PHP to get information about audio files

This article mainly introduces the PHP to obtain audio files related information, very practical, the need for small partners can refer to.

Project requirements: now have an audio file upload function, after uploading PHP need to get the relevant information of this audio file, such as: time and so on, because this file is placed in the buy space, not like ffmpeg such an extension to deal with, then PHP can not get this information?

The following is a project used in the use of PHP for audio file header information of the implementation of the read and write operations, mainly for WMA and MP3 two of formats for reference.

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<?php//AudioExif.class.php///php for audio file header information Read and write//currently only supports WMA and MP3 two formats, only support a few commonly used header information///write Information support: Title (name), Ar Tist (artist), Copyright (copyright), Description (description)//year (chronology), genre (genre), Albumtitle (album title)//where MP3 and WMA slightly different, the specific return of the information may also be more, However, only the above information can be written//MP3 also support Track (track number Write)//for MP3 file support ID3v1 also support ID3v2, read priority v2, write always write to v1, if necessary write V2////Usage instructions: (Because WMA uses Unicode access, it also requires mb_convert_encoding () extension//Return of data and write data are ANSI-encoded, that is, what is displayed (Chinese _gb2312)////require (' AudioExif.class.ph P '); $AE = new Audioexif; $file = '/path/to/test.mp3 '; 1. Check that the file is complete (only for WMA, MP3 always returns TRUE)////$AE->checksize ($file); 2. Read the information, return the value by the information of the array, the key name interpretation see above////Print_r ($AE->getinfo ($file)); 3. Write information, the second parameter is a hash array, the key-> value, supported see above, MP3 also supports Track//requires the first parameter of the file path can be written by this program//$pa = Array (' title ' => ' new title ', ' Albumtitle ' => ' new album name '); $AE->setinfo ($file, $PA); Other: This plugin spent a lot of time to find WMA and MP3 file format description documents and Web pages, I hope to be useful. In fact, there are many similar programs on the Internet, but for WMA is too little, only in the win platform through the m$/API to the exercise, and MP3 is rarely able to operate on the Unix/linux command line, so deliberately write this module////If bugs are found or submitted patch, or improved to make it more robust, please let me know. (References to file formats and structures on ID3 and WMA should be available on the Web)//if (!extension_loaded (' mbstring ')) {trigger_error (' PHP extension module ') Mbstring ' is required for audioexif ', e_user_warning); return true; }//The Main class class audioexif{//Public vars var $_wma = false; var $_mp3 = false;//construct function Audioexif ( {//No To do}//Check the FileSize function checksize ($file) {$handler = & $this->_get_handler ($file); if (! $handler) return false; Return $handler->check_size ($file); }//Get the Infomations function GetInfo ($file) {$handler = & $this->_get_handler ($file); if (! $handler) return FA Lse Return $handler->get_info ($file); }//write the Infomations function SetInfo ($file, $pa) {if (!is_writable ($file)) {trigger_error (' Audioexif:file '. $ File. ' Can not been overwritten ', e_user_warning); return false; $handler = & $this->_get_handler ($file); if (! $handleR) return false; Return $handler->set_info ($file, $PA); }//Private Methods Function &_get_handler ($file) {$ext = Strtolower (STRRCHR ($file, '. ') $ret = false; if ($ext = = '. mp3 ') {//MP3 $ret = & $this->_mp3; if (! $ret) $ret = new _mp3exif ();  } else if ($ext = = '. wma ') {//WMA $ret = & $this->_wma; if (! $ret) $ret = new _wmaexif (); else {//unknown trigger_error (' Audioexif not supported '. $ext. ' File. ', e_user_warning); return $ret; }  //DBCS => gb2312 function DBCS_GBK ($STR) {//Strip The Last "" $str = substr ($str, 0,-2); Return mb_convert_encoding ($str, ' GBK ', ' ucs-2le '); }  //gb2312 => DBCS function Gbk_dbcs ($str) {$str = mb_convert_encoding ($str, ' ucs-2le ', ' GBK '); $str. = ""; return $str; }  //File Exif class _audioexif {var $fd; var $head; var $head _off; var $head _buf  /init the file handler function _file_init ($fpath, $write = False) {$mode = ($write? ' rb+ ': ' RB '); $this->fd = @fopen ($FPAth, $mode); if (! $this->fd) {trigger_error (' audioexif: ') $fpath. ' Can ' is opened with mode '. $mode. ", e_user_warning); return false; } $this->head = false; $this->head_off = 0; $this->head_buf = '; return true; }  //read buffer from the HEAD_BUF & Move pointer function _read_head_buf ($len) {if ($len <= 0) ret Urn NULL; $buf = substr ($this->head_buf, $this->head_off, $len); $this->head_off + + strlen ($BUF); return $buf; }  //read one short value function _read_head_short () {$ord 1 = Ord (substr ($this->head_buf, $this->head_off, 1)); $ord 2 = Ord (substr ($this->head_buf, $this->head_off+1, 1)); $this->head_off + 2; Return ($ord 1 + ($ord 2<<8));  //Save the file Head function _file_save ($head, $olen, $nlen = 0) {if ($nlen = = 0) $nlen = strlen ($head); if ($ Nlen = = $olen) {//Shorter flock ($this->fd, LOCK_EX); Fseek ($this->fd, 0, Seek_set); Fwrite ($this->fd, $head, $n Len); Flock ($this->FD, Lock_un); else {//longer, buffer required $stat = Fstat ($this->fd); $fsize = $stat [' size '];  /buf required (4096?) should Not Nlen-olen > 4096 $woff = 0; $roff = $olen;  //read-A-flock ($this->fd, LOCK_EX); Fseek ($this->fd, $roff, Seek_set); $buf = Fread ($this->fd, 4096);  //seek to start fseek ($this->fd, $woff, Seek_set); Fwrite ($this->fd, $head, $nlen); $woff + + $nlen;  //seek to Woff & write the data do {$buf 2 = $buf $roff + + = 4096; if ($roff < $fsize) {fseek ($this->fd, $roff, Seek_set); $buf = Fread ($this->fd, 4096); }  //Save last buffer $len 2 = strlen ($buf 2); Fseek ($this->fd, $woff, Seek_set); Fwrite ($this->fd, $buf 2, $len 2); $woff + + $len 2; while ($roff < $fsize); Ftruncate ($this->fd, $woff); Flock ($this->fd, Lock_un); }  /Close the file function _file_deinit () {if ($this->fd) {fclose ($this->fd); $this->fd = false;}} }  //WMA class class _wmaexIf extends _audioexif {var $items 1 = Array (' Title ', ' Artist ', ' Copyright ', ' Description ', ' Reserved '); var $items 2 = Arra Y (' year ', ' genre ', ' albumtitle ');  //Check file size (length) Maybe invalid file function check_size ($file) {$ret = false; if (! $this->_file_init ($file)) return true; if ($this->_init_header ()) {$buf = Fread ($this->fd); $tmp = Unpack (' h32id/vlen/h8unused ', $buf); if ($tmp [' ID '] = = ' 3626b2758e66cf11a6d900aa0062ce6c ') {$stat = Fstat ($this->fd); $ret = ($stat [' size '] = = ($this->head[' len '] + $ tmp[' Len ']); }} $this->_file_deinit (); return $ret;  //Set info (Save the Infos) function Set_info ($file, $PA) {//Check the PA settype ($pa, ' array '); if (! $this-&G T;_file_init ($file, True)) return false; if (! $this->_init_header ()) {$this->_file_deinit (); return false;}  //parse the old header & Generate T He new header $head _body = '; $st _found = $ex _found = false; $head _num = $this->head[' num ']; while ($tmp = $tHis->_get_head_frame ()) && ($head _num > 0)) {$head _num--; if ($tmp [' id '] = = ' 3326b2758e66cf11a6d900aa0062ce6c ') {//Standard Info//1-4 $st _found = true; $st _body1 = $st _body2 = '; $lenx = Unpack ( ' V5 ', $this->_read_head_buf (10)); $tmp [' len '] = 34; Ten for ($i = 0; $i < count ($this->items1); $i + +) {$l = $lenx [$i +1]; $k = $this []->items1[$i]; $tmp [' Len '] -= $l;   $data = $this->_read_head_buf ($l); if (Isset ($pa [$k])) $data = Gbk_dbcs ($pa [$k]);   $st _body2. = $data; $st _body1. = Pack (' V ', strlen ($data)); }//Left length if ($tmp [' len '] > 0) $st _body2. = $this->_read_head_buf ($tmp [' Len ']);  //Save to Head_body $head _body. = Pack (' H32vh8 ', $tmp [' id '], strlen ($st _body1. $st _body2) +24, $tmp [' unused ']); $head _body. = $st _body1. $st _body2;   $st _body2. = $data; }  //Save to Head_body $head _body. = Pack (' h32va4 ', ' 3326b2758e66cf11a6d900aa0062ce6c ', strlen ($st _body1. $st _body 2) +24, ""); $head _body. = $st _body1. $st _boDy2; $this->head[' num ']++; }//Ex not found? if (! $ex _found) {$inum = 0; $et _body = '; foreach ($this->items2 as $k) {$nbuf = Gbk_dbcs (' wm/'. $k); $vbuf = (Isse T ($pa [$k])? Gbk_dbcs ($pa [$k]): ""); $et _body. = Pack (' V ', strlen ($NBUF)). $nbuf. Pack (' vv ', 0, strlen ($vbuf)). $vbuf; $inum + +; $head _body. = Pack (' h32va4v ', ' 40a4d0d207e3d21197f000a0c95ea850 ', strlen ($et _body) +26, ', $inum); $head _body. = $et _body; $this->head[' num ']++;  //After save $new _len = strlen ($head _body) + 30; $old _len = $this->head[' len ']; if ($new _len < $old _len) {$head _body. = Str_repeat ("", $old _len-$new _len); $new _len = $old _len; } $tmp = $this->head; $head _buf = Pack (' H32vvvh4 ', $tmp [' id '], $new _len, $tmp [' Len2 '], $tmp [' num '], $tmp [' unused ']); $head _buf. = $head _body; $this->_file_save ($head _buf, $old _len, $new _len);  //Close the file & return $this->_file_deinit (); return true;  //Get Info function Get_info ($file) {$ret = array (); if (! $this->_file_init ($file)) return false; if (! $this->_init_header ()) {$this->_file_deinit (); return false;}  /Get the data from Head_buf $head _num = $this->head[' num ']; Num of Head_frame while ($tmp = $this->_get_head_frame ()) && $head _num > 0) {$head _num--; if ($tmp [' ID ' = = = ' 3326b2758e66cf11a6d900aa0062ce6c ') {//Standard Info $lenx = unpack (' v* ', $this->_read_head_buf); for ($i = 1; $i <= count ($this->items1); $i + +) {$k = $this->items1[$i-1]; $ret [$k] = DBCS_GBK ($this->_read_head_buf ($lenx [$i]));} else if ($tmp [' id '] = = ' 40a4d0d207e3d21197f000a0c95ea850 ') {//Extended Info $inum = $this->_read_head_short (); $tmp [' Len ']-= 26; while ($inum > 0 && $tmp [' len '] > 0) {//attribute name $nlen = $this->_read_head_short (); $nbuf = $this ->_read_head_buf ($nlen);  //The flag & value Length $flag = $this->_read_head_short (); $vlen = $this->_read_head_short (); $vbuf = $this->_read_head_buf ($vlen);  //Update the XX   $tmp [' len ']-= (6 + $nlen + $vlen); $inum--;   $name = DBCS_GBK ($NBUF); $k = substr ($name, 3); if (In_array ($k, $this->items2)) {/All are string value (refer to Falg for other tags) $ret [$k] = DBCS_GBK ($VBUF);} }   Else {//Skip only if ($tmp [' Len '] >) $this->head_off + = ($tmp [' Len ']-24);}} $this->_file_deinit (); return $ret; }  //Get the header? function _init_header () {fseek ($this->fd, 0, seek_set); $buf = Fread ($this->fd); if (strlen ($BUF)!=) return False $tmp = Unpack (' h32id/vlen/vlen2/vnum/h4unused ', $buf); if ($tmp [' id ']!= ' 3026b2758e66cf11a6d900aa0062ce6c ') return false;   $this->head_buf = fread ($this->fd, $tmp [' Len ']-30); $this->head = $tmp; return true; }  //_get_head_frame () function _get_head_frame () {$buf = $this->_read_head_buf; if (strlen ($BUF)!=) re Turn false; $tmp = Unpack (' h32id/vlen/h8unused ', $buf); return $tmp; }  //MP3 class (if nOT IDv2 then select IDv1) class _mp3exif extends _audioexif {var $head 1; var $genres = array (' Blues ', ' Classic rock ', ' Coun Try ', ' dance ', ' Disco ', ' Funk ', ' Grunge ', ' Hip-Hop ', ' Jazz ', ' Metal ', ' New age ', ' oldies ', ' other ', ' Pop ', ' r&b ', ' Rap ', ' Reggae ', ' Rock ', ' Techno ', ' Industrial ', ' alternative ', ' Ska ', ' Death Metal ', ' Pranks ', ' soundtrack ', ' Euro-techno ', ' Ambient ', ' trip-hop ', ' vocal ', ' Jazz+funk ', ' Fusion ', ' Trance ', ' Classical ', ' instrumental ', ' Acid ', ' house ', ' Game ', ' Sound Clip ', ' Gospel ', ' noise ', ' alternrock ', ' Bass ', ' soul ', ' Punk ', ' space ', ' meditative ', ' instrumental Pop ', ' Instrumental rock ', ' ethnic ', ' Gothic ', ' darkwave ', ' techno-industrial ', ' Electronic ', ' pop-folk ', ' eurodance ', ' Dream ' , ' Southern Rock ', ' comedy ', ' Cult ', ' Gangsta ', ' top ', ' Christian Rap ', ' pop/funk ', ' Jungle ', ' Native American ', ' Cabaret ', ' New Wave ', ' psychadelic ', ' Rave ', ' showtunes ', ' Trailer ', ' lo-fi ', ' tribal ', ' acid Punk ', ' acid Jazz ', ' Polka ', ' Retro ', ' musical ', ' Rock & Roll ', ' Hard rock ', ' Unknown ';  //MP3 always return True function Check_size ($fiLe) {return true;}  //Get Info function Get_info ($file) {if (! $this->_file_init ($file)) return false; $ret = False if ($this->_init_header ()) {$ret = ($this->head $this->_get_v2_info (): $this->_get_v1_info ()); $ret [' Meta '] = $this->_get_meta_info (); } $this->_file_deinit (); return $ret;  //Set Info function set_info ($file, $pa) {if (! $this->_file_init ($file, True)) return false; if ($this->_ Init_header ()) {//Always save V1 info $this->_set_v1_info ($PA);//Set v2 $this need ($PA); } $this->_file_deinit (); return true;  //Get the header Information[v1+v2] file_init function _init_header () {$this->head1 = false; $th Is->head = false;  //try to get ID3v1-fseek ($this->fd, -128, seek_end); $buf = Fread ($this->fd, 128);   if (strlen ($buf) = = 128 && substr ($buf, 0, 3) = = ' TAG ') {$tmp = unpack (' A3id/a30title/a30artist/a30albumti Tle/a4year/a28descriptiOn/creserved/ctrack/cgenre ', $buf); $this->head1 = $tmp; }  //try to get ID3v2 fseek ($this->fd, 0, Seek_set); $buf = Fread ($this->fd, 10); if (strlen ($buf) = = && substr ($buf, 0, 3) = = ' ID3 ') {$tmp = unpack (' a3id/cver/crev/cflag/c4size ', $buf); $tmp [ ' Size '] = ($tmp [' size1 ']<<21) | ($tmp [' size2 ']<<14) | ($tmp [' size3 ']<<7) | $tmp [' size4 ']; unset ($tmp [' size1 '], $tmp [' size2 '], $tmp [' Size3 '], $tmp [' size4 ']);   $this->head = $tmp; $this->head_buf = fread ($this->fd, $tmp [' size ']); Return ($this->head1 | | $this->head);  //Get V1 info function _get_v1_info () {$ret = array (); $tmpa = Array (' Title ', ' Artist ', ' Copyright ', ' Descripti On ', ' year ', ' Albumtitle '); foreach ($tmpa as $tmp) {$ret [$tmp] = $this->head1[$tmp]; if ($pos = Strpos ($ret [$tmp], "")) $ret [$tmp] = substr ($ret [ $TMP], 0, $pos);  //count the genre, [Track] if ($this->head1[' Reserved '] = = 0) $ret [' Track '] = $this->head1[' Track ']; else $ret [' DescrIption ']. = Chr ($ret [' Reserved ']). Chr ($ret [' Track ']);  //Genre_idx $g = $this->head1[' genre ']; if (!isset ($this->genres[$g]) $ret [' genre '] = ' Unknown '; else $ret [' genre '] = $this->genres[$g];  /Return the value $ret [' id3v1 '] = ' yes '; return $ret;  //Get v2 Info function _get_v2_info () {$ret = array (); $items = Array (' Tcop ' => ' Copyright ', ' TPE1 ' => ') Arti St ', ' TIT2 ' => ' Title ', ' Trck ' => ' Track ', ' tcon ' => ' genre ', ' COMM ' => ' Description ', ' Tyer ' => ' year ', ' Talb ' => ' Albumtitle '); while (true) {$buf = $this->_read_head_buf, if (strlen ($BUF)!=), $tmp = Unpack (' A4fid/nsize/nflag ', $buf ); if ($tmp [' size '] = = 0) break; $tmp [' dat '] = $this->_read_head_buf ($tmp [' size ']);  //0x6000 (11000000 00000000) if ($tmp [' Flag '] & 0x6000) continue;  //Mapping the data if ($k = $items [$tmp [' FID ']]) {//if ' just ' "", Skip if (substr ($tmp [' dat '], 0, 1) = = "") $tmp [' dat '] = substr ($tmp [' Dat '], 1); $ret [$k] = $tmp[' dat ']; }  /Reset the genre if ($g = $ret [' genre ']) {if (substr ($g, 0,1) = = ' (' && substr ($g, -1,1) = ') ' $g = SUBSTR ($g, 1,-1); if (Is_numeric ($g)) {$g = Intval ($g); $ret [' genre '] = (isset ($this->genres[$g])? $this->genres[$g]: ' Unknown '); }   $ret [' id3v1 '] = ' no '; return $ret; }//Get meta info of MP3 function _get_meta_info () {//seek to the lead buf:0xff $off = 0; if ($this->head) $off = $ this->head[' size '] + 10; Fseek ($this->fd, $off, Seek_set); while (!feof ($this->fd)) {$skip = Ord (fread ($this->fd, 1)); if ($skip = = 0xff) break;} if ($skip!= 0xff) return F Alse; $buf = Fread ($this->fd, 3); if (strlen ($BUF)!= 3) return false; $tmp = Unpack (' C3 ', $buf); if ($tmp [1] & 0xf0)!= 0xf0) return false; Get the meta info $meta = array (); Get MPEG version $meta [' mpeg '] = ($tmp [1] & 0x08 1:2); $meta [' layer '] = ($tmp [1] & 0x04)? (($tmp [1] & 0x02) 1:2): (($tmp [1] & 0x02)? 3:0); $meta [' ePRO '] = ($tmp [1] & 0x01)? ' No ': ' Yes '; Bit rates $bit _rates = Array (1 => Array (1 => Array (0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,0), 2 => Array (0,32,48,56,64,80,96,112,128,160,192,224,256,320,384,0), 3 => Array ( 0,32,40,48,56,64,80,96,112,128,160,192,224,256,320,0)), 2 => Array (1 => Array ( 0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,0), 2 => Array ( 0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,0), 3 => Array (0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,0 ) ) ); $i = $meta [' mpeg ']; $j = $meta [' Layer ']; $k = ($tmp [2]>>4); $meta [' bitrate '] = $bit _rates[$i [$j] [$k]; Sample Rates < sampling rate > $sam _rates = Array (1=>array (44100,48000,32000,0), 2=>array (22050,24000,16000,0)); $meta [' samrate '] = $sam _rates[$i] [$k]; $meta ["padding"] = ($tmp [2] & 0x02)? ' On ': ' Off '; $meta ["private"] = ($tmp [2] & 0x01)? ' On ': ' Off '; Mode & Mode_ext $k = ($tmp [3]>>6); $channel _modes = Array (' Stereo ', ' joint Stereo ', ' dualChannel ', ' Single channel '); $meta [' mode '] = $channel _modes[$k]; $k = (($tmp [3]>>4) & 0x03); $extend _modes = Array (' MPG_MD_LR_LR ', ' Mpg_md_lr_i ', ' mpg_md_ms_lr ', ' mpg_md_ms_i '); $meta [' ext_mode '] = $extend _modes[$k]; $meta [' copyright '] = ($tmp [3] & 0x08)? ' Yes ': ' No '; $meta [' original '] = ($tmp [3] & 0x04)? ' Yes ': ' No '; $emphasis = Array (' None ', ' 50/15 microsecs ', ' rreserved ', ' CCITT J 17 '); $k = ($tmp [3] & 0x03); $meta [' emphasis '] = $emphasis [$k]; return $meta; }//Set V1 info function _set_v1_info ($PA) {//ID3v1 (simpled) $off = -128; if (!) ( $tmp = $this->head1)) {$off = 0; $tmp [' id '] = ' TAG '; $tmp [' Title '] = $tmp [' Artist '] = $tmp [' albumtitle '] = $tmp [' Year ' = $tmp [' Description '] = '; $tmp [' Reserved '] = $tmp [' Track '] = $tmp [' genre '] = 0;  //Basic Items $items = Array (' Title ', ' Artist ', ' Copyright ', ' Description ', ' Year ', ' Albumtitle '); foreach ($items as $k) {if (Isset ($pa [$k])) $tmp [$k] = $pa [$k];}//Genre index if (isset ($pa [' genre '])) {$g = 0; foreach ($this->genres as $gtmp) {if (!strcasecmp ($gtmp, $pa [' genre '])) break; $g + +;} $tmp [' genre '] = $g; if (Isset ($pa [' Track ']) $tmp [' Track '] = intval ($pa [' Track ']); Pack the Data $buf = Pack (' A3A30A30A30A4A28CCC ', $tmp [' id '], $tmp [' Title '], $tmp [' Artist '], $tmp [' Albumtitle '], $tmp [' Year '], $tmp [' Description '], 0, $tmp [' Track '], $tmp [' genre ']); Flock ($this->fd, LOCK_EX); Fseek ($this->fd, $off, seek_end); Fwrite ($this->fd, $BUF, 128); Flock ($this->fd, Lock_un); }//Set V2 info function _set_v2_info ($PA) {if (! $this->head) {//insert ID3 return;//No, not even/** $tmp = array (' id ' = > ' ID3 ', ' ver ' =>3, ' rev ' =>0, ' flag ' =>0); $tmp [' size '] =-10; +10 => 0 $this->head = $tmp; $this->head_buf = '; $this->head_off = 0; **/} $items = Array (' Tcop ' => ' Copyright ', ' TPE1 ' => ' Artist ', ' TIT2 ' => ' Title ', ' TRAC ' => ' Track ', ' Tcon ' => ') Genre ', ' COMM ' => ' Description ', ' Tyer ' => ' year ', ' Talb ' => ' albumtitle '); $head _body = '; while (TruE) {$buf = $this->_read_head_buf (d); if (strlen ($buf)!=) break; $tmp = Unpack (' A4fid/nsize/nflag ', $buf); if ($tm p[' size '] = = 0) break; $data = $this->_read_head_buf ($tmp [' size ']); if ($k = $items [$tmp [' FID]]] && isset ($pa [$k])) {//The data should prefix by "[Replace] $data =" ". $PA [$k]; Unset ($pa [$k]); $head _body. = Pack (' a4nn ', $tmp [' FID '], strlen ($data), $tmp [' flag ']). $data; }//Reverse the items & set the new tags $items = array_flip ($items); foreach ($pa as $k => $v) {if ($fid = $items [$k]) {$head _body. = Pack (' A4nn ', $fid, strlen ($v) + 1, 0). "" . $v; }//New length $new _len = strlen ($head _body) + 10; $old _len = $this->head[' size '] + 10; if ($new _len < $old _len) {$head _body. = Str_repeat ("", $old _len-$new _len); $new _len = $old _len; //Count the size1,2,3,4, no include the header//More abnormal algorithm ...:p (28bytes integer) $size = Array (); $nlen = $new _len-10; for ($i = 4; $i > 0; $i-) {$size [$i] = ($nlen & 0x7f); $nlen >>= 7; } $tmp = $this->head; echo "Old_len: $old _len new_len: $new _lenn"; $head _buf = Pack (' A3CCCCCCC ', $tmp [' id '], $tmp [' ver '], $tmp [' rev '], $tmp [' flag '], $size [1], $size [2], $size [3], $size [4] ); $head _buf. = $head _body; $this->_file_save ($head _buf, $old _len, $new _len); }

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