tree1 · PHP笔记

``` <?php namespace fast; use think\Config; /** * 通用的树型类 * @author XiaoYao <476552238li@gmail.com> */ class Tree { protected static $instance; //默认配置 protected $config = []; public $options = []; /** * 生成树型结构所需要的2维数组 * @var array */ public $arr = []; /** * 生成树型结构所需修饰符号，可以换成图片 * @var array */ public $icon = array('│', '├', '└'); public $nbsp = " "; public $pidname = 'pid'; public function __construct($options = []) { if ($config = Config::get('tree')) { $this->options = array_merge($this->config, $config); } $this->options = array_merge($this->config, $options); } /** * 初始化 * @access public * @param array $options 参数 * @return Tree */ public static function instance($options = []) { if (is_null(self::$instance)) { self::$instance = new static($options); } return self::$instance; } /** * 初始化方法 * @param array $arr 2维数组，例如： * array( * 1 => array('id'=>'1','pid'=>0,'name'=>'一级栏目一'), * 2 => array('id'=>'2','pid'=>0,'name'=>'一级栏目二'), * 3 => array('id'=>'3','pid'=>1,'name'=>'二级栏目一'), * 4 => array('id'=>'4','pid'=>1,'name'=>'二级栏目二'), * 5 => array('id'=>'5','pid'=>2,'name'=>'二级栏目三'), * 6 => array('id'=>'6','pid'=>3,'name'=>'三级栏目一'), * 7 => array('id'=>'7','pid'=>3,'name'=>'三级栏目二') * ) * @param string $pidname 父字段名称 * @param string $nbsp 空格占位符 * @return Tree */ public function init($arr = [], $pidname = null, $nbsp = null) { $this->arr = $arr; if (!is_null($pidname)) { $this->pidname = $pidname; } if (!is_null($nbsp)) { $this->nbsp = $nbsp; } return $this; } /** * 得到子级数组 * @param int * @return array */ public function getChild($myid) { $newarr = []; foreach ($this->arr as $value) { if (!isset($value['id'])) { continue; } if ($value[$this->pidname] == $myid) { $newarr[$value['id']] = $value; } } return $newarr; } /** * 读取指定节点的所有孩子节点 * @param int $myid 节点ID * @param boolean $withself 是否包含自身 * @return array */ public function getChildren($myid, $withself = false) { $newarr = []; foreach ($this->arr as $value) { if (!isset($value['id'])) { continue; } if ($value[$this->pidname] == $myid) { $newarr[] = $value; $newarr = array_merge($newarr, $this->getChildren($value['id'])); } elseif ($withself && $value['id'] == $myid) { $newarr[] = $value; } } return $newarr; } /** * 读取指定节点的所有孩子节点ID * @param int $myid 节点ID * @param boolean $withself 是否包含自身 * @return array */ public function getChildrenIds($myid, $withself = false) { $childrenlist = $this->getChildren($myid, $withself); $childrenids = []; foreach ($childrenlist as $k => $v) { $childrenids[] = $v['id']; } return $childrenids; } /** * 得到当前位置父辈数组 * @param int * @return array */ public function getParent($myid) { $pid = 0; $newarr = []; foreach ($this->arr as $value) { if (!isset($value['id'])) { continue; } if ($value['id'] == $myid) { $pid = $value[$this->pidname]; break; } } if ($pid) { foreach ($this->arr as $value) { if ($value['id'] == $pid) { $newarr[] = $value; break; } } } return $newarr; } /** * 得到当前位置所有父辈数组 * @param int * @param bool $withself 是否包含自己 * @return array */ public function getParents($myid, $withself = false) { $pid = 0; $newarr = []; foreach ($this->arr as $value) { if (!isset($value['id'])) { continue; } if ($value['id'] == $myid) { if ($withself) { $newarr[] = $value; } $pid = $value[$this->pidname]; break; } } if ($pid) { $arr = $this->getParents($pid, true); $newarr = array_merge($arr, $newarr); } return $newarr; } /** * 读取指定节点所有父类节点ID * @param int $myid * @param boolean $withself * @return array */ public function getParentsIds($myid, $withself = false) { $parentlist = $this->getParents($myid, $withself); $parentsids = []; foreach ($parentlist as $k => $v) { $parentsids[] = $v['id']; } return $parentsids; } /** * 树型结构Option * @param int $myid 表示获得这个ID下的所有子级 * @param string $itemtpl 条目模板如："<option value=@id @selected @disabled>@spacer@name</option>" * @param mixed $selectedids 被选中的ID，比如在做树型下拉框的时候需要用到 * @param mixed $disabledids 被禁用的ID，比如在做树型下拉框的时候需要用到 * @param string $itemprefix 每一项前缀 * @param string $toptpl 顶级栏目的模板 * @return string */ public function getTree($myid, $itemtpl = "<option value=@id @selected @disabled>@spacer@name</option>", $selectedids = '', $disabledids = '', $itemprefix = '', $toptpl = '') { $ret = ''; $number = 1; $childs = $this->getChild($myid); if ($childs) { $total = count($childs); foreach ($childs as $value) { $id = $value['id']; $j = $k = ''; if ($number == $total) { $j .= $this->icon[2]; $k = $itemprefix ? $this->nbsp : ''; } else { $j .= $this->icon[1]; $k = $itemprefix ? $this->icon[0] : ''; } $spacer = $itemprefix ? $itemprefix . $j : ''; $selected = $selectedids && in_array($id, (is_array($selectedids) ? $selectedids : explode(',', $selectedids))) ? 'selected' : ''; $disabled = $disabledids && in_array($id, (is_array($disabledids) ? $disabledids : explode(',', $disabledids))) ? 'disabled' : ''; $value = array_merge($value, array('selected' => $selected, 'disabled' => $disabled, 'spacer' => $spacer)); $value = array_combine(array_map(function ($k) { return '@' . $k; }, array_keys($value)), $value); $nstr = strtr((($value["@{$this->pidname}"] == 0 || $this->getChild($id)) && $toptpl ? $toptpl : $itemtpl), $value); $ret .= $nstr; $ret .= $this->getTree($id, $itemtpl, $selectedids, $disabledids, $itemprefix . $k . $this->nbsp, $toptpl); $number++; } } return $ret; } /** * 树型结构UL * @param int $myid 表示获得这个ID下的所有子级 * @param string $itemtpl 条目模板如："<li value=@id @selected @disabled>@name @childlist</li>" * @param string $selectedids 选中的ID * @param string $disabledids 禁用的ID * @param string $wraptag 子列表包裹标签 * @param string $wrapattr 子列表包裹属性 * @return string */ public function getTreeUl($myid, $itemtpl, $selectedids = '', $disabledids = '', $wraptag = 'ul', $wrapattr = '') { $str = ''; $childs = $this->getChild($myid); if ($childs) { foreach ($childs as $value) { $id = $value['id']; unset($value['child']); $selected = $selectedids && in_array($id, (is_array($selectedids) ? $selectedids : explode(',', $selectedids))) ? 'selected' : ''; $disabled = $disabledids && in_array($id, (is_array($disabledids) ? $disabledids : explode(',', $disabledids))) ? 'disabled' : ''; $value = array_merge($value, array('selected' => $selected, 'disabled' => $disabled)); $value = array_combine(array_map(function ($k) { return '@' . $k; }, array_keys($value)), $value); $nstr = strtr($itemtpl, $value); $childdata = $this->getTreeUl($id, $itemtpl, $selectedids, $disabledids, $wraptag, $wrapattr); $childlist = $childdata ? "<{$wraptag} {$wrapattr}>" . $childdata . "</{$wraptag}>" : ""; $str .= strtr($nstr, array('@childlist' => $childlist)); } } return $str; } /** * 菜单数据 * @param int $myid * @param string $itemtpl * @param mixed $selectedids * @param mixed $disabledids * @param string $wraptag * @param string $wrapattr * @param int $deeplevel * @return string */ public function getTreeMenu($myid, $itemtpl, $selectedids = '', $disabledids = '', $wraptag = 'ul', $wrapattr = '', $deeplevel = 0) { $str = ''; $childs = $this->getChild($myid); if ($childs) { foreach ($childs as $value) { $id = $value['id']; unset($value['child']); $selected = in_array($id, (is_array($selectedids) ? $selectedids : explode(',', $selectedids))) ? 'selected' : ''; $disabled = in_array($id, (is_array($disabledids) ? $disabledids : explode(',', $disabledids))) ? 'disabled' : ''; $value = array_merge($value, array('selected' => $selected, 'disabled' => $disabled)); $value = array_combine(array_map(function ($k) { return '@' . $k; }, array_keys($value)), $value); $bakvalue = array_intersect_key($value, array_flip(['@url', '@caret', '@class'])); $value = array_diff_key($value, $bakvalue); $nstr = strtr($itemtpl, $value); $value = array_merge($value, $bakvalue); $childdata = $this->getTreeMenu($id, $itemtpl, $selectedids, $disabledids, $wraptag, $wrapattr, $deeplevel + 1); $childlist = $childdata ? "<{$wraptag} {$wrapattr}>" . $childdata . "</{$wraptag}>" : ""; $childlist = strtr($childlist, array('@class' => $childdata ? 'last' : '')); $value = array( '@childlist' => $childlist, '@url' => $childdata || !isset($value['@url']) ? "javascript:;" : url($value['@url']), '@addtabs' => $childdata || !isset($value['@url']) ? "" : (stripos($value['@url'], "?") !== false ? "&" : "?") . "ref=addtabs", '@caret' => ($childdata && (!isset($value['@badge']) || !$value['@badge']) ? '<i class="fa fa-angle-left"></i>' : ''), '@badge' => isset($value['@badge']) ? $value['@badge'] : '', '@class' => ($selected ? ' active' : '') . ($disabled ? ' disabled' : '') . ($childdata ? ' treeview' : ''), ); $str .= strtr($nstr, $value); } } return $str; } /** * 特殊 * @param integer $myid 要查询的ID * @param string $itemtpl1 第一种HTML代码方式 * @param string $itemtpl2 第二种HTML代码方式 * @param mixed $selectedids 默认选中 * @param mixed $disabledids 禁用 * @param string $itemprefix 前缀 * @return string */ public function getTreeSpecial($myid, $itemtpl1, $itemtpl2, $selectedids = 0, $disabledids = 0, $itemprefix = '') { $ret = ''; $number = 1; $childs = $this->getChild($myid); if ($childs) { $total = count($childs); foreach ($childs as $id => $value) { $j = $k = ''; if ($number == $total) { $j .= $this->icon[2]; $k = $itemprefix ? $this->nbsp : ''; } else { $j .= $this->icon[1]; $k = $itemprefix ? $this->icon[0] : ''; } $spacer = $itemprefix ? $itemprefix . $j : ''; $selected = $selectedids && in_array($id, (is_array($selectedids) ? $selectedids : explode(',', $selectedids))) ? 'selected' : ''; $disabled = $disabledids && in_array($id, (is_array($disabledids) ? $disabledids : explode(',', $disabledids))) ? 'disabled' : ''; $value = array_merge($value, array('selected' => $selected, 'disabled' => $disabled, 'spacer' => $spacer)); $value = array_combine(array_map(function ($k) { return '@' . $k; }, array_keys($value)), $value); $nstr = strtr(!isset($value['@disabled']) || !$value['@disabled'] ? $itemtpl1 : $itemtpl2, $value); $ret .= $nstr; $ret .= $this->getTreeSpecial($id, $itemtpl1, $itemtpl2, $selectedids, $disabledids, $itemprefix . $k . $this->nbsp); $number++; } } return $ret; } /** * * 获取树状数组 * @param string $myid 要查询的ID * @param string $itemprefix 前缀 * @return array */ public function getTreeArray($myid, $itemprefix = '') { $childs = $this->getChild($myid); $n = 0; $data = []; $number = 1; if ($childs) { $total = count($childs); foreach ($childs as $id => $value) { $j = $k = ''; if ($number == $total) { $j .= $this->icon[2]; $k = $itemprefix ? $this->nbsp : ''; } else { $j .= $this->icon[1]; $k = $itemprefix ? $this->icon[0] : ''; } $spacer = $itemprefix ? $itemprefix . $j : ''; $value['spacer'] = $spacer; $data[$n] = $value; $data[$n]['childlist'] = $this->getTreeArray($id, $itemprefix . $k . $this->nbsp); $n++; $number++; } } return $data; } /** * 将getTreeArray的结果返回为二维数组 * @param array $data * @param string $field * @return array */ public function getTreeList($data = [], $field = 'name') { $arr = []; foreach ($data as $k => $v) { $childlist = isset($v['childlist']) ? $v['childlist'] : []; unset($v['childlist']); $v[$field] = $v['spacer'] . ' ' . $v[$field]; $v['haschild'] = $childlist ? 1 : 0; if ($v['id']) { $arr[] = $v; } if ($childlist) { $arr = array_merge($arr, $this->getTreeList($childlist, $field)); } } return $arr; } } ```