<?php // example 01 : simple open and close
echo "<b>EXAMPLE 05</b>: we read some fields in the BITMAP (.BMP) header<br><br>" ;
require_once( "cfile.class.php" );
$CANDIDATEfile = "andromeda.bmp" ;
$cfile = new cfile( $CANDIDATEfile );
$bOPEN = $cfile->open( CFILE_READ_MODE );
$bERR = $cfile->is_error() ;
if ( $bOPEN && !$bERR ) // you can check open return value or internal error for safe operation
{
echo "OPEN FILE <b>$CANDIDATEfile</b> : SUCCESS<br>" ;
echo "FILE SIZE : ".( filesize( $CANDIDATEfile ) )." bytes<br>" ;
$bBEGIN = $cfile->move_to_beginning();
echo ( $bBEGIN ) ? "OK MOVE TO BEGINNING ...<br>" : "CAN'T MOVE TO THE BEGINNING ...<br>" ;
echo "<br>READING <b>BITMAP FILE HEADER</b><br>" ;
$nbytes = 2 ; // BM MARKER
$READ = $cfile->read( $nbytes, CFILE_TEXT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "BITMAP MARKER ($nbytes):<b>$READ</b><br>" ;
$nbytes = 4 ; // SIZE OF BITMAP
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "SIZE OF BITMAP ($nbytes):<b>$READ</b><br>" ;
$nbytes = 2 ; // RESERVED (0)
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "RESERVED ($nbytes):<b>$READ</b><br>" ;
$nbytes = 2 ; // RESERVED (1)
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "RESERVED ($nbytes):<b>$READ</b><br>" ;
$nbytes = 4 ; // OFFSET BITS TO BITMAP DATA
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "OFFSET BITS TO BITMAP DATA ($nbytes):<b>$READ</b><br>" ;
echo "<br>READING <b>BITMAP INFO HEADER</b><br>" ;
$nbytes = 4 ; // size of the BITMAPINFOHEADER structure, in bytes
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "size of the BITMAPINFOHEADER structure, in bytes ($nbytes):<b>$READ</b><br>" ;
$nbytes = 4 ; // WIDTH
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "IMAGE WIDTH ($nbytes):<b>$READ</b><br>" ;
$nbytes = 4 ; // HEIGHT
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "IMAGE HEIGHT ($nbytes):<b>$READ</b><br>" ;
$nbytes = 2 ; // PLANES
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "PLANES ($nbytes):<b>$READ</b><br>" ;
$nbytes = 2 ; // BITS per PIXEL
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "BITS per PIXEL ($nbytes):<b>$READ</b><br>" ;
$nbytes = 4 ; // COMPRESSION
$READ = $cfile->read( $nbytes, CFILE_BINARY_INT_MODE ) ;
echo ( $READ === false ) ? "CAN'T READ from file ... <b>".$cfile->get_error_string()."</b><br>" : "COMPRESSION ($nbytes):<b>$READ</b><br>" ;
echo "<br>" ;
echo ( $cfile->close() ) ? "CLOSE FILE <b>$CANDIDATEfile</b> : SUCCESS" : $cfile->get_error_string() ;
}
else echo $cfile->get_error_string() ;
?>
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