I'm using VMware Fusion 8.0.0 (2985594) on Mac OS Yosemite (10.10.5 (14F27)) and have a Linux VM with Debian Wheezy (3.2.0-4-amd64) and PHP (5.4.41-0+deb7u1).
After I've upgraded from VMware Fusion 7 to WMware Fusion 8, the Typo3 (an open source CMS) on my development machine started throwing PHP syntax errors when reading its cache files. As I've been investigating the problem I've found that the behaviour is reproducible but only when the files are written to the folder shared between the the Host system and the VM.
When I'm requiring a PHP file of a certain size and a certain file name, PHP appears to continue reading over the end of the file into the middle of arbitrary other files. This leads mostly to PHP syntax errors – but depending on the file name they differ, e.g.:
PHP Parse error: syntax error, unexpected '' in require284.php on line 93
PHP Parse error: syntax error, unexpected '' in require107.php on line 88
^[[APHP Parse error: syntax error, unexpected 'p' in require472.php on line 88
PHP Parse error: syntax error, unexpected end of file in require884.php on line 88
PHP Parse error: syntax error, unexpected 'u' in require185.php on line 89
All of these errors are generated by requiring the same content with different file names. If I'm requiring the same file with the same name, the PHP error is also the same.
Steps to reproduce
I've written a PHP script which tries different file names for a given text until it crashes. Store this file in the shared folder and execute it with php -f. As you can see, all of the content of the file is commented out, so it shouldn't affect anything.
<?php
$content = <<<'EOT'
<?php
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*/
EOT;
for($i = 0; $i < 1000; $i++) {
// generate a random number
$rnd = rand(0, 1000);
$filename = 'require' . $rnd . '.php';
echo "Try no. $i, filename $filename\n";
// write the content to $filename
file_put_contents($filename, $content);
// require the same file
require($filename);
}
I've written another script to generate the generate the combination of text and filename which causes the problem:
<?php
// the decimal ASCII code of all upper and lower case chars
$ascii_alpha_chars= array_merge(range(65, 90), range(97, 122));
// how many tries
$count = 500;
$out= '';
for($i = 0; $i < $count; $i++) {
// generate a random number of files
$lines = rand(70, 90);
$out ='';
for($j = 0; $j < $lines; $j++) {
// ...and a random number of chars on each line
$rand = rand(30, 70);
$out .= get_random_chars($rand) . "\n";
}
write_and_require($out);
// echo "$i\n";
}
function write_and_require($out) {
// write the content to a file, require it, and delete it
$sourceCode= "<?php\n/*n$out\n*/\n";
for($i = 0; $i < 50; $i++) {
$rnd = rand(0, 1000);
$filename = 'require' . $rnd . '.php';
// echo "$filename\n";
file_put_contents($filename, $sourceCode);
require_once($filename);
unlink($filename);
}
}
function get_random_chars($n) {
global $ascii_alpha_chars;
$out = '';
for($i = 0; $i < $n; $i++) {
// add a random char
$out .= chr($ascii_alpha_chars[array_rand($ascii_alpha_chars)]);
}
return $out;
}
As this problem only occurs since upgrading to VMware 8 and only when the script is running in the shared folders, I strongly suspect it to be a problem within the VMware stack.
Can anyone elso reproduce this behaviour?
