [, int $\u30ec\u30f3\u30b0\u30b9 ]]<\/pre>\n
\u5f15\u6570\uff1a
\n\u7b2c\u4e00\u5f15\u6570\u306b\u306f\u691c\u7d22\u5bfe\u8c61\u6587\u5b57\u5217\u3092\u6307\u5b9a\u3057\u3001\u7b2c\u4e8c\u5f15\u6570\u306b\u306f\u691c\u7d22\u3059\u308b\u6587\u5b57\u5217\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u7b2c\u4e09\u5f15\u6570\u306b\u306f\u958b\u59cb\u4f4d\u7f6e\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u8ca0\u306e\u6570\u3092\u6307\u5b9a\u3059\u308b\u3068\u6587\u5b57\u5217\u306e\u672b\u5c3e\u304b\u3089\u6570\u3048\u307e\u3059\u3002<\/p>\n
\u7b2c\u56db\u5f15\u6570\u306b\u306f\u6587\u5b57\u5217\u306e\u6700\u5927\u9577\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u8fd4\u308a\u5024\uff1a
\n\u30d2\u30c3\u30c8\u3057\u305f\u6587\u5b57\u5217\u306e\u51fa\u73fe\u56de\u6570\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u3001\u6587\u5b57\u5217\u2019today is rainy. It is likely to rain tomorrow.\u2019\u306e\u4e2d\u306b\u3001\u2019rain\u2019\u304c\u3044\u304f\u3064\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3001\u30ab\u30a6\u30f3\u30c8\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
$text = 'today is rainy. It is likely to rain tomorrow.';\r\n \r\n\/\/\u6587\u5b57\u5217\u306e\u4e2d\u306b'rain'\u304c\u542b\u307e\u308c\u308b\u304b\r\n$count =  substr_count($text, 'rain');\r\necho $count.'<br>';\r\n \r\n\/\/16\u6587\u5b57\u76ee\u304b\u3089\u306e\u6587\u5b57\u5217\u306b'rain'\u304c\u542b\u307e\u308c\u308b\u304b\uff1f\r\n$count =  substr_count($text, 'rain', 16);\r\necho $count.'<br>';\r\n \r\n\/\/16\u6587\u5b57\u76ee\u304b\u3089+10\u6587\u5b57\u76ee\u307e\u3067\u306e\u6587\u5b57\u5217'It is likely'\u306b'rain'\u304c\u542b\u307e\u308c\u308b\u304b\uff1f\r\n$count =  substr_count($text, 'rain', 16, 12);\r\necho $count;<\/pre>\n
\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n
2\r\n1\r\n0<\/pre>\n
\u30b5\u30f3\u30d7\u30eb\u306e\u3088\u3046\u306b\u3001\u7528\u9014\u306b\u3088\u3063\u3066\u7b2c\u4e09\u5f15\u6570\u3084\u7b2c\u56db\u5f15\u6570\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u691c\u7d22\u5bfe\u8c61\u306e\u7bc4\u56f2\u3092\u7d5e\u308a\u8fbc\u3080\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
PHP\u306b\u3064\u3044\u3066\u3082\u3063\u3068\u77e5\u308a\u305f\u3044\u65b9\u3078<\/h2>\n
\u3044\u304b\u304c\u3067\u3057\u305f\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n
PHP\u306f\u6587\u5b57\u5217\u3092\u64cd\u4f5c\u3059\u308b\u65b9\u6cd5\u3060\u3051\u3067\u3082\u3055\u307e\u3056\u307e\u306a\u95a2\u6570\u3092\u4f7f\u7528\u3067\u304d\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u306d\uff01<\/p>\n
\u300cPHP\u306b\u3064\u3044\u3066\u5b9f\u306f\u3044\u307e\u3044\u3061\u308f\u304b\u3063\u3066\u3044\u306a\u3044\u30fb\u30fb\u30fb\u300d
\n\u300c\u3082\u3063\u3068PHP\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\uff01\u300d<\/p>\n
\u3068\u601d\u3063\u3066\u3044\u308b\u65b9\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3082\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\uff01
\n            \n                
\n                
\n                    
\n                    \n                    <\/div>\n                    
\n                    
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<\/div>\n                    
\u66f4\u65b0\u65e5\uff1a2024\u5e749\u670824\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <\/p>\n
\u307e\u3068\u3081<\/h2>\n
\u3053\u3053\u3067\u306f\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3084\u3001\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u7f6e\u63db\u3059\u308b\u65b9\u6cd5\u3001\u6587\u5b57\u5217\u306e\u51fa\u73fe\u56de\u6570\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u306a\u3069\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n
    \n
  • \u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3059\u308b\u306b\u306fsubstr\u95a2\u6570<\/li>\n
  • \u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3059\u308b\u306b\u306fmb_substr\u95a2\u6570<\/li>\n
  • \u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u7f6e\u63db\u3059\u308b\u306b\u306fsubstr_replace\u95a2\u6570<\/li>\n
  • \u6587\u5b57\u5217\u306e\u51fa\u73fe\u56de\u6570\u3092\u53d6\u5f97\u3059\u308b\u306b\u306fsubstr_count\u95a2\u6570<\/li>\n<\/ul>\n
    \u3068\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n
    \u5b9f\u969b\u306b\u3053\u306e\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u305f\u3088\u3046\u306b\u6587\u5b57\u5217\u304b\u3089\u7279\u5b9a\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u305f\u308a\u3001\u7f6e\u63db\u3059\u308b\u51e6\u7406\u306f\u3088\u304f\u4f7f\u3044\u307e\u3059\u3002<\/p>\n
    \u3082\u3057\u3001\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3001\u7f6e\u63db\u3001\u51fa\u73fe\u56de\u6570\u306a\u3069\u306e\u65b9\u6cd5\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\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP\u3067\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3057\u3066\u3044\u308b\u6642\u306b\u3001\u65e5\u672c\u8a9e\u304c\u5165\u3063\u305f\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3057\u305f\u3044\u3068\u601d\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f PHP\u3067\u306f\u6587\u5b57\u5217\u306b\u5bfe\u3057\u3066\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u5f97\u3057\u305f\u308a\u3001\u7f6e\u63db\u3059\u308b\u95a2\u6570\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001 \u30fbsubstr\u3068 […]<\/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-25917","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php-study","tag-php"],"acf":[],"yoast_head":"\nmb_substr\u3084substr\u3092\u4f7f\u3044\u65e5\u672c\u8a9e\u7b49\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u3088\u3046!\uff5ePHP\u5165\u9580\uff5e | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0<\/title>\n<meta name=\"description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c mb_substr\u3084substr\u3092\u4f7f\u3044\u65e5\u672c\u8a9e\u7b49\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u3088\u3046!\uff5ePHP\u5165\u9580\uff5e 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