下面小编就为大家带来一篇php解析mht文件转换成html的实例。小编觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随小编过来看看吧

php解析mht文件，使用编辑器打开可以看到base64编码所以，mht是可以转换成html的。

<?php/** * 针对Mht格式的文件进行解析* 使用例子:* * function mhtmlParseBody($filename) {if (file_exists ( $filename )) {if (is_dir ( $filename )) return false;$filename = strtolower ( $filename );if (strpos ( $filename, &#39;.mht&#39;, 1 ) == FALSE) return false;$o_mhtml = new mhtml ();$o_mhtml->set_file ( $filename );$o_mhtml->extract ();return $o_mhtml->get_part_to_file(0);}return null;}function mhtmlParseAll($filename) {if (file_exists ( $filename )) {if (is_dir ( $filename )) return false;$filename = strtolower ( $filename );if (strpos ( $filename, &#39;.mht&#39;, 1 ) == FALSE) return false;$o_mhtml = new mhtml ();$o_mhtml->set_file ( $filename );$o_mhtml->extract ();return $o_mhtml->get_all_part_file();}return null;}*/class mhtparse {var $file = &#39;&#39;;var $boundary = &#39;&#39;;var $filedata = &#39;&#39;;var $countparts = 1;var $log = &#39;&#39;;function extract() {$this->read_filedata ();$this->file_parts ();return 1;}function set_file($p) {$this->file = $p;}function get_log() {return $this->log;}function file_parts() {$lines = explode ( "\n", substr ( $this->filedata, 0, 8192 ) );foreach ( $lines as $line ) {$line = trim ( $line );if (strpos ( $line, &#39;=&#39; ) !== FALSE) {if (strpos ( $line, &#39;boundary&#39;, 0 ) !== FALSE) {$range = $this->getrange ( $line, &#39;"&#39;, &#39;"&#39;, 0 );$this->boundary = "--" . $range [&#39;range&#39;];$this->filedata = str_replace ( $line, &#39;&#39;, $this->filedata );break;}}}if ($this->boundary != &#39;&#39;) {$this->filedata = explode ( $this->boundary, $this->filedata );unset ( $this->filedata [0] );$this->filedata = array_values ( $this->filedata );$this->countparts = count ( $this->filedata );} else {$tmp = $this->filedata;$this->filedata = array ($tmp );}}function get_all_part_file() {return $this->filedata;}function get_part_to_file($i) {$line_data_start = 0;$encoding = &#39;&#39;;$part_lines = explode ( "\n", ltrim ( $this->filedata [$i] ) );foreach ( $part_lines as $line_id => $line ) {$line = trim ( $line );if ($line == &#39;&#39;) {if (trim ( $part_lines [0] ) == &#39;--&#39;)return 1;$line_data_start = $line_id;break;}if (strpos ( $line, &#39;:&#39; ) !== FALSE) {$pos = strpos ( $line, &#39;:&#39; );$k = strtolower ( trim ( substr ( $line, 0, $pos ) ) );$v = trim ( substr ( $line, $pos + 1, strlen ( $line ) ) );if ($k == &#39;content-transfer-encoding&#39;) {$encoding = $v;}if ($k == &#39;content-location&#39;) {$location = $v;}if ($k == &#39;content-type&#39;) {$contenttype = $v;}}}foreach ( $part_lines as $line_id => $line ) {if ($line_id <= $line_data_start)$part_lines [$line_id] = &#39;&#39;;}$part_lines = implode ( &#39;&#39;, $part_lines );if ($encoding == &#39;base64&#39;)$part_lines = base64_decode ( $part_lines );elseif ($encoding == &#39;quoted-printable&#39;)$part_lines = imap_qprint ( $part_lines );return $part_lines;}function read_filedata() {$handle = fopen ( $this->file, &#39;r&#39; );$this->filedata = fread ( $handle, filesize ( $this->file ) );fclose ( $handle );}function getrange(&$subject, $Beginmark_str = &#39;{&#39;, $Endmark_str = &#39;}&#39;, $Start_pos = 0) {/* * $str="sssss { x { xx } {xx{xx } x} x} sssss"; $range=string::getRange($str,&#39;{&#39;,&#39;}&#39;,0); echo $range[&#39;range&#39;];  //tulem: " x { xx } {xx{xx } x} x" echo $range[&#39;behin&#39;];  //tulem: 6 echo $range[&#39;end&#39;];  //tulem: 30 (&#39; &#39;) -- l5pumärgist järgnev out: array(&#39;range&#39;=>$Range,&#39;begin&#39;=>$Begin_firstOccurence_pos,&#39;end&#39;=>$End_sequel_pos) |  false v1.1 2004-2006,Uku-Kaarel J5esaar,ukjoesaar@hot.ee,http://www.php.cn/,+3725110693 */if (empty ( $Beginmark_str ))$Beginmark_str = &#39;{&#39;;$Beginmark_str_len = strlen ( $Beginmark_str );if (empty ( $Endmark_str ))$Endmark_str = &#39;}&#39;;$Endmark_str_len = strlen ( $Endmark_str );/* $Start_pos_cache = 0; */do {/* !algus */if (! is_int ( $Begin_firstOccurence_pos ))$Start_pos_cache = $Start_pos;/* ?algus-test */$Start_pos_cache = @strpos ( $subject, $Beginmark_str, $Start_pos_cache );/* this is possible start for range */if (is_int ( $Start_pos_cache )) {/* skip */$Start_pos_cache = ($Start_pos_cache + $Beginmark_str_len);/* test possible range start pos */if (is_int ( $Begin_firstOccurence_pos )) {if ($Start_pos_cache < $range_end_pos)$rangeClean = 0;elseif ($Start_pos_cache > $range_end_pos)$rangeClean = 1;}/* here it is */if (! is_int ( $Begin_firstOccurence_pos ))$Begin_firstOccurence_pos = $Start_pos_cache;} /* VIGA NR 0 ALGUST EI OLE */if (! is_int ( $Start_pos_cache )) {/* !algus *//* VIGA NR 1 ALGUSMARKI EI LEITUD : VIIMANE VOIMALIK ALGUS */if (is_int ( $Begin_firstOccurence_pos ) and ($Start_pos_cache < $range_end_pos))$rangeClean = 1;elsereturn false;}if (is_int ( $Begin_firstOccurence_pos ) and ($rangeClean != 1)) {if (! is_int ( $End_pos_cache ))$End_sequel_pos = $Begin_firstOccurence_pos;$End_pos_cache = strpos ( $subject, $Endmark_str, $End_sequel_pos );/* ok */if (is_int ( $End_pos_cache ) and ($rangeClean != 1)) {$range_current_lenght = ($End_pos_cache - $Begin_firstOccurence_pos);$End_sequel_pos = ($End_pos_cache + $Endmark_str_len);$range_end_pos = $End_pos_cache;}/* VIGA NR 2 LOPPU EI LEITUD */if (! is_int ( $End_pos_cache ))if ($End_pos_cache == false)return false;}} while ( $rangeClean < 1 );if (is_int ( $Begin_firstOccurence_pos ) and is_int ( $range_current_lenght ))$Range = substr ( $subject, $Begin_firstOccurence_pos, $range_current_lenght );elsereturn false;return array (&#39;range&#39; => $Range,&#39;begin&#39; => $Begin_firstOccurence_pos,&#39;end&#39; => $End_sequel_pos );} // end getrange()} // class?>