我在网上下载的wav的文件，可以读到信息。正确的是这样：
php端我是使用的getID3 处理看音频信息！

array:15 [ "GETID3_VERSION" => "1.9.14-201703261440" "filesize" => 18627884 "filepath" => "C:/Windows" "filename" => "php20E6.tmp" "filenamepath" => "C:/Windows/php20E6.tmp" "avdataoffset" => 44 "avdataend" => 18627884 "fileformat" => "wav" "audio" => array:12 [ "dataformat" => "wav" "bitrate_mode" => "cbr" "wformattag" => 1 "streams" => array:1 [ 0 => array:10 [ "codec" => "Pulse Code Modulation (PCM)" "channels" => 2 "sample_rate" => 44100 "bitrate" => 1411200 "bits_per_sample" => 16 "wformattag" => 1 "bitrate_mode" => "cbr" "lossless" => true "dataformat" => "wav" "compression_ratio" => 1 ] ] "codec" => "Pulse Code Modulation (PCM)" "channels" => 2 "sample_rate" => 44100 "bitrate" => 1411200 "bits_per_sample" => 16 "lossless" => true "channelmode" => "stereo" "compression_ratio" => 1 ] "encoding" => "UTF-8" "mime_type" => "audio/x-wav" "riff" => array:5 [ "raw" => array:1 [ "fmt " => array:6 [ "wFormatTag" => 1 "nChannels" => 2 "nSamplesPerSec" => 44100 "nAvgBytesPerSec" => 176400 "nBlockAlign" => 4 "wBitsPerSample" => 16 ] ] "audio" => array:1 [ 0 => array:5 [ "codec" => "Pulse Code Modulation (PCM)" "channels" => 2 "sample_rate" => 44100 "bitrate" => 1411200 "bits_per_sample" => 16 ] ] "header_size" => 18627876 "WAVE" => array:2 [ "fmt " => array:1 [ 0 => array:3 [ "offset" => 12 "size" => 16 "data" => b"\x01\x00\x02\x00D¬\x00\x00\x10±\x02\x00\x04\x00\x10\x00" ] ] "data" => array:1 [ 0 => array:2 [ "offset" => 36 "size" => 18627840 ] ] ] "encoding" => "ISO-8859-1" ] "playtime_seconds" => 105.6 "bitrate" => 1411200 "playtime_string" => "1:46" ]

读取ios自录的音频的时候，就出现了 下列问题，我读取不到音频的时长。

array:7 [ "GETID3_VERSION" => "1.9.14-201703261440" "filesize" => 115223 "filepath" => "C:/Windows" "filename" => "phpAA25.tmp" "filenamepath" => "C:/Windows/phpAA25.tmp" "encoding" => "UTF-8" "error" => array:1 [ 0 => "unable to determine file format" ] ]

谁遇到过这种问题啊，求指导啊！