ILIAS  release_5-4 Revision v5.4.26-12-gabc799a52e6
getID3_cached_mysql Class Reference

getID3() by James Heinrich info@.nosp@m.geti.nosp@m.d3.or.nosp@m.g // More...

+ Inheritance diagram for getID3_cached_mysql:
+ Collaboration diagram for getID3_cached_mysql:

Public Member Functions

 __construct ($host, $database, $username, $password, $table='getid3_cache')
 
 clear_cache ()
 
 analyze ($filename, $filesize=null, $original_filename='')
 
- Public Member Functions inherited from getID3
 __construct ()
 
 version ()
 
 fread_buffer_size ()
 
 setOption ($optArray)
 
 openfile ($filename, $filesize=null)
 
 analyze ($filename, $filesize=null, $original_filename='')
 
 error ($message)
 
 warning ($message)
 
 GetFileFormatArray ()
 
 GetFileFormat (&$filedata, $filename='')
 
 CharConvert (&$array, $encoding)
 
 HandleAllTags ()
 
 getHashdata ($algorithm)
 
 ChannelsBitratePlaytimeCalculations ()
 
 CalculateCompressionRatioVideo ()
 
 CalculateCompressionRatioAudio ()
 
 CalculateReplayGain ()
 
 ProcessAudioStreams ()
 
 getid3_tempnam ()
 
 include_module ($name)
 

Private Member Functions

 create_table ($drop=false)
 

Private Attributes

 $cursor
 
 $connection
 

Additional Inherited Members

- Data Fields inherited from getID3
 $encoding = 'UTF-8'
 
 $encoding_id3v1 = 'ISO-8859-1'
 
 $option_tag_id3v1 = true
 
 $option_tag_id3v2 = true
 
 $option_tag_lyrics3 = true
 
 $option_tag_apetag = true
 
 $option_tags_process = true
 
 $option_tags_html = true
 
 $option_extra_info = true
 
 $option_save_attachments = true
 
 $option_md5_data = false
 
 $option_md5_data_source = false
 
 $option_sha1_data = false
 
 $option_max_2gb_check = null
 
 $option_fread_buffer_size = 32768
 
 $filename
 
 $fp
 
 $info
 
 $tempdir = GETID3_TEMP_DIR
 
 $memory_limit = 0
 
const VERSION = '1.9.14-201703261440'
 
const FREAD_BUFFER_SIZE = 32768
 
const ATTACHMENTS_NONE = false
 
const ATTACHMENTS_INLINE = true
 
- Protected Attributes inherited from getID3
 $startup_error = ''
 
 $startup_warning = ''
 

Detailed Description

getID3() by James Heinrich info@.nosp@m.geti.nosp@m.d3.or.nosp@m.g //

This is a caching extension for getID3(). It works the exact same way as the getID3 class, but return cached information very fast

Example: (see also demo.cache.mysql.php in /demo/)

Normal getID3 usage (example):

require_once 'getid3/getid3.php'; $getID3 = new getID3; $getID3->encoding = 'UTF-8'; $info1 = $getID3->analyze('file1.flac'); $info2 = $getID3->analyze('file2.wv');

getID3_cached usage:

require_once 'getid3/getid3.php'; require_once 'getid3/getid3/extension.cache.mysql.php'; // 5th parameter (tablename) is optional, default is 'getid3_cache' $getID3 = new getID3_cached_mysql('localhost', 'database', 'username', 'password', 'tablename'); $getID3->encoding = 'UTF-8'; $info1 = $getID3->analyze('file1.flac'); $info2 = $getID3->analyze('file2.wv');

Supported Cache Types (this extension)

SQL Databases:

cache_type cache_options

mysql host, database, username, password

DBM-Style Databases: (use extension.cache.dbm)

cache_type cache_options

gdbm dbm_filename, lock_filename ndbm dbm_filename, lock_filename db2 dbm_filename, lock_filename db3 dbm_filename, lock_filename db4 dbm_filename, lock_filename (PHP5 required)

PHP must have write access to both dbm_filename and lock_filename.

Recommended Cache Types

Infrequent updates, many reads any DBM Frequent updates mysql

Definition at line 74 of file extension.cache.mysql.php.

Constructor & Destructor Documentation

◆ __construct()

getID3_cached_mysql::__construct (   $host,
  $database,
  $username,
  $password,
  $table = 'getid3_cache' 
)

Definition at line 83 of file extension.cache.mysql.php.

References $password, $table, $version, create_table(), and getID3\VERSION.

83  {
84 
85  // Check for mysql support
86  if (!function_exists('mysql_pconnect')) {
87  throw new Exception('PHP not compiled with mysql support.');
88  }
89 
90  // Connect to database
91  $this->connection = mysql_pconnect($host, $username, $password);
92  if (!$this->connection) {
93  throw new Exception('mysql_pconnect() failed - check permissions and spelling.');
94  }
95 
96  // Select database
97  if (!mysql_select_db($database, $this->connection)) {
98  throw new Exception('Cannot use database '.$database);
99  }
100 
101  // Set table
102  $this->table = $table;
103 
104  // Create cache table if not exists
105  $this->create_table();
106 
107  // Check version number and clear cache if changed
108  $version = '';
109  $SQLquery = 'SELECT `value`';
110  $SQLquery .= ' FROM `'.mysql_real_escape_string($this->table).'`';
111  $SQLquery .= ' WHERE (`filename` = \''.mysql_real_escape_string(getID3::VERSION).'\')';
112  $SQLquery .= ' AND (`filesize` = -1)';
113  $SQLquery .= ' AND (`filetime` = -1)';
114  $SQLquery .= ' AND (`analyzetime` = -1)';
115  if ($this->cursor = mysql_query($SQLquery, $this->connection)) {
116  list($version) = mysql_fetch_array($this->cursor);
117  }
118  if ($version != getID3::VERSION) {
119  $this->clear_cache();
120  }
121 
122  parent::__construct();
123  }
const VERSION
Definition: getid3.php:115
$version
Definition: build.php:27
$password
Definition: cron.php:14
if(empty($password)) $table
Definition: pwgen.php:24
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Member Function Documentation

◆ analyze()

getID3_cached_mysql::analyze (   $filename,
  $filesize = null,
  $original_filename = '' 
)

Definition at line 137 of file extension.cache.mysql.php.

137  {
138 
139  if (file_exists($filename)) {
140 
141  // Short-hands
142  $filetime = filemtime($filename);
143  $filesize = filesize($filename);
144 
145  // Lookup file
146  $SQLquery = 'SELECT `value`';
147  $SQLquery .= ' FROM `'.mysql_real_escape_string($this->table).'`';
148  $SQLquery .= ' WHERE (`filename` = \''.mysql_real_escape_string($filename).'\')';
149  $SQLquery .= ' AND (`filesize` = \''.mysql_real_escape_string($filesize).'\')';
150  $SQLquery .= ' AND (`filetime` = \''.mysql_real_escape_string($filetime).'\')';
151  $this->cursor = mysql_query($SQLquery, $this->connection);
152  if (mysql_num_rows($this->cursor) > 0) {
153  // Hit
154  list($result) = mysql_fetch_array($this->cursor);
155  return unserialize(base64_decode($result));
156  }
157  }
158 
159  // Miss
160  $analysis = parent::analyze($filename, $filesize, $original_filename);
161 
162  // Save result
163  if (file_exists($filename)) {
164  $SQLquery = 'INSERT INTO `'.mysql_real_escape_string($this->table).'` (`filename`, `filesize`, `filetime`, `analyzetime`, `value`) VALUES (';
165  $SQLquery .= '\''.mysql_real_escape_string($filename).'\'';
166  $SQLquery .= ', \''.mysql_real_escape_string($filesize).'\'';
167  $SQLquery .= ', \''.mysql_real_escape_string($filetime).'\'';
168  $SQLquery .= ', \''.mysql_real_escape_string(time() ).'\'';
169  $SQLquery .= ', \''.mysql_real_escape_string(base64_encode(serialize($analysis))).'\')';
170  $this->cursor = mysql_query($SQLquery, $this->connection);
171  }
172  return $analysis;
173  }
$filename
Definition: getid3.php:105

◆ clear_cache()

getID3_cached_mysql::clear_cache ( )

Definition at line 128 of file extension.cache.mysql.php.

128  {
129 
130  $this->cursor = mysql_query('DELETE FROM `'.mysql_real_escape_string($this->table).'`', $this->connection);
131  $this->cursor = mysql_query('INSERT INTO `'.mysql_real_escape_string($this->table).'` VALUES (\''.getID3::VERSION.'\', -1, -1, -1, \''.getID3::VERSION.'\')', $this->connection);
132  }
const VERSION
Definition: getid3.php:115

◆ create_table()

getID3_cached_mysql::create_table (   $drop = false)
private

Definition at line 178 of file extension.cache.mysql.php.

Referenced by __construct().

178  {
179 
180  $SQLquery = 'CREATE TABLE IF NOT EXISTS `'.mysql_real_escape_string($this->table).'` (';
181  $SQLquery .= '`filename` VARCHAR(990) NOT NULL DEFAULT \'\'';
182  $SQLquery .= ', `filesize` INT(11) NOT NULL DEFAULT \'0\'';
183  $SQLquery .= ', `filetime` INT(11) NOT NULL DEFAULT \'0\'';
184  $SQLquery .= ', `analyzetime` INT(11) NOT NULL DEFAULT \'0\'';
185  $SQLquery .= ', `value` LONGTEXT NOT NULL';
186  $SQLquery .= ', PRIMARY KEY (`filename`, `filesize`, `filetime`)) ENGINE=MyISAM CHARACTER SET=latin1 COLLATE=latin1_general_ci';
187  $this->cursor = mysql_query($SQLquery, $this->connection);
188  echo mysql_error($this->connection);
189  }
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Field Documentation

◆ $connection

getID3_cached_mysql::$connection
private

Definition at line 79 of file extension.cache.mysql.php.

◆ $cursor

getID3_cached_mysql::$cursor
private

Definition at line 78 of file extension.cache.mysql.php.


The documentation for this class was generated from the following file: