{"id":3372,"date":"2017-04-01T18:06:51","date_gmt":"2017-04-01T12:36:51","guid":{"rendered":"https:\/\/www.wikitechy.com\/technology\/?p=3372"},"modified":"2017-04-01T18:06:51","modified_gmt":"2017-04-01T12:36:51","slug":"check-php-directory-exists","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/technology\/check-php-directory-exists\/","title":{"rendered":"[ Solved -6 Answers] PHP – How do we check with PHP if directory exists"},"content":{"rendered":"

we want to create a directory if it does not exist. Is just using the is_dir function ok for that purpose? For example:<\/p>\n

php code<\/span> <\/div> 
if (!is_dir($dir)) {    mkdir($dir);         }Or should I also use file_exists? For example:if (!file_exists($dir) && !is_dir($dir)) {    mkdir($dir);         } <\/code><\/pre> <\/div>\n
    \n
  • Both would return true on Unix systems – in Unix everything is a file, including directories. But to test if that name is taken, you should check both.<\/li>\n
  • There might be a regular file named ‘foo’, which would prevent you from creating a directory name ‘foo’.<\/li>\n<\/ul>\n
     
     javascript code<\/span> <\/div> 
    $dirname = $_POST["search"];$filename = "\/folder\/" . $dirname . "\/";if (!file_exists($filename)) {    mkdir("folder\/" . $dirname, 0777);    echo "The directory $dirname was successfully created.";    exit;} else {    echo "The directory $dirname exists.";}<\/code><\/pre> <\/div>\n[ad type=”banner”]\n
      \n
    • In this scenario, we want to create a folder called \u201cimages\u201d:<\/li>\n<\/ul>\n
       
       php code<\/span> <\/div> 
      <?php\/\/The name of the directory that we need to create.$directoryName = 'images';\/\/Check if the directory already exists.if(!is_dir($directoryName)){    \/\/Directory does not exist, so lets create it.    mkdir($directoryName, 0755);}<\/code><\/pre> <\/div>\n
      An explanation of the PHP code snippet above<\/b>:<\/span><\/p>\n
        \n
      • We set the name of the directory that we want to create. In this case, it is \u201cimages\u201d.<\/li>\n
      • We used PHP\u2019s is_dir function to check if the folder already exists. If the is_dir function returns a boolean FALSE value, then we know that the directory in question doesn\u2019t already exist.<\/li>\n
      • If the directory doesn\u2019t already exist, we can create it using the mkdir function.<\/li>\n<\/ul>\n
        Note<\/span><\/strong> :that if you fail to check for the directory\u2019s existence, you run the risk of getting a nasty PHP warning:<\/p>\n
          \n
        • If you already have file with the same name, but it is not a directory, !file_exists($dir) will return false, folder will not be created, so error “failed to open stream: No such file or directory” will be occured.<\/li>\n
        • In Windows there is a difference between ‘file’ and ‘folder’ types, so need to use file_exists() and is_dir() at the same time, for ex.:<\/li>\n<\/ul>\n
           
           javascript code<\/span> <\/div> 
          if (file_exists('file')) {    if (!is_dir('file')) { \/\/if file is already present, but it's not a dir        \/\/do something with file - delete, rename, etc.        unlink('file'); \/\/for example        mkdir('file', NEEDED_ACCESS_LEVEL);    }} else { \/\/no file exists with this name    mkdir('file', NEEDED_ACCESS_LEVEL);}<\/code><\/pre> <\/div>\n[ad type=”banner”]\n
          Sample code:<\/b><\/span><\/h4>\n
           
           javascript code<\/span> <\/div> 
          $year = date("Y");   $month = date("m");   $filename = "..\/".$year;   $filename2 = "..\/".$year."\/".$month;if(file_exists($filename)){    if(file_exists($filename2)==false){        mkdir($filename2,0777);    }}else{    mkdir($filename,0777);}<\/code><\/pre> <\/div>\n