hphp/test/zend/bad/ext-standard-file/fscanf_variation55.php

   1 <?php
   2
   3 /*
   4   Prototype: mixed fscanf ( resource $handle, string $format [, mixed &$...] );
   5   Description: Parses input from a file according to a format
   6 */
   7
   8 /*
   9   Test fscanf() to scan data using different format types and also
  10   tracking the file pointer movement along with reading
  11  */
  12
  13 $file_path = dirname(__FILE__);
  14
  15 echo "*** Test fscanf(): tracking file pointer along with reading data from file ***\n";
  16
  17 // create a file
  18 $filename = "$file_path/fscanf_variation55.tmp";
  19 $file_handle = fopen($filename, "w");
  20 if($file_handle == false)
  21   exit("Error:failed to open file $filename");
  22
  23 // different valid data
  24 $valid_data = array(
  25   12345,            // integer value
  26   -12345,
  27   123.45,           // float value
  28   -123.45,
  29   0x123B,           // hexadecimal value
  30   0x12ab,
  31   0123,             // octal value
  32   -0123,
  33   "abcde",          // string
  34   'abcde',
  35   10e3,             // exponential value
  36   10e-3
  37 );
  38 // various formats
  39 $int_formats = array( "%d", "%f", "%s", "%o", "%x", "%u", "%c", "%e");
  40
  41 $counter = 1;
  42
  43 // writing to the file
  44 foreach($valid_data as $data) {
  45   @fprintf($file_handle, $data);
  46   @fprintf($file_handle, "\n");
  47 }
  48 // closing the file
  49 fclose($file_handle);
  50
  51 $modes = array("r", "rb", "rt");
  52
  53 foreach($modes as $mode) {
  54
  55   echo "\n*** File opened in $mode mode ***\n";
  56   // opening the file for reading
  57   $file_handle = fopen($filename, $mode);
  58   if($file_handle == false) {
  59     exit("Error:failed to open file $filename");
  60   }
  61
  62   $counter = 1;
  63   // reading different data from file using different formats
  64   foreach($int_formats as $int_format) {
  65     // current file pointer position
  66     var_dump( ftell($file_handle) );
  67     // rewind the file so that for every foreach iteration the file pointer starts from bof
  68     rewind($file_handle);
  69     // current file pointer position after rewind operation
  70     var_dump( ftell($file_handle) );
  71     echo "\n-- iteration $counter --\n";
  72     while( !feof($file_handle) ) {
  73       var_dump( ftell($file_handle) );
  74       var_dump( fscanf($file_handle,$int_format) );
  75     }
  76     $counter++;
  77   } // end of inner for loop
  78 } // end of outer for loop
  79
  80 echo "\n*** Done ***";
  81 ?><?php
  82 $file_path = dirname(__FILE__);
  83 $filename = "$file_path/fscanf_variation55.tmp";
  84 unlink($filename);
  85 ?>