1--TEST--
2Test fflush() function: usage variations - file opened in read-only mode
3--FILE--
4<?php
5
6/* test fflush() with handle to a file opened in read-only mode as resource */
7
8$file_path = __DIR__;
9require $file_path.'/file.inc';
10
11echo "*** Testing fflush(): with file handles of files opened in various read modes ***\n";
12$file_modes = array("r", "rb", "rt");
13
14$file_name = "$file_path/fflush_variation4.tmp";
15
16$count = 1;
17
18foreach( $file_modes as $mode ) {
19  echo "-- Iteration $count with file opened in $mode mode --\n";
20
21  // creating a file
22  $file_handle = fopen($file_name, "w");
23  if($file_handle == false)
24    exit("Error:failed to open file $file_name");
25  fclose($file_handle);
26
27  // opening the file in different read modes
28  $file_handle = fopen($file_name, $mode);
29  if($file_handle == false)
30    exit("Error:failed to open file $file_name");
31  var_dump( fflush($file_handle) );
32  fclose($file_handle);
33
34  unlink($file_name);
35  $count++;
36}
37
38echo "\n*** Done ***";
39?>
40--EXPECT--
41*** Testing fflush(): with file handles of files opened in various read modes ***
42-- Iteration 1 with file opened in r mode --
43bool(true)
44-- Iteration 2 with file opened in rb mode --
45bool(true)
46-- Iteration 3 with file opened in rt mode --
47bool(true)
48
49*** Done ***
50