List Current Directory with PHP

currentdirlisting.php

<?PHP
# modified from https://stackoverflow.com/a/15678731/12479141
# add small capabilities to disallowed extension

# The current directory
$directory = dir("./");

# If you want to turn on Extension Filter, then uncomment this:
### $allowed_ext = array(".sample", ".png", ".jpg", ".jpeg", ".txt", ".doc", ".xls", ".notshow"); 

# If you want to disallowed this extension, uncomment line:
$disallowed_ext = array(".notshow", ".php");
# if both set, disallowed will have more priority over allowed


## Description of the soft: list_dir_files.php  
## Major credits: phpDIRList 2.0 -(c)2005 Ulrich S. Kapp :: Systemberatung ::

$do_link = TRUE; 
$sort_what = 0; //0- by name; 1 - by size; 2 - by date
$sort_how = 0; //0 - ASCENDING; 1 - DESCENDING


# # #
function dir_list($dir){ 
    $i=0; 
    $dl = array(); 
    if ($hd = opendir($dir))    { 
        while ($sz = readdir($hd)) {  
            if (preg_match("/^\./",$sz)==0) $dl[] = $sz;$i.=1;  
        } 
    closedir($hd); 
    } 
    asort($dl); 
    return $dl; 
} 
if ($sort_how == 0) { 
    function compare0($x, $y) {  
        if ( $x[0] == $y[0] ) return 0;  
        else if ( $x[0] < $y[0] ) return -1;  
        else return 1;  
    }  
    function compare1($x, $y) {  
        if ( $x[1] == $y[1] ) return 0;  
        else if ( $x[1] < $y[1] ) return -1;  
        else return 1;  
    }  
    function compare2($x, $y) {  
        if ( $x[2] == $y[2] ) return 0;  
        else if ( $x[2] < $y[2] ) return -1;  
        else return 1;  
    }  
}else{ 
    function compare0($x, $y) {  
        if ( $x[0] == $y[0] ) return 0;  
        else if ( $x[0] < $y[0] ) return 1;  
        else return -1;  
    }  
    function compare1($x, $y) {  
        if ( $x[1] == $y[1] ) return 0;  
        else if ( $x[1] < $y[1] ) return 1;  
        else return -1;  
    }  
    function compare2($x, $y) {  
        if ( $x[2] == $y[2] ) return 0;  
        else if ( $x[2] < $y[2] ) return 1;  
        else return -1;  
    }  

} 

################################################## 
#    We get the information here 
################################################## 

$i = 0; 
while($file=$directory->read()) { 
    $file = strtolower($file);
    $ext = strrchr($file, '.');
    if (isset($allowed_ext) && (!in_array($ext,$allowed_ext)) || ( isset($disallowed_ext) && (in_array($ext,$disallowed_ext)) ) )
        {
            // dump 
        }
    else {
        $temp_info = stat($file); 
        $new_array[$i][0] = $file; 
        $new_array[$i][1] = $temp_info[7]; 
        $new_array[$i][2] = $temp_info[9]; 
        $new_array[$i][3] = date("F d, Y", $new_array[$i][2]); 
        $i = $i + 1; 
        } 
} 
$directory->close(); 

################################################## 
# We sort the information here 
################################################# 

switch ($sort_what) { 
    case 0: 
            usort($new_array, "compare0"); 
    break; 
    case 1: 
            usort($new_array, "compare1"); 
    break; 
    case 2: 
            usort($new_array, "compare2"); 
    break; 
} 

############################################################### 
#    We display the infomation here 
############################################################### 

$i2 = count($new_array); 
$i = 0; 
echo "<table border=1> 
                <tr> 
                    <td width=150> File name</td> 
                    <td width=100> File Size</td> 
                    <td width=100>Last Modified</td> 
                </tr>"; 
for ($i=0;$i<$i2;$i++) { 
    if (!$do_link) { 
        $line = "<tr><td align=right>" .  
                        $new_array[$i][0] .  
                        "</td><td align=right>" .  
                        number_format(($new_array[$i][1]/1024)) .  
                        "k"; 
        $line = $line  . "</td><td align=right>" . $new_array[$i][3] . "</td></tr>"; 
    }else{ 
        $line = '<tr><td align=right><A HREF="' .   
                        $new_array[$i][0] . '">' .  
                        $new_array[$i][0] .  
                        "</A></td><td align=right>"; 
        $line = $line . number_format(($new_array[$i][1]/1024)) .  
                        "k"  . "</td><td align=right>" .  
                        $new_array[$i][3] . "</td></tr>"; 
    } 
    echo $line; 
} 
echo "</table>"; 


?>