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<?php |
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namespace Imparse; |
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class Parser |
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{ |
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private $iptclabels = [ |
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'1#000' => 'Model Version', |
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'1#005' => 'Destination', |
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'1#020' => 'File Format', |
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'1#022' => 'File Format Version', |
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'1#030' => 'Service Identifier', |
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'1#040' => 'Envelope Number', |
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'1#050' => 'Product I.D.', |
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'1#060' => 'Envelope Priority', |
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'1#070' => 'Date Sent', |
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'1#080' => 'Time Sent', |
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'1#090' => 'Coded Character Set', |
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'1#100' => 'UNO', |
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'1#120' => 'ARM Identifier', |
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'1#122' => 'ARM Version', |
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'2#000' => 'Record Version', |
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'2#003' => 'Object Type Reference', |
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'2#004' => 'Object Attribute Reference', |
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'2#005' => 'Object Name', |
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'2#007' => 'Edit Status', |
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'2#008' => 'EditorialUpdate', |
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'2#010' => 'Urgency', |
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'2#012' => 'Subject Reference', |
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'2#015' => 'Category', |
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'2#020' => 'Supplemental Category', |
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'2#022' => 'Fixture Identifier', |
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'2#025' => 'Keywords', |
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'2#026' => 'Content Location Code', |
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'2#027' => 'Content Location Name', |
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'2#030' => 'Release Date', |
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'2#035' => 'Release Time', |
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'2#037' => 'ExpirationDate', |
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'2#038' => 'Expiration Time', |
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'2#040' => 'Special Instructions', |
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'2#042' => 'Action Advised', |
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'2#045' => 'Reference Service', |
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'2#047' => 'Reference Date', |
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'2#050' => 'Reference Number', |
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'2#055' => 'Date Created', |
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'2#060' => 'Time Created', |
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'2#062' => 'Digital Creation Date', |
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'2#063' => 'Digital Creation Time', |
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'2#065' => 'Originating Program', |
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'2#070' => 'Program Version', |
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'2#075' => 'Object Cycle', |
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'2#080' => 'By-line', |
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'2#085' => 'By-line Title', |
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'2#090' => 'City', |
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'2#092' => 'Sublocation', |
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'2#095' => 'Province/State', |
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'2#100' => 'Country/Primary Location Code', |
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'2#101' => 'Country/Primary Location Name', |
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'2#103' => 'Original Transmission Reference', |
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'2#105' => 'Headline', |
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'2#110' => 'Credit', |
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'2#115' => 'Source', |
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'2#116' => 'Copyright Notice', |
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'2#118' => 'Contact', |
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'2#120' => 'Caption/Abstract', |
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'2#122' => 'Writer/Editor', |
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'2#125' => 'Rasterized Caption', |
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'2#130' => 'Image Type', |
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'2#131' => 'Image Orientation', |
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'2#135' => 'Language Identifier', |
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'2#150' => 'Audio Type', |
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'2#151' => 'Audio SamplingRate', |
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'2#152' => 'Audio Sampling Resolution', |
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'2#153' => 'Audio Duration', |
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'2#154' => 'Audio Outcue', |
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'2#200' => 'ObjectData Preview File Format', |
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'2#201' => 'ObjectData Preview File Format Version', |
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'2#202' => 'ObjectData Preview Data' |
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]; |
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private $metadata = array( |
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'exif' => null, |
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'iptc' => null, |
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'xmp' => null |
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); |
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private $resource; |
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private $file_pointer; |
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3 |
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public function __construct($resource) |
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{ |
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$this->resource = $resource; |
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} |
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public function readExif() |
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{ |
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$this->metadata['exif'] = exif_read_data($this->resource); |
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} |
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public function readIptc() |
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{ |
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getimagesize($this->resource, $info); |
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1 |
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if (isset($info['APP13'])) { |
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$iptc = iptcparse($info['APP13']); |
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$map = $this->iptclabels; |
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if ($iptc) { |
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$data = []; |
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1 |
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foreach ($iptc as $key => $value) { |
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$data[$map[$key]] = $value; |
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} |
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$this->metadata['iptc'] = $data; |
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} |
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} |
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} |
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public function readXmp() |
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{ |
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$xml = $this->readXmpData(); |
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if ($xml !== null) { |
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$xml = (new \DOMDocument())->loadXML($xml); |
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} |
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$this->metadata['xmp'] = $xml; |
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} |
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private function readXmpData($chunk_size = 1024) |
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{ |
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if ($this->file_pointer === null) { |
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$this->file_pointer = fopen($this->resource, 'r'); |
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} |
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$buffer = $this->extractXmpChunk($chunk_size); |
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fclose($this->file_pointer); |
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return $buffer; |
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} |
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private function extractXmpChunk($chunk_size) |
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{ |
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$buffer = null; |
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do { |
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$chunk = fread($this->file_pointer, $chunk_size); |
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$eof = feof($this->file_pointer); |
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$posStart = strpos($chunk, '<x:xmpmeta'); |
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if ($buffer !== null) { |
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$buffer += $chunk; |
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} else if ($posStart !== false) { |
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$buffer = substr($chunk, $posStart); |
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} |
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$posEnd = strpos($buffer, '</x:xmpmeta>'); |
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if ($posEnd) { |
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$buffer = substr($buffer, 0, $posEnd + 12); |
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} |
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} while (!$eof); |
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return $buffer; |
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} |
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public function getMetaData() |
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{ |
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return $this->metadata; |
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} |
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} |
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fpietka /
imparse
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.