blocks|key|2397246|text|这应该适用于您，请注意getduration函数：http://www.zedwood.com/article/127/php-calculate-duration-of-mp3|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2397247|entityMap|0|LINK|mutability|MUTABLE|url|http://www.zedwood.com/article/127/php-calculate-duration-of-mp3^0|P|1S|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

This should work for you, notice the getduration function: <a href="http://www.zedwood.com/article/127/php-calculate-duration-of-mp3" rel="noreferrer">http://www.zedwood.com/article/127/php-calculate-duration-of-mp3</a>

blocks|key|2253918|text|安装getid3，但如果您只需要持续时间，则可以删除除以下模块之外的所有模块：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2253919|2253920|module.audio.mp3.php|unordered-list-item|2253921|module.tag.id3v1.php|2253922|module.tag.apetag.php|2253923|module.tag.id3v2.php|2253924|2253925|使用如下代码访问持续时间：|2253926|$getID3+=+new+getID3;
$ThisFileInfo+=+$getID3->analyze($pathName);
$len=+@$ThisFileInfo['playtime_string'];+//+playtime+in+minutes:seconds,+formatted+string|code-block|syntax|javascript|2253927|在Sourceforge上获得它|offset|length|2253928|entityMap|0|LINK|mutability|MUTABLE|url|http://getid3.sourceforge.net/^0|0|0|0|0|0|0|0|0|0|1|B|0|0^^$0|@$1|2|3|4|5|6|7|15|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|17|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|18|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|19|8|@]|9|@]|A|$]]|$1|J|3|K|5|E|7|1A|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|1C|8|@]|9|@]|A|$]]|$1|O|3|P|5|Q|7|1D|8|@]|9|@]|A|$R|S]]|$1|T|3|U|5|6|7|1E|8|@]|9|@$V|1F|W|1G|1|1H]]|A|$]]|$1|X|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]]|Y|$Z|$5|10|11|12|A|$13|14]]]]

Install getid3, but if you only need duration, you can delete all but these modules:

<ul>
<li>module.audio.mp3.php</li>
<li>module.tag.id3v1.php</li>
<li>module.tag.apetag.php</li>
<li>module.tag.id3v2.php</li>
</ul>

Access the duration with code like this:

<pre><code>$getID3 = new getID3;
$ThisFileInfo = $getID3-&gt;analyze($pathName);
$len= @$ThisFileInfo['playtime_string']; // playtime in minutes:seconds, formatted string
</code></pre>

Get it at <a href="http://getid3.sourceforge.net/" rel="noreferrer">Sourceforge</a>

blocks|key|2252839|text|我已经过了这么多时间，但是没有getID3+(http://getid3.sourceforge.net/)来获取音频文件的持续时间是不可能的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2252840|1)首先使用下面的链接下载getID3库：|2252841|+https://github.com/JamesHeinrich/getID3/archive/master.zip|code-block|syntax|javascript|2252842|2)尝试下面的代码：|2252843|++++<?php
+++++++include("getid3/getid3.php");
+++++++$filename+=+'bcd4ecc6bf521da9b9a2d8b9616d1505.wav';
+++++++$getID3+=+new+getID3;
+++++++$file+=+$getID3->analyze($filename);
+++++++$playtime_seconds+=+$file['playtime_seconds'];
+++++++echo+gmdate("H:i:s",+$playtime_seconds);
++++?>|2252844|entityMap|0|LINK|mutability|MUTABLE|url|http://getid3.sourceforge.net/^0|N|U|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|13|8|@]|9|@]|C|$I|J]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

I have passed so many time, but without getID3 (<a href="http://getid3.sourceforge.net/" rel="noreferrer">http://getid3.sourceforge.net/</a>) to get duration of audio file not possible.

1) First download library of getID3 using below link:

<pre><code> https://github.com/JamesHeinrich/getID3/archive/master.zip
</code></pre>

2) Try this below code:

<pre><code> &lt;?php
 include("getid3/getid3.php");
 $filename = 'bcd4ecc6bf521da9b9a2d8b9616d1505.wav';
 $getID3 = new getID3;
 $file = $getID3-&gt;analyze($filename);
 $playtime_seconds = $file['playtime_seconds'];
 echo gmdate("H:i:s", $playtime_seconds);
 ?&gt;
</code></pre>

blocks|key|4032058|text|你可以使用ffmpeg来获取mp3或者其他许多音视频文件的时长。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4032059|4032060|在你的服务器上安装ffmpeg。|ordered-list-item|4032061|确保php+shell_exec在你的php中不受限制。|4032062|4032063|//如果(preg_match(‘/%5E？#%2B.(？：wma%7Cmp3%7Cwav%7Cmp4)/’，strtolower($file){+$filepath+=+/*您的文件路径*/；//从linux+shell中执行ffmpeg并从输出$result+=+shell_exec("ffmpeg+-i+".$filepath.‘2>&1+%7C+grep+-o+\’持续时间:0-9：.*\‘’)中抓取持续时间，则只区分您想要的音视频文件；$duration+=+str_replace('+duration：'，''，$result)；//+00:05:03.25+//获取时长$timeArr+=+preg_split('/:/'，str_replace('s'，''，$duration))；$t+=+$this->_times$file+=+(($timeArr3)？$timeArr3*1+%2B+$timeArr2+*+60+%2B+$timeArr1+*+60+*+60：$timeArr2+%2B+$timeArr1+*+60)*1000；}|4032064|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|N|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|P|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|L|$]]

You can get the duration of an mp3 or many other audio/video files by using ffmpeg.

<ol>
<li>Install ffmpeg in your server.</li>
<li>Make sure that php shell_exec is not restricted in your php.

<pre><code> // Discriminate only the audio/video files you want
 if(preg_match('/[^?#]+\.(?:wma|mp3|wav|mp4)/', strtolower($file))){
 $filepath = /* your file path */;
 // execute ffmpeg form linux shell and grab duration from output
 $result = shell_exec("ffmpeg -i ".$filepath.' 2&gt;&amp;1 | grep -o \'Duration: [0-9:.]*\'');
 $duration = str_replace('Duration: ', '', $result); // 00:05:03.25

 //get the duration in seconds
 $timeArr = preg_split('/:/', str_replace('s', '', $duration[0]));
 $t = $this-&gt;_times[$file] = (($timeArr[3])? $timeArr[3]*1 + $timeArr[2] * 60 + $timeArr[1] * 60 * 60 : $timeArr[2] + $timeArr[1] * 60)*1000;

 }
</code></pre></li>
</ol>

blocks|key|4032085|text|<?php
class+MP3File
{
protected+$filename;
public+function+__construct($filename)
{
++++$this->filename+=+$filename;
}

public+static+function+formatTime($duration)+//as+hh:mm:ss
{
++++//return+sprintf("%25d:%2502d",+$duration/60,+$duration%2560);
++++$hours+=+floor($duration+/+3600);
++++$minutes+=+floor(+($duration+-+($hours+*+3600))+/+60);
++++$seconds+=+$duration+-+($hours+*+3600)+-+($minutes+*+60);
++++return+sprintf("%2502d:%2502d:%2502d",+$hours,+$minutes,+$seconds);
}

//Read+first+mp3+frame+only...++use+for+CBR+constant+bit+rate+MP3s
public+function+getDurationEstimate()
{
++++return+$this->getDuration($use_cbr_estimate=true);
}

//Read+entire+file,+frame+by+frame...+ie:+Variable+Bit+Rate+(VBR)
public+function+getDuration($use_cbr_estimate=false)
{
++++$fd+=+fopen($this->filename,+"rb");

++++$duration=0;
++++$block+=+fread($fd,+100);
++++$offset+=+$this->skipID3v2Tag($block);
++++fseek($fd,+$offset,+SEEK_SET);
++++while+(!feof($fd))
++++{
++++++++$block+=+fread($fd,+10);
++++++++if+(strlen($block)<10)+{+break;+}
++++++++//looking+for+1111+1111+111+(frame+synchronization+bits)
++++++++else+if+($block[0]=="\xff"+&&+(ord($block[1])&0xe0)+)
++++++++{
++++++++++++$info+=+self::parseFrameHeader(substr($block,+0,+4));
++++++++++++if+(empty($info['Framesize']))+{+return+$duration;+}+//some+corrupt+mp3+files
++++++++++++fseek($fd,+$info['Framesize']-10,+SEEK_CUR);
++++++++++++$duration+%2B=+(+$info['Samples']+/+$info['Sampling+Rate']+);
++++++++}
++++++++else+if+(substr($block,+0,+3)=='TAG')
++++++++{
++++++++++++fseek($fd,+128-10,+SEEK_CUR);//skip+over+id3v1+tag+size
++++++++}
++++++++else
++++++++{
++++++++++++fseek($fd,+-9,+SEEK_CUR);
++++++++}
++++++++if+($use_cbr_estimate+&&+!empty($info))
++++++++{+
++++++++++++return+$this->estimateDuration($info['Bitrate'],$offset);+
++++++++}
++++}
++++return+round($duration);
}

private+function+estimateDuration($bitrate,$offset)
{
++++$kbps+=+($bitrate*1000)/8;
++++$datasize+=+filesize($this->filename)+-+$offset;
++++return+round($datasize+/+$kbps);
}

private+function+skipID3v2Tag(&$block)
{
++++if+(substr($block,+0,3)=="ID3")
++++{
++++++++$id3v2_major_version+=+ord($block[3]);
++++++++$id3v2_minor_version+=+ord($block[4]);
++++++++$id3v2_flags+=+ord($block[5]);
++++++++$flag_unsynchronisation++=+$id3v2_flags+&+0x80+?+1+:+0;
++++++++$flag_extended_header++++=+$id3v2_flags+&+0x40+?+1+:+0;
++++++++$flag_experimental_ind+++=+$id3v2_flags+&+0x20+?+1+:+0;
++++++++$flag_footer_present+++++=+$id3v2_flags+&+0x10+?+1+:+0;
++++++++$z0+=+ord($block[6]);
++++++++$z1+=+ord($block[7]);
++++++++$z2+=+ord($block[8]);
++++++++$z3+=+ord($block[9]);
++++++++if+(+(($z0&0x80)==0)+&&+(($z1&0x80)==0)+&&+(($z2&0x80)==0)+&&+(($z3&0x80)==0)+)
++++++++{
++++++++++++$header_size+=+10;
++++++++++++$tag_size+=+(($z0&0x7f)+*+2097152)+%2B+(($z1&0x7f)+*+16384)+%2B+(($z2&0x7f)+*+128)+%2B+($z3&0x7f);
++++++++++++$footer_size+=+$flag_footer_present+?+10+:+0;
++++++++++++return+$header_size+%2B+$tag_size+%2B+$footer_size;//bytes+to+skip
++++++++}
++++}
++++return+0;
}

public+static+function+parseFrameHeader($fourbytes)
{
++++static+$versions+=+array(
++++++++0x0=>'2.5',0x1=>'x',0x2=>'2',0x3=>'1',+//+x=>'reserved'
++++);
++++static+$layers+=+array(
++++++++0x0=>'x',0x1=>'3',0x2=>'2',0x3=>'1',+//+x=>'reserved'
++++);
++++static+$bitrates+=+array(
++++++++'V1L1'=>array(0,32,64,96,128,160,192,224,256,288,320,352,384,416,448),
++++++++'V1L2'=>array(0,32,48,56,+64,+80,+96,112,128,160,192,224,256,320,384),
++++++++'V1L3'=>array(0,32,40,48,+56,+64,+80,+96,112,128,160,192,224,256,320),
++++++++'V2L1'=>array(0,32,48,56,+64,+80,+96,112,128,144,160,176,192,224,256),
++++++++'V2L2'=>array(0,+8,16,24,+32,+40,+48,+56,+64,+80,+96,112,128,144,160),
++++++++'V2L3'=>array(0,+8,16,24,+32,+40,+48,+56,+64,+80,+96,112,128,144,160),
++++);
++++static+$sample_rates+=+array(
++++++++'1'+++=>+array(44100,48000,32000),
++++++++'2'+++=>+array(22050,24000,16000),
++++++++'2.5'+=>+array(11025,12000,+8000),
++++);
++++static+$samples+=+array(
++++++++1+=>+array(+1+=>+384,+2+=>1152,+3+=>1152,+),+//MPEGv1,+++++Layers+1,2,3
++++++++2+=>+array(+1+=>+384,+2+=>1152,+3+=>+576,+),+//MPEGv2/2.5,+Layers+1,2,3
++++);
++++//$b0=ord($fourbytes[0]);//will+always+be+0xff
++++$b1=ord($fourbytes[1]);
++++$b2=ord($fourbytes[2]);
++++$b3=ord($fourbytes[3]);

++++$version_bits+=+($b1+&+0x18)+>>+3;
++++$version+=+$versions[$version_bits];
++++$simple_version+=++($version=='2.5'+?+2+:+$version);

++++$layer_bits+=+($b1+&+0x06)+>>+1;
++++$layer+=+$layers[$layer_bits];

++++$protection_bit+=+($b1+&+0x01);
++++$bitrate_key+=+sprintf('V%25dL%25d',+$simple_version+,+$layer);
++++$bitrate_idx+=+($b2+&+0xf0)+>>+4;
++++$bitrate+=+isset($bitrates[$bitrate_key][$bitrate_idx])+?+$bitrates[$bitrate_key][$bitrate_idx]+:+0;

++++$sample_rate_idx+=+($b2+&+0x0c)+>>+2;//0xc+=>+b1100
++++$sample_rate+=+isset($sample_rates[$version][$sample_rate_idx])+?+$sample_rates[$version][$sample_rate_idx]+:+0;
++++$padding_bit+=+($b2+&+0x02)+>>+1;
++++$private_bit+=+($b2+&+0x01);
++++$channel_mode_bits+=+($b3+&+0xc0)+>>+6;
++++$mode_extension_bits+=+($b3+&+0x30)+>>+4;
++++$copyright_bit+=+($b3+&+0x08)+>>+3;
++++$original_bit+=+($b3+&+0x04)+>>+2;
++++$emphasis+=+($b3+&+0x03);

++++$info+=+array();
++++$info['Version']+=+$version;//MPEGVersion
++++$info['Layer']+=+$layer;
++++//$info['Protection+Bit']+=+$protection_bit;+//0=>+protected+by+2+byte+CRC,+1=>not+protected
++++$info['Bitrate']+=+$bitrate;
++++$info['Sampling+Rate']+=+$sample_rate;
++++$info['Framesize']+=+self::framesize($layer,+$bitrate,+$sample_rate,+$padding_bit);
++++$info['Samples']+=+$samples[$simple_version][$layer];
++++return+$info;
}

private+static+function+framesize($layer,+$bitrate,$sample_rate,$padding_bit)
{
++++if+($layer==1)
++++++++return+intval(((12+*+$bitrate*1000+/$sample_rate)+%2B+$padding_bit)+*+4);
++++else+//layer+2,+3
++++++++return+intval(((144+*+$bitrate*1000)/$sample_rate)+%2B+$padding_bit);
}
}
?>
<?php
$mp3file+=+new+MP3File("Chal_Halke.mp3");//http://www.npr.org/rss/podcast.php?id=510282
$duration1+=+$mp3file->getDurationEstimate();//(faster)+for+CBR+only
$duration2+=+$mp3file->getDuration();//(slower)+for+VBR+(or+CBR)
echo+"duration:+$duration1+seconds"."\n";

?>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4032086|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;?php
class MP3File
{
protected $filename;
public function __construct($filename)
{
 $this-&gt;filename = $filename;
}

public static function formatTime($duration) //as hh:mm:ss
{
 //return sprintf("%d:%02d", $duration/60, $duration%60);
 $hours = floor($duration / 3600);
 $minutes = floor( ($duration - ($hours * 3600)) / 60);
 $seconds = $duration - ($hours * 3600) - ($minutes * 60);
 return sprintf("%02d:%02d:%02d", $hours, $minutes, $seconds);
}

//Read first mp3 frame only... use for CBR constant bit rate MP3s
public function getDurationEstimate()
{
 return $this-&gt;getDuration($use_cbr_estimate=true);
}

//Read entire file, frame by frame... ie: Variable Bit Rate (VBR)
public function getDuration($use_cbr_estimate=false)
{
 $fd = fopen($this-&gt;filename, "rb");

 $duration=0;
 $block = fread($fd, 100);
 $offset = $this-&gt;skipID3v2Tag($block);
 fseek($fd, $offset, SEEK_SET);
 while (!feof($fd))
 {
 $block = fread($fd, 10);
 if (strlen($block)&lt;10) { break; }
 //looking for 1111 1111 111 (frame synchronization bits)
 else if ($block[0]=="\xff" &amp;&amp; (ord($block[1])&amp;0xe0) )
 {
 $info = self::parseFrameHeader(substr($block, 0, 4));
 if (empty($info['Framesize'])) { return $duration; } //some corrupt mp3 files
 fseek($fd, $info['Framesize']-10, SEEK_CUR);
 $duration += ( $info['Samples'] / $info['Sampling Rate'] );
 }
 else if (substr($block, 0, 3)=='TAG')
 {
 fseek($fd, 128-10, SEEK_CUR);//skip over id3v1 tag size
 }
 else
 {
 fseek($fd, -9, SEEK_CUR);
 }
 if ($use_cbr_estimate &amp;&amp; !empty($info))
 { 
 return $this-&gt;estimateDuration($info['Bitrate'],$offset); 
 }
 }
 return round($duration);
}

private function estimateDuration($bitrate,$offset)
{
 $kbps = ($bitrate*1000)/8;
 $datasize = filesize($this-&gt;filename) - $offset;
 return round($datasize / $kbps);
}

private function skipID3v2Tag(&amp;$block)
{
 if (substr($block, 0,3)=="ID3")
 {
 $id3v2_major_version = ord($block[3]);
 $id3v2_minor_version = ord($block[4]);
 $id3v2_flags = ord($block[5]);
 $flag_unsynchronisation = $id3v2_flags &amp; 0x80 ? 1 : 0;
 $flag_extended_header = $id3v2_flags &amp; 0x40 ? 1 : 0;
 $flag_experimental_ind = $id3v2_flags &amp; 0x20 ? 1 : 0;
 $flag_footer_present = $id3v2_flags &amp; 0x10 ? 1 : 0;
 $z0 = ord($block[6]);
 $z1 = ord($block[7]);
 $z2 = ord($block[8]);
 $z3 = ord($block[9]);
 if ( (($z0&amp;0x80)==0) &amp;&amp; (($z1&amp;0x80)==0) &amp;&amp; (($z2&amp;0x80)==0) &amp;&amp; (($z3&amp;0x80)==0) )
 {
 $header_size = 10;
 $tag_size = (($z0&amp;0x7f) * 2097152) + (($z1&amp;0x7f) * 16384) + (($z2&amp;0x7f) * 128) + ($z3&amp;0x7f);
 $footer_size = $flag_footer_present ? 10 : 0;
 return $header_size + $tag_size + $footer_size;//bytes to skip
 }
 }
 return 0;
}

public static function parseFrameHeader($fourbytes)
{
 static $versions = array(
 0x0=&gt;'2.5',0x1=&gt;'x',0x2=&gt;'2',0x3=&gt;'1', // x=&gt;'reserved'
 );
 static $layers = array(
 0x0=&gt;'x',0x1=&gt;'3',0x2=&gt;'2',0x3=&gt;'1', // x=&gt;'reserved'
 );
 static $bitrates = array(
 'V1L1'=&gt;array(0,32,64,96,128,160,192,224,256,288,320,352,384,416,448),
 'V1L2'=&gt;array(0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384),
 'V1L3'=&gt;array(0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320),
 'V2L1'=&gt;array(0,32,48,56, 64, 80, 96,112,128,144,160,176,192,224,256),
 'V2L2'=&gt;array(0, 8,16,24, 32, 40, 48, 56, 64, 80, 96,112,128,144,160),
 'V2L3'=&gt;array(0, 8,16,24, 32, 40, 48, 56, 64, 80, 96,112,128,144,160),
 );
 static $sample_rates = array(
 '1' =&gt; array(44100,48000,32000),
 '2' =&gt; array(22050,24000,16000),
 '2.5' =&gt; array(11025,12000, 8000),
 );
 static $samples = array(
 1 =&gt; array( 1 =&gt; 384, 2 =&gt;1152, 3 =&gt;1152, ), //MPEGv1, Layers 1,2,3
 2 =&gt; array( 1 =&gt; 384, 2 =&gt;1152, 3 =&gt; 576, ), //MPEGv2/2.5, Layers 1,2,3
 );
 //$b0=ord($fourbytes[0]);//will always be 0xff
 $b1=ord($fourbytes[1]);
 $b2=ord($fourbytes[2]);
 $b3=ord($fourbytes[3]);

 $version_bits = ($b1 &amp; 0x18) &gt;&gt; 3;
 $version = $versions[$version_bits];
 $simple_version = ($version=='2.5' ? 2 : $version);

 $layer_bits = ($b1 &amp; 0x06) &gt;&gt; 1;
 $layer = $layers[$layer_bits];

 $protection_bit = ($b1 &amp; 0x01);
 $bitrate_key = sprintf('V%dL%d', $simple_version , $layer);
 $bitrate_idx = ($b2 &amp; 0xf0) &gt;&gt; 4;
 $bitrate = isset($bitrates[$bitrate_key][$bitrate_idx]) ? $bitrates[$bitrate_key][$bitrate_idx] : 0;

 $sample_rate_idx = ($b2 &amp; 0x0c) &gt;&gt; 2;//0xc =&gt; b1100
 $sample_rate = isset($sample_rates[$version][$sample_rate_idx]) ? $sample_rates[$version][$sample_rate_idx] : 0;
 $padding_bit = ($b2 &amp; 0x02) &gt;&gt; 1;
 $private_bit = ($b2 &amp; 0x01);
 $channel_mode_bits = ($b3 &amp; 0xc0) &gt;&gt; 6;
 $mode_extension_bits = ($b3 &amp; 0x30) &gt;&gt; 4;
 $copyright_bit = ($b3 &amp; 0x08) &gt;&gt; 3;
 $original_bit = ($b3 &amp; 0x04) &gt;&gt; 2;
 $emphasis = ($b3 &amp; 0x03);

 $info = array();
 $info['Version'] = $version;//MPEGVersion
 $info['Layer'] = $layer;
 //$info['Protection Bit'] = $protection_bit; //0=&gt; protected by 2 byte CRC, 1=&gt;not protected
 $info['Bitrate'] = $bitrate;
 $info['Sampling Rate'] = $sample_rate;
 $info['Framesize'] = self::framesize($layer, $bitrate, $sample_rate, $padding_bit);
 $info['Samples'] = $samples[$simple_version][$layer];
 return $info;
}

private static function framesize($layer, $bitrate,$sample_rate,$padding_bit)
{
 if ($layer==1)
 return intval(((12 * $bitrate*1000 /$sample_rate) + $padding_bit) * 4);
 else //layer 2, 3
 return intval(((144 * $bitrate*1000)/$sample_rate) + $padding_bit);
}
}
?&gt;
&lt;?php
$mp3file = new MP3File("Chal_Halke.mp3");//http://www.npr.org/rss/podcast.php?id=510282
$duration1 = $mp3file-&gt;getDurationEstimate();//(faster) for CBR only
$duration2 = $mp3file-&gt;getDuration();//(slower) for VBR (or CBR)
echo "duration: $duration1 seconds"."\n";

?&gt;
</code></pre>

blocks|key|4123631|text|没有本机php函数可以做到这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4123632|根据您的服务器环境，您可以使用诸如MP3Info之类的工具。|offset|length|4123633|$length+=+shell_exec('mp3info+-p+"%25S"+sample.mp3');+++//+total+time+in+seconds|code-block|syntax|javascript|4123634|entityMap|0|LINK|mutability|MUTABLE|url|http://www.ibiblio.org/mp3info/^0|0|H|7|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@$D|U|E|V|1|W]]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

There is no native php function to do this.

Depending on your server environment, you may use a tool such as <a href="http://www.ibiblio.org/mp3info/" rel="nofollow">MP3Info</a>.

<pre><code>$length = shell_exec('mp3info -p "%S" sample.mp3'); // total time in seconds
</code></pre>

blocks|key|4031960|text|MP3长度不会存储在任何地方(以“普通”MP3格式)，因为MP3被设计为“拆分”成帧，并且这些帧将保持可播放。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4031961|http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm|offset|length|4031962|如果您没有可以依赖的ID标记，那么您需要做的(有一些工具和PHP类可以做到这一点)就是读取整个MP3文件并对每一帧的持续时间求和。|4031963|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1E|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@$D|Q|E|R|1|S]]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|C]]]]

The MP3 length is not stored anywhere (in the "plain" MP3 format), since MP3 is designed to be "split" into frames and those frames will remain playable.

<a href="http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm" rel="nofollow">http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm</a>

If you have no ID tag on which to rely, what you would need to do (there are tools and PHP classes that do this) is to read the whole MP3 file and sum the durations of each frame.

blocks|key|2397465|text|$getID3+=+new+getID3;
$ThisFileInfo+=+$getID3->analyze($pathName);

//+playtime+in+minutes:seconds,+formatted+string
$len+=+@$ThisFileInfo['playtime_string'];+

//don't+get+playtime_string,+but+get+playtime_seconds
$len+=+@$ThisFileInfo['playtime_seconds']*1000;+//*1000+as+calculate+millisecond|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2397466|我希望这对你有帮助。|unstyled|2397467|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>$getID3 = new getID3;
$ThisFileInfo = $getID3-&gt;analyze($pathName);

// playtime in minutes:seconds, formatted string
$len = @$ThisFileInfo['playtime_string']; 

//don't get playtime_string, but get playtime_seconds
$len = @$ThisFileInfo['playtime_seconds']*1000; //*1000 as calculate millisecond
</code></pre>

I hope this helps you.

blocks|key|2397539|text|最后，我用自己的计算开发了一个解决方案。此解决方案最适用于mp3和WAV文件格式。然而，预计会出现微小的精度变化。解决方案在PHP中。我从WAV那里得到了一点线索|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2397540|function+calculateFileSize($file){

++++$ratio+=+16000;+//bytespersec

++++if+(!$file)+{

++++++++exit("Verify+file+name+and+it's+path");

++++}

++++$file_size+=+filesize($file);

++++if+(!$file_size)
++++++++exit("Verify+file,+something+wrong+with+your+file");

++++$duration+=+($file_size+/+$ratio);
++++$minutes+=+floor($duration+/+60);
++++$seconds+=+$duration+-+($minutes+*+60);
++++$seconds+=+round($seconds);
++++echo+"$minutes:$seconds+minutes";

}

$file+=+'apple-classic.mp3';+//Enter+File+Name+mp3/wav
calculateFileSize($file);|code-block|syntax|javascript|2397541|entityMap|0|LINK|mutability|MUTABLE|url|https://en.wikipedia.org/wiki/WAV^0|T|3|X|3|1Q|3|1X|3|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Finally, I developed a solution with my own calculations. This solution works best for mp3 and WAV files formats. However minor precision variations are expected. The solution is in PHP. I take little bit clue from <a href="https://en.wikipedia.org/wiki/WAV" rel="nofollow noreferrer">WAV</a>

<pre><code>function calculateFileSize($file){

 $ratio = 16000; //bytespersec

 if (!$file) {

 exit("Verify file name and it's path");

 }

 $file_size = filesize($file);

 if (!$file_size)
 exit("Verify file, something wrong with your file");

 $duration = ($file_size / $ratio);
 $minutes = floor($duration / 60);
 $seconds = $duration - ($minutes * 60);
 $seconds = round($seconds);
 echo "$minutes:$seconds minutes";

}

$file = 'apple-classic.mp3'; //Enter File Name mp3/wav
calculateFileSize($file);
</code></pre>

blocks|key|4032172|text|如前所述，我为mp3和WAV文件提供了一个解决方案，现在这个解决方案专门针对唯一的WAV文件，具有更高的精度，但与以前的解决方案相比，<>e29时间更长。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4032173|function+calculateWavDuration(+$file+)+{

++++$fp+=+fopen($file,+'r');

++++if+(fread($fp,+4)+==+"RIFF")+{

++++++++fseek($fp,+20);
++++++++$raw_header+=+fread($fp,+16);
++++++++$header+=+unpack('vtype/vchannels/Vsamplerate/Vbytespersec/valignment/vbits',+$raw_header);
++++++++$pos+=+ftell($fp);

++++++++while+(fread($fp,+4)+!=+"data"+&&+!feof($fp))+{

++++++++++++$pos%2B%2B;
++++++++++++fseek($fp,+$pos);

++++++++}

++++++++$raw_header+=+fread($fp,+4);
++++++++$data+=+unpack('Vdatasize',+$raw_header);
++++++++$sec+=+$data[datasize]+/+$header[bytespersec];
++++++++$minutes+=+intval(($sec+/+60)+%25+60);
++++++++$seconds+=+intval($sec+%25+60);

++++++++return+str_pad($minutes,+2,+"0",+STR_PAD_LEFT)+.+":"+.+str_pad($seconds,+2,+"0",+STR_PAD_LEFT);

++++}

}

$file+=+'1.wav';+//Enter+File+wav
calculateWavDuration($file);|code-block|syntax|javascript|4032174|entityMap^0|7|3|B|3|15|3|1G|2|1W|9|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|L|$]]

As earlier, I provided a solution for both mp3 and WAV files, Now this solution is specifically for the only WAV file with more precision but with longer evaluation time than the earlier solution.

<pre><code>function calculateWavDuration( $file ) {

 $fp = fopen($file, 'r');

 if (fread($fp, 4) == "RIFF") {

 fseek($fp, 20);
 $raw_header = fread($fp, 16);
 $header = unpack('vtype/vchannels/Vsamplerate/Vbytespersec/valignment/vbits', $raw_header);
 $pos = ftell($fp);

 while (fread($fp, 4) != "data" &amp;&amp; !feof($fp)) {

 $pos++;
 fseek($fp, $pos);

 }

 $raw_header = fread($fp, 4);
 $data = unpack('Vdatasize', $raw_header);
 $sec = $data[datasize] / $header[bytespersec];
 $minutes = intval(($sec / 60) % 60);
 $seconds = intval($sec % 60);

 return str_pad($minutes, 2, "0", STR_PAD_LEFT) . ":" . str_pad($seconds, 2, "0", STR_PAD_LEFT);

 }

}

$file = '1.wav'; //Enter File wav
calculateWavDuration($file);
</code></pre>

blocks|key|2397591|text|如果您安装了FFMpeg，使用FFProbe获取持续时间非常简单|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2397592|$filepath+=+'example.mp3';
$ffprobe+=+\FFMpeg\FFProbe::create();
$duration+=+$ffprobe->format($filepath)->get('duration');

echo+gmdate('H:i:s',+$duration);|code-block|syntax|javascript|2397593|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you have FFMpeg installed, getting the duration is quite simple with FFProbe

<pre><code>$filepath = 'example.mp3';
$ffprobe = \FFMpeg\FFProbe::create();
$duration = $ffprobe-&gt;format($filepath)-&gt;get('duration');

echo gmdate('H:i:s', $duration);
</code></pre>

Is there any PHP function that will give me the MP3 duration. I looked at ID 3 function but i don't see any thing there for duration and apart from this,id3 is some kind of tag,which will not be there in all MP3 so using this will not make any sense.

PHP Function to get MP3 duration

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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有没有什么PHP函数可以给我MP3的持续时间。我查看了id3函数，但我没有看到任何关于持续时间的东西，除此之外，id3是一种标记，它不会出现在所有的MP3中，所以使用它没有任何意义。

问获取MP3持续时间的函数
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