hphp/test/zend/bad/ext-standard-file/ftruncate_variation6.php

   1 <?php
   2 /*
   3  Prototype: bool ftruncate ( resource $handle, int $size );
   4  Description: Truncates a file to a given length
   5 */
   6
   7 /* truncate the file to smaller size and display the content */
   8
   9 // include common file related test functions
  10 include ("file.inc");
  11
  12 echo "*** Testing ftruncate() : usage variations ***\n";
  13
  14 /* test ftruncate with file opened in different modes */
  15 $file_modes = array("r", "rb", "rt", "r+", "r+b", "r+t",
  16                     "w", "wb", "wt", "w+", "w+b", "w+t",
  17                     "x", "xb", "xt", "x+", "x+b", "x+t",
  18                     "a", "ab", "at", "a+", "a+b", "a+t");
  19
  20 $file_content_types = array("numeric","text_with_new_line");
  21
  22 foreach($file_content_types as $file_content_type) {
  23  echo "\n-- Testing ftruncate() with file having data of type ". $file_content_type ." --\n";
  24
  25  for($mode_counter = 0; $mode_counter < count($file_modes); $mode_counter++) {
  26   echo "-- Testing ftruncate() with file opening using $file_modes[$mode_counter] mode --\n";
  27
  28    // create 1 file with some contents
  29    $filename = dirname(__FILE__)."/ftruncate_variation6.tmp";
  30    if( strstr($file_modes[$mode_counter], "x") || strstr($file_modes[$mode_counter], "w") ) {
  31      // fopen the file using the $file_modes
  32      $file_handle = fopen($filename, $file_modes[$mode_counter]);
  33      fill_file($file_handle, $file_content_type, 1024);
  34    } else {
  35      create_files ( dirname(__FILE__), 1, $file_content_type, 0755, 1, "w", "ftruncate_variation", 6);
  36      // fopen the file using the $file_modes
  37      $file_handle = fopen($filename, $file_modes[$mode_counter]);
  38    }
  39    if (!$file_handle) {
  40      echo "Error: failed to open file $filename!\n";
  41      exit();
  42    }
  43
  44    rewind($file_handle); // file pointer to 0
  45
  46    echo "-- Testing ftruncate(): truncate to smaller size and display the file content --\n";
  47    /* try to truncate it and display the file content */
  48
  49    $new_size = 15;
  50    var_dump( filesize($filename) );  // current filesize
  51    var_dump( ftell($file_handle) );
  52    if(ftruncate($file_handle, $new_size) ){// truncate it
  53      echo "File content after truncating file to $new_size size : ";
  54      var_dump( file_get_contents($filename) );
  55    }
  56    var_dump( ftell($file_handle) );
  57    var_dump( feof($file_handle) );
  58    fclose($file_handle);
  59    clearstatcache(); // clear previous size value in cache
  60    var_dump( filesize($filename) );
  61
  62    //delete all files created
  63    delete_file( $filename );
  64  }//end of inner for loop
  65 }//end of outer foreach loop
  66 echo "Done\n";
  67 ?>