Class: MP3_Id

Source Location: /MP3_Id-1.2.0/Id.php

Class Overview

A Class for reading/writing MP3 ID3 tags

Author(s):

Sandy McArthur Jr. <Leknor at Leknor.com>

Version:

$Version$

Inherited Variables

Inherited Methods

Class Details

[line 84]
A Class for reading/writing MP3 ID3 tags

Note: This code doesn't try to deal with corrupt mp3s. So if you get incorrect length times or something else it may be your mp3. To fix just re-enocde from the CD. :~)

eg: require_once("MP3/Id.php"); $file = "Some Song.mp3";

$id3 = &new MP3_Id(); $id3->read($file); print_r($id3);

echo $id3->getTag('artists');

$id3->comment = "Be gentle with that file."; $id3->write(); $id3->read($file); print_r($id3 );

Author: Sandy McArthur Jr. <Leknor@Leknor.com>
Version: $Version$

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Class Variables

$album = ''

[line 122]

album

Type:

string

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$artists = ''

[line 117]

artists

Type:

string

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$bitrate = 0

[line 170]

version of bitrate

Type:

integer

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$comment = ''

[line 132]

comment

Type:

string

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$copyright = false

[line 230]

Copyrighted

Type:

string

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$crc = false

[line 175]

Frames are crc protected?

Type:

boolean

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$debug = false

[line 277]

print debugging info?

Type:

boolean

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$debugbeg = '<DIV STYLE="margin: 0.5 em; padding: 0.5 em; border-width: thin; border-color: black; border-style: solid">'

[line 282]

print debugg

Type:

string

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$debugend = '</DIV>'

[line 287]

print debugg

Type:

string

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$emphasis = ''

[line 240]

Emphasis (also never used)

Type:

boolean

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$encoding_type = 0

[line 185]

encoding type (CBR or VBR)

Type:

string

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$error = false

[line 271]

if any errors they will be here

Type:

string

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$file = false

[line 90]

mp3/mpeg file name

Type:

boolean

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$filesize = -1

[line 245]

Bytes in file

Type:

integer

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$frameoffset = -1

[line 250]

Byte at which the first mpeg header was found

Type:

integer

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$frames = 0

[line 205]

number of MPEG audio frames

Type:

integer

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$frequency = 0

[line 180]

frequency

Type:

integer

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$genre = ''

[line 142]

genre name

Type:

string

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$genreno = 255

[line 147]

genre number

Type:

integer

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$id3v1 = false

[line 95]

ID3 v1 tag found? (also true if v1.1 found)

Type:

boolean

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$id3v2 = false

[line 105]

ID3 v2 tag found? (not used yet)

Type:

boolean

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$id3v11 = false

[line 100]

ID3 v1.1 tag found?

Type:

boolean

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$layer = 0

[line 165]

version of layer

Type:

integer

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$length = false

[line 260]

length of mp3 format mm:ss

Type:

string

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$lengthh = false

[line 255]

length of mp3 format hh:mm:ss

Type:

string

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$lengths = false

[line 265]

length of mp3 in seconds

Type:

string

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$mode = ''

[line 225]

Mode (Stero etc)

Type:

string

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$mpeg_ver = 0

[line 160]

version of mpeg

Type:

integer

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$musicsize = -1

[line 200]

Bytes in file without tag overhead

Type:

integer

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$name = ''

[line 112]

trackname

Type:

string

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$original = false

[line 235]

On Original Media? (never used)

Type:

boolean

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$padding = false

[line 215]

Frames padded

Type:

boolean

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$private = false

[line 220]

private bit set

Type:

boolean

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$quality = 0

[line 210]

quality indicator (0% - 100%)

Type:

integer

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$samples = 0

[line 195]

samples in file

Type:

integer

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$samples_per_frame = 0

[line 190]

number of samples per MPEG audio frame

Type:

integer

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$studied = false

[line 154]

Was the file studied to learn more info?

Type:

boolean

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$track = 0

[line 137]

track number

Type:

integer

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$year = ''

[line 127]

year

Type:

string

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Method Detail

MP3_Id (Constructor) [line 298]

MP3_Id MP3_Id(
[
$study = false])

Parameters:

$study —

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copy [line 398]

void copy(
string
$from)

copy($from) - set's the ID3 fields to the same as the fields in $from

Access: public

Parameters:

string $from — fields to copy

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genres [line 1021]

void genres(
)

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getGenre [line 969]

mixed getGenre(
integer
$genreno)

getGenre - return the name of a genre number

if no genre number is specified the genre number from $this->genreno will be used.

the genre is returned or false if an error or not found no error message is ever returned

Return: false, if no genre found, else string
Access: public

Parameters:

integer $genreno — Number of the genre

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getGenreNo [line 996]

void getGenreNo(

$genre, [
$default = 0xff])

Parameters:

	`$genre`	—
	`$default`	—

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getTag [line 357]

mixed getTag(
string
$name, [mixed
$default = 0])

get the value of a tag

Return: The value of the field
See: MP3_Id::setTag()
Access: public

Parameters:

string	`$name`	—	the name of the field to get
mixed	`$default`	—	returned if the field not exists

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read [line 311]

mixed read(
[string
$file = ""])

reads the given file and parse it

Return: PEAR_Error on error
Access: public

Parameters:

string $file — the name of the file to parse

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remove [line 419]

void remove(
[boolean
$id3v1 = true], [boolean
$id3v2 = true])

remove - removes the id3 tag(s) from a file.

Access: public

Parameters:

boolean	`$id3v1`	—	true to remove the tag
boolean	`$id3v2`	—	true to remove the tag (Not yet implemented)

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setTag [line 337]

void setTag(
mixed
$name, mixed
$value)

sets a field

possible names of tags are: artists - Name of band or artist album - Name of the album year - publishing year of the album or song comment - song comment track - the number of the track genre - genre of the song genreno - Number of the genre

Access: public

Parameters:

mixed	`$name`	—	Name of the tag to set or hash with the key as fieldname
mixed	`$value`	—	the value to set

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study [line 387]

void study(
)

study() - does extra work to get the MPEG frame info.

Access: public

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write [line 374]

void write(
[boolean
$v1 = true])

update the id3v1 tags on the file.

Note: If/when ID3v2 is implemented this method will probably get another parameters.

Access: public

Parameters:

boolean $v1 — if true update/create an id3v1 tag on the file. (defaults to true)

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