PHP filesystem permission test

permtest.php

<?php

error_reporting(-1);
ini_set('display_errors', true);

echo '<h1>PHP permission test</h1>';

$currdir = realpath(dirname(__FILE__));
$testdir = $currdir . '/' . time();
$testfile = $testdir . '/mytest.txt';

$testdir_passed = true;
$testfile_passed = true;




echo '<h2>Dir test:</h2>';
echo '<pre>' . $testdir . '</pre>';

mkdir($testdir, 0755, true);

if (is_readable($testdir)) {
    echo '<p style="color:green">is_readable OK</p>';
} else {
    $testdir_passed = false;
    echo '<p style="color:red">is_readable FAIL</p>';
}

if (is_dir($testdir)) {
    echo '<p style="color:green">is_dir OK</p>';
} else {
    $testdir_passed = false;
    echo '<p style="color:red">is_dir FAIL</p>';
}

if (is_writable($testdir)) {
    echo '<p style="color:green">is_writable OK</p>';
} else {
    $testdir_passed = false;
    echo '<p style="color:red">is_writable FAIL</p>';
}




echo '<h2>File test:</h2>';
echo '<pre>' . $testfile . '</pre>';

if ($testdir_passed) {
    file_put_contents($testfile, 'this is a test');

    if (is_readable($testfile)) {
        echo '<p style="color:green">is_readable OK</p>';
    } else {
        $testfile_passed = false;
        echo '<p style="color:red">is_readable FAIL</p>';
    }

    if (is_file($testfile)) {
        echo '<p style="color:green">is_dir OK</p>';
    } else {
        $testfile_passed = false;
        echo '<p style="color:red">is_dir FAIL</p>';
    }

    if (is_writable($testfile)) {
        echo '<p style="color:green">is_writable OK</p>';
    } else {
        $testfile_passed = false;
        echo '<p style="color:red">is_writable FAIL</p>';
    }
} else {
    $testfile_passed = false;
    echo '<p style="color:red">DIR test failed, cannot continue</p>';
}



try {
    // Clean tests
    if ($testfile_passed) {
        unlink($testfile);
        if ($testdir_passed) {
            rmdir($testdir);
        }
    }
} catch (Exception $exc) {
    echo $exc->getTraceAsString();
}
?>