--TEST--
Test symlink(), linkinfo(), link() and is_link() functions : error conditions - link & is_link
--SKIPIF--
<?php
if (PHP_OS_FAMILY === 'Windows' && PHP_ZTS) {
    die('xfail different handling of space as filename with ZTS/NTS on Windows');
}
?>
--FILE--
<?php
// create temp $filename and create link $linkname to it
$filename = __DIR__."/symlink_link_linkinfo_is_link_error2.tmp";
$fp = fopen($filename, "w");  // create temp file
fclose($fp);

// linkname used to create soft/hard link
$linkname = __DIR__."/symlink_link_linkinfo_is_link_link_error2.tmp";

echo "*** Testing link() for error conditions ***\n";

//invalid arguments
var_dump( link('', $linkname) );  // empty string as filename
var_dump( link(' ', $linkname) );  // space as filename
var_dump( link(false, $linkname) );  // boolean false as filename
var_dump( link($filename, '') );  // '' as linkname
var_dump( link($filename, false) );  // false as linkname

echo "\n*** Testing is_link() for error conditions ***\n";

//invalid arguments
var_dump( is_link('') );  // empty string as linkname
var_dump( is_link(' ') );  // space as linkname
var_dump( is_link(false) );  // boolean false as linkname
var_dump( is_link($filename) );  // file given to is_link

echo "Done\n";
?>
--CLEAN--
<?php
unlink(__DIR__."/symlink_link_linkinfo_is_link_error2.tmp");
?>
--EXPECTF--
*** Testing link() for error conditions ***

Warning: link(): No such file or directory in %s on line %d
bool(false)

Warning: link(): No such file or directory in %s on line %d
bool(false)

Warning: link(): No such file or directory in %s on line %d
bool(false)

Warning: link(): No such file or directory in %s on line %d
bool(false)

Warning: link(): No such file or directory in %s on line %d
bool(false)

*** Testing is_link() for error conditions ***
bool(false)
bool(false)
bool(false)
bool(false)
Done