函数非常奇怪物业

我写的PHP代码如下：p

?php

$writeok = array(\"uploads/\", \"cache/\", \"templates_c/\", \"p\");

$title = \"test file php\";

$content = \"table align=\'center\'trtd align=\'left\'\\n\";

$error = false;

foreach ($writeok as $wok) {

echo \"br /\".\"../\".$wok.\"br /\";

echo fileowner(\"../\".$wok).\"br /\";

echo filegroup(\"../\".$wok).\"br /\";

echo fileowner(\"../\".$wok).\"br /\";

echo substr(sprintf(\'%o\', fileperms(\"../\".$wok)), -4).\"br /\";

echo filetype(\"../\".$wok).\"br /\";

if (!is_dir(\"../\".$wok)) {

if ( file_exists(\"../\".$wok) ) {

@chgrp(\"../\".$wok, fileowner(\"../\".$wok));

@chmod(\"../\".$wok, 0666);

if (is_writeable(\"../\".$wok)==false) {

$content .= \"file \".$wok.\" is not writeable\".\"br /\";

$error = true;

}else{

$content .= \"file \".$wok.\" is writeable\".\"br /\";

}

if (!is_readable(\"../\".$wok)) {

$content .= \"file \".$wok.\" is not readable\".\"br /\";

$error = true;

}else{

$content .= \"file \".$wok.\" is readable\".\"br /\";

}

}

} else {

@chgrp(\"../\".$wok, fileowner(\"../\".$wok));

@chmod(\"../\".$wok, 0777);

if (!is_writeable(\"../\".$wok)) {

$content .= \"dir \".$wok.\" is not writeable\".\"br /\";

$error = true;

}else{

$content .= \"dir \".$wok.\"is writeable\".\"br /\";

}

if (!is_readable(\"../\".$wok)) {

$content .= \"dir \".$wok.\" is not readable\".\"br /\";

$error = true;

}else{

$content .= \"dir \".$wok.\" is readable\".\"br /\";

}

}

}

$content .= \"/td/tr/table\\n\";

if(! $error) {

$content .= \"p\".\"not error\".\"/p\";

}else{

$content .= \"p\".\" error \".\"/p\";

}

echo $content;

?

可是执行结果非常奇怪：

../uploads/

0

0

0

0777

dir

../cache/

0

0

0

0777

dir

../templates_c/

0

0

0

0777

dir

../p

0

0

0

0666

file

dir uploads/ is not writeable

dir uploads/ is readable

dir cache/ is not writeable

dir cache/ is readable

dir templates_c/ is not writeable

dir templates_c/ is readable

在旅行前一定要科学规划行程。如遇下雪、泥石流等地质灾害频发的季节 file p is not writeable

file p is readable

error

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