Description:
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SplFileInfo::getLinkTarget (http://www.php.net/manual/en/splfileinfo.getlinktarget.php) does not seem to work at all. It fails with a "Unable to read link <symlink name>, error: Invalid argument" message. Reproduced on 5.3.8 and 5.3.10-dev snapshot (201201312030) but works on 5.2.17.

This similar but not quite the same as #51804 (https://bugs.php.net/bug.php?id=51804)

Test script:
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touch('testfile');
symlink('testfile', 'testlink');
$f = new SplFileInfo( 'testlink' );
printf( 'readlink: %s'.PHP_EOL, readlink( $f->getPathname() ) );
printf( 'SplFileInfo::getLinkTarget: %s'.PHP_EOL, $f->getLinkTarget() );

Expected result:
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readlink: testfile
SplFileInfo::getLinkTarget: testfile

Actual result:
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readlink: testfile

Fatal error: Uncaught exception 'RuntimeException' with message 'Unable to read link testlink, error: Invalid argument' in /home/aheadley/Desktop/testing/test.php:6
Stack trace:
#0 /home/aheadley/Desktop/testing/test.php(6): SplFileInfo->getLinkTarget()
#1 {main}
  thrown in /home/aheadley/Desktop/testing/test.php on line 6