<code>header(<span>"content-type:text/html;charset=gbk"</span>); <span>$mime</span> = <span>array</span>( <span>'gif'</span> => <span>'image/gif'</span>, <span>'jpg'</span> => <span>'image/jpeg'</span>, <span>'jpeg'</span> => <span>'image/jpeg'</span>, <span>'jpe'</span> => <span>'image/jpeg'</span>, <span>'bmp'</span> => <span>'image/bmp'</span>, <span>'png'</span> => <span>'image/png'</span>, <span>'tif'</span> => <span>'image/tiff'</span>, <span>'tiff'</span> => <span>'image/tiff'</span>, <span>'pict'</span> => <span>'image/x-pict'</span>, <span>'pic'</span> => <span>'image/x-pict'</span>, <span>'pct'</span> => <span>'image/x-pict'</span>, <span>'tif'</span> => <span>'image/tiff'</span>, <span>'tiff'</span> => <span>'image/tiff'</span>, <span>'psd'</span> => <span>'image/x-photoshop'</span>, <span>'swf'</span> => <span>'application/x-shockwave-flash'</span>, <span>'js'</span> => <span>'application/x-javascrīpt'</span>, <span>'pdf'</span> => <span>'application/pdf'</span>, <span>'ps'</span> => <span>'application/postscrīpt'</span>, <span>'eps'</span> => <span>'application/postscrīpt'</span>, <span>'ai'</span> => <span>'application/postscrīpt'</span>, <span>'wmf'</span> => <span>'application/x-msmetafile'</span>, <span>'css'</span> => <span>'text/css'</span>, <span>'htm'</span> => <span>'text/html'</span>, <span>'html'</span> => <span>'text/html'</span>, <span>'txt'</span> => <span>'text/plain'</span>, <span>'xml'</span> => <span>'text/xml'</span>, <span>'wml'</span> => <span>'text/wml'</span>, <span>'wbmp'</span> => <span>'image/vnd.wap.wbmp'</span>, <span>'mid'</span> => <span>'audio/midi'</span>, <span>'wav'</span> => <span>'audio/wav'</span>, <span>'mp3'</span> => <span>'audio/mpeg'</span>, <span>'mp2'</span> => <span>'audio/mpeg'</span>, <span>'avi'</span> => <span>'video/x-msvideo'</span>, <span>'mpeg'</span> => <span>'video/mpeg'</span>, <span>'mpg'</span> => <span>'video/mpeg'</span>, <span>'qt'</span> => <span>'video/quicktime'</span>, <span>'mov'</span> => <span>'video/quicktime'</span>, <span>'lha'</span> => <span>'application/x-lha'</span>, <span>'lzh'</span> => <span>'application/x-lha'</span>, <span>'z'</span> => <span>'application/x-compress'</span>, <span>'gtar'</span> => <span>'application/x-gtar'</span>, <span>'gz'</span> => <span>'application/x-gzip'</span>, <span>'gzip'</span> => <span>'application/x-gzip'</span>, <span>'tgz'</span> => <span>'application/x-gzip'</span>, <span>'tar'</span> => <span>'application/x-tar'</span>, <span>'bz2'</span> => <span>'application/bzip2'</span>, <span>'zip'</span> => <span>'application/zip'</span>, <span>'arj'</span> => <span>'application/x-arj'</span>, <span>'rar'</span> => <span>'application/x-rar-compressed'</span>, <span>'hqx'</span> => <span>'application/mac-binhex40'</span>, <span>'sit'</span> => <span>'application/x-stuffit'</span>, <span>'bin'</span> => <span>'application/x-macbinary'</span>, <span>'uu'</span> => <span>'text/x-uuencode'</span>, <span>'uue'</span> => <span>'text/x-uuencode'</span>, <span>'latex'</span>=> <span>'application/x-latex'</span>, <span>'ltx'</span> => <span>'application/x-latex'</span>, <span>'tcl'</span> => <span>'application/x-tcl'</span>, <span>'pgp'</span> => <span>'application/pgp'</span>, <span>'asc'</span> => <span>'application/pgp'</span>, <span>'exe'</span> => <span>'application/x-msdownload'</span>, <span>'doc'</span> => <span>'application/msword'</span>, <span>'rtf'</span> => <span>'application/rtf'</span>, <span>'xls'</span> => <span>'application/vnd.ms-excel'</span>, <span>'ppt'</span> => <span>'application/vnd.ms-powerpoint'</span>, <span>'mdb'</span> => <span>'application/x-msaccess'</span>, <span>'wri'</span> => <span>'application/x-mswrite'</span>, ); <span>$url</span> = <span>'http://tp4.sinaimg.cn/1692980395/180/1298526784/0'</span>; <span>//$url = 'http://www.baidu.com/';</span><span>$ch</span> = curl_init(); curl_setopt(<span>$ch</span>, CURLOPT_URL, <span>$url</span>); curl_setopt(<span>$ch</span>, CURLOPT_USERAGENT, <span>$_SERVER</span>[<span>'HTTP_USER_AGENT'</span>]); curl_setopt(<span>$ch</span>, CURLOPT_HEADER, <span>1</span>); curl_setopt(<span>$ch</span>, CURLOPT_NOBODY, <span>1</span>); curl_setopt(<span>$ch</span>, CURLOPT_RETURNTRANSFER, <span>1</span>); <span>$contents</span> = curl_exec(<span>$ch</span>); curl_close(<span>$ch</span>); <span>if</span>(preg_match(<span>'/Content-Type:\s+(.*?)(?:;|\s)/i'</span>,<span>$contents</span>,<span>$arr</span>)){ <span>$mimestr</span> = strtolower(trim(<span>$arr</span>[<span>1</span>])); <span>$outkey</span> = array_keys(<span>$mime</span>,<span>$mimestr</span>); <span>echo</span><span>'文件类型是:'</span>.implode(<span>','</span>,<span>$outkey</span>) ; }<span>else</span>{ <span>echo</span><span>'没有匹配到类型'</span>; }</code>').addClass('pre-numbering').hide(); $(this).addClass('has-numbering').parent().append($numbering); for (i = 1; i ').text(i)); }; $numbering.fadeIn(1700); }); });
以上就介绍了 文件的MIME-TYPE,包括了方面的内容,希望对PHP教程有兴趣的朋友有所帮助。

tomakephpapplicationsfaster,关注台词:1)useopcodeCachingLikeLikeLikeLikeLikePachetoStorePreciledScompiledScriptbyTecode.2)MinimimiedAtabaseSqueriSegrieSqueriSegeriSybysequeryCachingandeffeftExting.3)Leveragephp7 leveragephp7 leveragephp7 leveragephpphp7功能forbettercodeefficy.4)

到ImprovephPapplicationspeed,关注台词:1)启用opcodeCachingwithapCutoredUcescriptexecutiontime.2)实现databasequerycachingusingpdotominiminimizedatabasehits.3)usehttp/2tomultiplexrequlexrequestsandredececonnection.4 limitsclection.4.4

依赖注入(DI)通过显式传递依赖关系,显着提升了PHP代码的可测试性。 1)DI解耦类与具体实现,使测试和维护更灵活。 2)三种类型中,构造函数注入明确表达依赖,保持状态一致。 3)使用DI容器管理复杂依赖,提升代码质量和开发效率。

databasequeryOptimizationinphpinvolVolVOLVESEVERSEVERSTRATEMIESOENHANCEPERANCE.1)SELECTONLYNLYNESSERSAYCOLUMNSTORMONTOUMTOUNSOUDSATATATATATATATATATATRANSFER.3)

phpisusedforsenderemailsduetoitsbuilt-inmail()函数andsupportiveLibrariesLikePhpMailerandSwiftMailer.1)usethemail()functionforbasicemails,butithasimails.2)butithasimimitations.2)

PHP性能瓶颈可以通过以下步骤解决:1)使用Xdebug或Blackfire进行性能分析,找出问题所在;2)优化数据库查询并使用缓存,如APCu;3)使用array_filter等高效函数优化数组操作;4)配置OPcache进行字节码缓存;5)优化前端,如减少HTTP请求和优化图片;6)持续监控和优化性能。通过这些方法,可以显着提升PHP应用的性能。

依赖性注射(DI)InphpisadesignPatternthatManages和ReducesClassDeptions,增强量产生性,可验证性和Maintainability.itallowspasspassingDepentenciesLikEdenceSeconnectionSeconnectionStoclasseconnectionStoclasseSasasasasareTers,interitationApertatingAeseritatingEaseTestingEasingEaseTeStingEasingAndScalability。

cachingimprovesphpermenceByStorcyResultSofComputationsorqucrouctationsorquctationsorquickretrieval,reducingServerLoadAndenHancingResponsetimes.feftectivestrategiesinclude:1)opcodecaching,whereStoresCompiledSinmememorytssinmemorytoskipcompliation; 2)datacaching datacachingsingMemccachingmcachingmcachings


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