Detailed explanation of the method of deleting empty folders based on recursion in php7

This article mainly introduces the method of deleting empty folders based on recursion in php7. It analyzes the recursive directory traversal and judgment, deletion and other related operation skills of php7 based on specific examples. Friends in need can refer to it

<?php
$path = &#39;d:/&#39;;
rmDir_1($path);
function rmDir_1($path) {
  $files = scandir($path);
// 删除当前目录和上一级目录
  foreach($files as $key => $file) {
    if ( $file == &#39;.&#39; || $file == &#39;..&#39;) {
      unset($files[$key]);
    }
  }
  if ($files) {
    foreach($files as $file) {
      if (is_dir($path . &#39;/&#39; . $file)) {
        //echo &#39;dir=&#39; . $path . &#39;/&#39; . $file . PHP_EOL;
        rmDir_1($path . &#39;/&#39; . $file);
      }
    }
  } else {
    //echo &#39;rmdir=&#39; . $path . PHP_EOL;
    rmdir($path);
  }
}
?>

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