PHP > les dossiers et fichiers

DOSSIERS

Lister les fichiers d’un dossier

$dir   = 'chemin/dossier';
$files = scandir($dir);
natsort($files);
arsort($files);
foreach ( $files as $var ){
   if ( is_dir ( $dir.'/'.$var ) ){
      if ( $var != '.' ){
         if ( ( $dir == './uploads' ) && ( $var != '..' ) ){
            $IDdir = str_replace( "/", "_", $var ) ;
            echo $dir.'/'.$var;
         }
      }
   }else{
      echo $var;
   }
}

Classer des fichiers par date de modification

while ($file = readdir($handler)) {
    if ($file != "." && $file != ".." && $file != '.svn') {
        $results[] = array('file' => $file, 'time' => filemtime($file));
    }
}

informations sur un fichier

stat( fichier )

dev volume
ino Numéro d’inode
mode droit d’accès à l’inode
nlink nombre de liens
uid userid du propriétaire
gid groupid du propriétaire
rdev type du volume, si le volume est une inode
size taille en octets
atime date de dernier accès (Unix timestamp)
mtime date de dernière modification (Unix timestamp)
ctime date de dernier changement d’inode (Unix timestamp)
blksize taille de bloc
blocks nombre de blocs de 512 octets alloués

 

NOTE : peut retourner des résultats étranges pour les fichiers de taille supérieure à 2 Go.

 

<?php
$stat = stat('C:\php\php.exe');
echo 'Date et heure d\'accès : ' . $stat['atime'];
echo 'Date et heure de modification : ' . $stat['mtime'];
echo 'Numéro du Device : ' . $stat['dev'];
?>

 

<?php
$stat = stat('C:\php\php.exe');
* Nous voulons que la date et heure d'accès soit d'une semaine après la date courante.
$atime = $stat['atime'] + 604800;
touch('some_file.txt', time(), $atime))
?>

 

Connaitre la taille d’un dossier

<?php
function dir_size($dir){
   $handle = opendir($dir);
   while ($file = readdir($handle)) {
      if ($file != '..' && $file != '.' && !is_dir($dir.'/'.$file)) {
         $mas += filesize($dir.'/'.$file);
      } else if (is_dir($dir.'/'.$file) && $file != '..' && $file != '.') {
         $mas += dir_size($dir.'/'.$file);
      }
   }
   return $mas;
}
echo dir_size('DIRECTORIO').' Bytes';
?>

FICHIERS

AJOUTER DU TEXTE A LA FIN DU FICHIER

 $txt = "user id date";
 $myfile = file_put_contents('logs.txt', $txt.PHP_EOL , FILE_APPEND | LOCK_EX);

 

SUPPRIMER UNE LIGNE D’UN FICHIER

$contents = file_get_contents($fichiere);
$contents = str_replace('texte de la ligne à effacer', '\n', $contents);
file_put_contents($fichier, $contents);

 

$DELETE = "texte de la ligne à effacer";
$data = file("./foo.txt");
$out = array();
foreach($data as $line){
    if(trim($line) != $DELETE) {
        $out[] = $line;
    }
}

$fp = fopen("./foo.txt", "w+");
flock($fp, LOCK_EX);
foreach($out as $line){
    fwrite($fp, $line);
}
flock($fp, LOCK_UN);
fclose($fp);

 

function remove_line($file, $remove){
    $lines = file($file, FILE_IGNORE_NEW_LINES);
    foreach($lines as $key => $line){
        if($line === $remove) unset($lines[$key]);
    }
    $data = implode(PHP_EOL, $lines);
    file_put_contents($file, $data);
}

 

This is also good if you’re looking for a substring (ID) in a line and want to replace the old line with the a new line.

 

$contents = file_get_contents($dir);
$new_contents= "";
if( strpos($contents, $id) !== false) { // if file contains ID
    $contents_array = preg_split("/\\r\\n|\\r|\\n/", $contents);
    foreach ($contents_array as &$record) {    // for each line
        if (strpos($record, $id) !== false) { // if we have found the correct line
            pass; // we've found the line to delete - so don't add it to the new contents.
        }else{
            $new_contents .= $record . "\r"; // not the correct line, so we keep it
        }
    }
    file_put_contents($dir, $new_contents); // save the records to the file
    echo json_encode("Successfully updated record!");
}
else{
    echo json_encode("failed - user ID ". $id ." doesn't exist!");
}

 

Like this:

file_put_contents($filename, str_replace($line . "\r\n", "", file_get_contents($filename)));

 

First, get all lines of the file (the following codes can be compressed):

$file = @fopen($dir, 'r'); # As you said, $dir is your filename
if ($file) { # Ending bracket is at the end
    if (filesize($dir)) { # Checks whether the file size is not zero (we know file exists)
        $fileContent = fread($file, filesize($dir)); # Reads all of the file
        fclose($file);
    } else {
        // File is empty
        exit; # Stops the execution (also you can throw an exception)
    }
    $fileLineByLine = explode(PHP_EOL, $fileContent); # Divides the file line by line

Here, you can perform your search:

    $key = false; # By default, your string $line is not in the file (false)
    foreach ($fileLineByLine as $lineNumber => $thisLine)
        if ($thisLine === $line)
            $key = $lineNumber; # If $line found in file, set $key to this line number

Simply, you can remove line $key + 1:

    if ($key !== false) # If string $line found in the file
        unset($fileLineByLine[$key]); # Remove line $key + 1 (e.g. $key = 2, line 3)

At last, you must save your changes to the file:

    $newFileContent = implode(PHP_EOL, $fileLineByLine); # Joins the lines together
    $file = fopen($dir, "w"); # Clears the file
    if ($file) {
        fwrite($file, $newFileContent); # Saves new content
        fclose($file);
    }
} # Ends 'if ($file) {' above

Also you can set above code as a function.

 

NOTE : $line must not have new line characters like \n. You must remove them:

$line = str_replace(PHP_EOL, '', $line);

Don’t use

$fileLineByLine[$key] = "";

instead of

unset($fileLineByLine[$key]);

because the first case doesn’t remove the line, it just clears the line (and an unwanted empty line will remain). In that case, implode() adds a new line also for $fileLineByLine[$key] which is empty; otherwise if you unset a variable, it will unavailable (and implode() can not find it).

—

Delete Line From File

Here we show how to take a file and a line number and delete that line from the file

<?php
### La fonction prend deux arguements, $fileName et $lineNum            ###
### Exemple : supprimer la ligne 14 du fichier "fichier.txt"            ###
###                                                                     ###
### $fileName = "fichier.txt";                                          ###
### $lineNum = 14                                                       ###
### delLineFromFile($fileName, $lineNum);                               ###
### Auteur Kevin Waterson kevin@phpro.org                               ###

$fileName = "/chemin/fichier.txt";
$lineNum = 87;
delLineFromFile($fileName, $lineNum);

function delLineFromFile($fileName, $lineNum){
   // check the file exists 
   if(!is_writable($fileName)){
      print "Le fichier $fileName n'est pas writable";
      exit;
   }else{
      // read the file into an array 
      $arr = file($fileName);
   }
   // the line to delete is the line number minus 1, because arrays begin at zero 
   $lineToDelete = $lineNum-1;
   // check if the line to delete is greater than the length of the file 
   if($lineToDelete > sizeof($arr)){
      print "Vous avez choisi la ligne n°$lineNum, plus grand que le total de lignes.";
      exit;
   }
   //remove the line 
   unset($arr["$lineToDelete"]);
   // open the file for reading 
   if (!$fp = fopen($fileName, 'w+')){
      print "Impossible d'ouvrir le fichier ($fileName)";
      exit;
   }
   // if $fp is valid 
   if($fp){
      // write the array to the file 
      foreach($arr as $line) { fwrite($fp,$line); }
      fclose($fp);
   }
   echo "terminé";
}
?>

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