Summary of methods for traversing folders in PHP

In general PHP interviews, many people will ask this question: Write a method that can traverse all files and folders in a specified folder. Let's summarize it below, I hope it can be helpful to everyone

php traverses the folder, which is often needed

/*Get all files*/

function get_all_files( $path ){
  $list = array();
  foreach( glob( $path . '/*') as $item ){
    if( is_dir( $item ) ){
     $list = array_merge( $list , get_all_files( $item ) );
    }
    else{
     $list[] = $item;
    }
  }
  return $list;
}

/*Get all files, only one level of directory files*/

function get_my_files( $path ){
  $list = array();
  foreach( glob( $path . '/*') as $item ){
    if( is_dir( $item ) ){
     $list[] = $item;
    }
  }
  return $list;
}

php Traverse the folder Enhanced version

/*Get all files with time*/

function get_all_files_time( $path ){
 clearstatcache();
  $list = array();
 
  foreach( glob( $path . '/*') as $item ){
    if( is_dir( $item ) ){
  $list = array_merge( $list , get_all_files_time( $item ) );
 
    }
    else{
 
  $list[$item] = ftime(fileatime($item)); //fileatime 访问时间 fileatime 访问时间 filemtime 修改时间
 
 
    }
  }
  return $list;
}

/*Get all files with time*/

function get_all_files_mtime( $path ){
 clearstatcache();
  $list = array();
 
  foreach( glob( $path . '/*') as $item ){
    if( is_dir( $item ) ){
  $list = array_merge( $list , get_all_files_mtime( $item ) );
 
    }
    else{
 
  $list[$item] = ftime(filemtime($item)); //fileatime 访问时间 fileatime 访问时间 filemtime 修改时间
 
 
    }
  }
  return $list;
}

The above is a summary of the methods of traversing folders in PHP. For more related content, please pay attention to the PHP Chinese website (www.php.cn)!