symlink_link_linkinfo_is_link_variation4.phpt [plain text]
--TEST--
Test symlink(), linkinfo(), link() and is_link() functions : usage variations - access/update file through hard link
--SKIPIF--
<?php
if (substr(PHP_OS, 0, 3) == 'WIN') {
die('skip no symlinks on Windows');
}
?>
--FILE--
<?php
$file_path = dirname(__FILE__);
echo "*** Accessing and updating data of file through hard link ***\n";
$filename = "$file_path/symlink__link_linkinfo_is_link_variation4.tmp";
$file = fopen($filename, "w");
fwrite($file, str_repeat("text", 20) );
fclose($file);
echo "\n-- Access data of the file through the hard link --\n";
$linkname = "$file_path/symlink_link_linkinfo_is_link_link_variation4.tmp";
var_dump( link($filename, $linkname) );
$data_from_link = file_get_contents($linkname); var_dump( $data_from_link );
echo "\n-- Check size of hard link and file --\n";
if( filesize($filename) == filesize($linkname) )
echo "\nSize of file and hard link are same\n";
else
echo "\nWarning: Size of file and hard link differ\n";
echo "\n-- Updating file with data through hard link --\n";
$fp = fopen($linkname, "a"); fwrite($fp, "Hello World");
fclose($fp);
$data_from_file = file_get_contents($filename);
var_dump( $data_from_file );
echo "\n-- Check size of hard link and file --\n";
if( filesize($filename) == filesize($linkname) )
echo "\nSize of file and hard link are same\n";
else
echo "\nWarning: Size of file and hard link differ\n";
echo "\n-- Updating file with data and check data through hard link --\n";
$file = fopen($filename, "w");
fwrite($file, "Hello World");
fclose($file);
$data_from_link = file_get_contents($linkname);
var_dump( $data_from_link );
echo "\n-- Check size of hard link and file --\n";
var_dump( filesize($filename) );
var_dump( filesize($linkname) );
if( filesize($filename) == filesize($linkname) )
echo "\nSize of file and hard link are same\n";
else
echo "\nWarning: Size of file and hard link differ\n";
unlink($linkname);
unlink($filename);
echo "Done\n";
?>
--EXPECTF--
*** Accessing and updating data of file through hard link ***
-- Access data of the file through the hard link --
bool(true)
string(80) "texttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttext"
-- Check size of hard link and file --
Size of file and hard link are same
-- Updating file with data through hard link --
string(91) "texttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttexttextHello World"
-- Check size of hard link and file --
Size of file and hard link are same
-- Updating file with data and check data through hard link --
string(11) "Hello World"
-- Check size of hard link and file --
int(11)
int(11)
Size of file and hard link are same
Done