--- /dev/null
+--TEST--
+Test fseek(), ftell() & rewind() functions : usage variations - all w and x modes, default whence
+--SKIPIF--
+<?php
+if( substr(PHP_OS, 0, 3) != "WIN" )
+ die("skip.. only valid for Windows");
+?>
+--FILE--
+<?php
+/* Prototype: int fseek ( resource $handle, int $offset [, int $whence] );
+ Description: Seeks on a file pointer
+
+ Prototype: bool rewind ( resource $handle );
+ Description: Rewind the position of a file pointer
+
+ Prototype: int ftell ( resource $handle );
+ Description: Tells file pointer read/write position
+*/
+
+// include the file.inc for common functions for test
+include ("file.inc");
+
+/* Testing fseek(),ftell(),rewind() functions
+ 1. All write and create with write modes
+ 2. Testing fseek() without using argument whence
+*/
+
+echo "*** Testing fseek(), ftell(), rewind() : default whence & all w and x modes ***\n";
+$file_modes = array( "w","wb","wt","w+","w+b","w+t",
+ "x","xb","xt","x+","x+b","x+t");
+$file_content_types = array( "text_with_new_line","alphanumeric");
+
+$offset = array(-1, 0, 1, 513); // different offsets, including negative and beyond size
+
+$filename = dirname(__FILE__)."/fseek_ftell_rewind_variation2.tmp"; // this is name of the file created by create_files()
+
+/* open the file using $files_modes and perform fseek(),ftell() and rewind() on it */
+foreach($file_content_types as $file_content_type){
+ echo "\n-- File having data of type ". $file_content_type ." --\n";
+
+ foreach($file_modes as $file_mode) {
+ echo "-- File opened in mode ".$file_mode." --\n";
+ $file_handle = fopen($filename, $file_mode);
+ if (!$file_handle){
+ echo "Error: failed to fopen() file: $filename!";
+ exit();
+ }
+ $data_to_be_written="";
+ fill_buffer($data_to_be_written, $file_content_type, 512); //get the data of size 512
+ $data_to_be_written = $data_to_be_written;
+ fwrite($file_handle,(binary)$data_to_be_written);
+ rewind($file_handle);
+
+ echo "-- Testing fseek() without using argument whence --\n";
+ foreach($offset as $count){
+ var_dump( fseek($file_handle,$count) );
+ var_dump( ftell($file_handle) ); // confirm the file pointer position
+ var_dump( feof($file_handle) ); //ensure that file pointer is not at end
+ } //end of offset loop
+
+ //close the file and check the size
+ fclose($file_handle);
+ var_dump( filesize($filename) );
+
+ delete_file($filename); // delete file with name
+ } //end of file_mode loop
+} //end of file_content_types loop
+
+echo "Done\n";
+?>
+--EXPECTF--
+*** Testing fseek(), ftell(), rewind() : default whence & all w and x modes ***
+
+-- File having data of type text_with_new_line --
+-- File opened in mode w --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode wb --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode wt --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(569)
+-- File opened in mode w+ --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+b --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+t --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(569)
+-- File opened in mode x --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode xb --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode xt --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(569)
+-- File opened in mode x+ --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+b --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+t --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(569)
+
+-- File having data of type alphanumeric --
+-- File opened in mode w --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode wb --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode wt --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+ --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+b --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+t --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode xb --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode xt --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+ --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+b --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+t --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+Done
+--UEXPECTF--
+*** Testing fseek(), ftell(), rewind() : default whence & all w and x modes ***
+
+-- File having data of type text_with_new_line --
+-- File opened in mode w --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode wb --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode wt --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(569)
+-- File opened in mode w+ --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+b --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+t --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(569)
+-- File opened in mode x --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode xb --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode xt --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(569)
+-- File opened in mode x+ --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+b --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+t --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(569)
+
+-- File having data of type alphanumeric --
+-- File opened in mode w --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode wb --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode wt --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+ --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+b --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode w+t --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode xb --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode xt --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+ --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+b --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+-- File opened in mode x+t --
+-- Testing fseek() without using argument whence --
+int(-1)
+int(0)
+bool(false)
+int(0)
+int(0)
+bool(false)
+int(0)
+int(1)
+bool(false)
+int(0)
+int(513)
+bool(false)
+int(512)
+Done
\ No newline at end of file