根据 php 递归读取文件夹生成文件树
class tree{ public $arr = array(); public $icon = array( '│', '├─', '└─' ); public $ret; public function set_tree($arr = array()) { $this->arr = $arr; } public function get_child($myid) { $newarr = array(); if (is_array($this->arr)) { foreach ($this->arr as $id => $a) { if ($a['pid'] == $myid) { $newarr[$id] = $a; } } } return $newarr ? $newarr : false; } //获取带格式数组 public function getarray($myid = 0, $sid = 0, $adds = '') { $number = 1; $child = $this->get_child($myid); if (is_array($child)) { $total = count($child); foreach ($child as $a) { $j = $k = ''; if ($number == $total) { $j .= $this->icon[2]; } else { $j .= $this->icon[1]; $k = $adds ? $this->icon[0] : ''; } $spacer = $adds ? $adds . $j : ''; $a['name'] = $spacer . ' ' . $a['name']; $this->ret[] = $a; $fd = $adds . $k . '   '; $this->getarray($a['id'], $sid, $fd); $number++; } } return $this->ret; } //select public function get_tree($myid, $str, $sid = 0, $adds = '') { $number = 1; $child = $this->get_child($myid); if (is_array($child)) { $total = count($child); foreach ($child as $a) { $id = $a['id']; $j = $k = ''; if ($number == $total) { $j .= $this->icon [2]; } else { $j .= $this->icon [1]; $k = $adds ? $this->icon [0] : ''; } $spacer = $adds ? $adds . $j : ''; $select = $id == $sid ? 'selected' : ''; $this->ret .= sprintf($str, $id, $select, $spacer, $a['name']); $this->get_tree($id, $str, $sid, $adds . $k . ' '); $number++; } } return $this->ret; } //文件夹目录 public function read_all_dir($dir, $onlydir = true, $ignore = []) { $result = array(); $handle = opendir($dir); if ($handle) { while (($file = readdir($handle)) !== false) { if (in_array($file, $ignore)) continue; if ($file != '.' && $file != '..') { $cur_path = $dir . directory_separator . $file; if (is_dir($cur_path)) { $result[$file] = $this->read_all_dir($cur_path, $onlydir); } else { if (!$onlydir) { $result[] = $file; } } } } closedir($handle); } return $result; } //数组转换 public function arrshift($array, $pid = 0) { static $r = []; static $index = 1; if (is_array($array) && count($array) > 0) { foreach ($array as $k => $v) { $r[] = array( 'id' => $index, 'pid' => $pid, 'name' => is_array($v) ? $k : $v ); $index++; $this->arrshift($v, $index - 1); } } return $r; }}
使用示例
$tree = new tree ();//文件夹遍历$data = $tree->read_all_dir(realpath('../file_dir'), false, ['.git', '.idea', 'vendor']);//转换成[['id','pid','name']]的二维数组$data = $tree->arrshift($data);$tree->set_tree($data); $data = $tree->getarray();foreach ($data as $value) { echo $value['name']; echo '<br/>'; echo '<br/>';}
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以上就是分享一个生成文件层级树类的详细内容。