{"id":1679,"date":"2022-09-19T23:32:40","date_gmt":"2022-09-19T15:32:40","guid":{"rendered":"https:\/\/www.siediyer.cn\/?p=1679"},"modified":"2022-09-19T23:32:40","modified_gmt":"2022-09-19T15:32:40","slug":"php%e5%88%a4%e6%96%ad%e6%96%87%e4%bb%b6%e4%b8%8a%e4%bc%a0%e5%9b%be%e7%89%87%e6%a0%bc%e5%bc%8f%e7%9a%84%e5%ae%9e%e4%be%8b%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.siediyer.cn\/?p=1679","title":{"rendered":"php\u5224\u65ad\u6587\u4ef6\u4e0a\u4f20\u56fe\u7247\u683c\u5f0f\u7684\u5b9e\u4f8b\u8be6\u89e3"},"content":{"rendered":"<p><strong>php\u5224\u65ad\u6587\u4ef6\u4e0a\u4f20\u56fe\u7247\u683c\u5f0f\u7684\u5b9e\u4f8b\u8be6\u89e3<\/strong><\/p>\n<p>\u5224\u65ad\u6587\u4ef6\u56fe\u7247\u7c7b\u578b<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">$type  = $_FILES['image']['tmp_name'];\/\/\u6587\u4ef6\u540d\r\n\/\/$type  = $this-&gt;getImagetype( $type ); \r\n$filetype = ['jpg', 'jpeg', 'gif', 'bmp', 'png'];\r\nif (! in_array($type, $filetype))\r\n{ \r\n return \"\u4e0d\u662f\u56fe\u7247\u7c7b\u578b\";\r\n\uff5d\r\n<\/pre>\n<p>\u5982\u4e0a\u5982\u679c\u7528\u6237\u4fee\u6539\u6587\u4ef6\u540e\u7f00\u4e3apng jpeg\u7b49\u65e0\u6cd5\u6ee1\u8db3,\u67e5\u4e86\u67e5\u8d44\u6599\u89e3\u51b3\u65b9\u6cd5\u662f\u91c7\u7528\u5224\u65ad\u6587\u4ef6\u7684\u4e8c\u8fdb\u5236\u6d41\u4fe1\u606f,\u5982\u679c\u4f60\u521a\u597d\u9047\u5230\u8fd9\u79cd\u95ee\u9898\u4e0d\u59a8\u5c1d\u8bd5\u4e00\u4e0b\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/*\u5224\u65ad\u56fe\u7247\u4e0a\u4f20\u683c\u5f0f\u662f\u5426\u4e3a\u56fe\u7247 return\u8fd4\u56de\u6587\u4ef6\u540e\u7f00\r\npublic function getImagetype($filename)\r\n{\r\n $file = fopen($filename, 'rb');\r\n $bin = fread($file, 2); \/\/\u53ea\u8bfb2\u5b57\u8282\r\n fclose($file);\r\n $strInfo = @unpack('C2chars', $bin);\r\n $typeCode = intval($strInfo['chars1'].$strInfo['chars2']);\r\n \/\/ dd($typeCode);\r\n $fileType = '';\r\n switch ($typeCode) {\r\n  case 255216:\r\n   $fileType = 'jpg';\r\n   break;\r\n  case 7173:\r\n   $fileType = 'gif';\r\n   break;\r\n  case 6677:\r\n   $fileType = 'bmp';\r\n   break;\r\n  case 13780:\r\n   $fileType = 'png';\r\n   break;\r\n  default:\r\n   $fileType = '\u53ea\u80fd\u4e0a\u4f20\u56fe\u7247\u7c7b\u578b\u683c\u5f0f';\r\n }\r\n \/\/ if ($strInfo['chars1']=='-1' AND $strInfo['chars2']=='-40' ) return 'jpg';\r\n \/\/ if ($strInfo['chars1']=='-119' AND $strInfo['chars2']=='80' ) return 'png';\r\n return $fileType;\r\n}\r\n<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>php\u5224\u65ad\u6587\u4ef6\u4e0a\u4f20\u56fe\u7247\u683c\u5f0f\u7684\u5b9e\u4f8b\u8be6\u89e3 \u5224\u65ad\u6587\u4ef6\u56fe\u7247\u7c7b\u578b $type = $_FILES[&#8216;image&#8217;][&#8216;t [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[137],"class_list":["post-1679","post","type-post","status-publish","format-standard","hentry","category-php","tag-137"],"_links":{"self":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/1679","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1679"}],"version-history":[{"count":1,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/1679\/revisions"}],"predecessor-version":[{"id":1680,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/1679\/revisions\/1680"}],"wp:attachment":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1679"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1679"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}