php Implementation Method of Establishing Multi level Directory

This paper illustrates the implementation method of php in the form of an example. The code is simple, practical and powerful, which has a certain reference value for php programmers. Example details are as follows:

/**
 * Depending on the path path Create a multilevel directory 
 *$dir Target directory  $mode Authority, 0700 Indicates the highest permissions 
*/
function makedir( $dir , $mode = "0700" ) {
  if(strpos($dir , "/" )){
    $dir_path = "" ;
    $dir_info = explode ( "/" , $dir );
    foreach($dir_info  as  $key => $value ){
      $dir_path .= $value ;
      if (!file_exists($dir_path )){
        @mkdir ( $dir_path , $mode ) or  die ( " Failed to create folder " );
        @chmod ( $dir_path , $mode );
      } else {
        $dir_path .= "/" ;
 continue ;
 }
      $dir_path .= "/" ;
    }
    return $dir_path ;
  } else {
 @mkdir( $dir , $mode ) or die( " The establishment failed , Please check permissions " );
    @chmod ( $dir , $mode );
    return $dir ;
  }
} //end makedir
makedir( "0/1/2/3/" );