public function endChunk() 
    {
        // Compute Crc32 for type + data
        $data = $this->buffer;
        $crc = crc32($data);

        $this->buffer = 
            $this->chunkPreviousBuffer .
            
            // Length
            pack('N', strlen($data) - 4) .

            // Content 
            $data .

            // Crc32
            pack('N', $crc);
    }
public function endChunk() 
    {
        // Compute Crc32 for type + data
        $data = $this->buffer;
        $crc = crc32($data);

        $this->buffer = 
            $this->chunkPreviousBuffer .
            
            // Length
            pack('N', strlen($data) - 4) .

            // Content 
            $data .

            // Crc32
            pack('N', $crc);
    }
public function endChunk ( ) { // Compute Crc32 for type + data $ data = $ this -> buffer ; $ crc = crc32 ( $ data ) ; $ this -> buffer = $ this -> chunkPreviousBuffer . // Length pack ( 'N' , strlen ( $ data ) - 4 ) . // Content  $ data . // Crc32 pack ( 'N' , $ crc ) ; }
Closes the current PNG chunk.
Closes the current PNG chunk .