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  Classes of zandor  >  CFile  >  example10.php  >  Download  
File: example10.php
Role: Example script
Content type: text/plain
Description: writing & reading an input array into a file
Class: CFile
Read and write values to binary files
Author: By
Last change:
Date: 2011-08-17 06:33
Size: 2,651 bytes
 

Contents

Class file image Download
<?php // example 01 : simple open and close
      require_once( "cfile.class.php" );
      
      echo "<b>EXAMPLE 10</b>: writing & reading an input array into a file<br><br>" ;
      
      $CANDIDATEfile = "example.10.txt" ;

      $cfile = new cfile( $CANDIDATEfile, CFILE_BIG_ENDIAN );
      $bOPEN = $cfile->open( CFILE_READWRITE_CREATE_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>" ;
           
           // assume such a syntax
           // left : cast the type (default value: string)
           // separator '@'
           // right : bytes number (default value: the one associated to the casted type)
           
           $array = array( array( "STRING" => "HEADER" ),
                           array( "DOUBLE" => 12.23 ),
                           array( "INT" => 24 )
                         );

           $cfile->write_array( $array );

           echo "<pre>" ;
           print_r( $array );
           echo "</pre>" ;

           echo ( $cfile->close() ) ? "CLOSE FILE <b>$CANDIDATEfile</b> : SUCCESS" : $cfile->get_error_string() ;
      }
      
      $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 "<br>OPEN FILE <b>$CANDIDATEfile</b> : SUCCESS<br>" ;
           
           // anyway we shall declare the bytes number for reading a string
           // trying deleting the bytes number in the 'string' field and then see what happens

           $array = array( array( "STRING@1" => "" ),
                           array( "STRING@1" => "" ),
                           array( "STRING@1" => "" ),
                           array( "STRING@1" => "" ),
                           array( "STRING@1" => "" ),
                           array( "STRING@1" => "" ),
                           array( "DOUBLE" => 0 ),
                           array( "INT" => 0 )
                         );

           $cfile->move_to_beginning() ;

           $bREAD = $cfile->read_array( $array );

           if ( $bREAD )
           {
               echo "<pre>" ;
               print_r( $array );
               echo "</pre>" ;
           }

           echo "<br>" ;
           echo ( $cfile->close() ) ? "CLOSE FILE <b>$CANDIDATEfile</b> : SUCCESS" : $cfile->get_error_string() ;
      }
      else echo $cfile->get_error_string() ;
?>