使用PHP数组实现无限分类,不使用数据库,不使用递归.
2015-01-24信息快讯网
<?php class cat { public $data; public function __construct() { @include "data.php"; $this->data = $class; } public function CreateSortLevel($fatherlevel) { if(empty($fatherlevel)) { if(is_array($this->data)) { $fast_level = array(); foreach($this->data as $value) { if(strlen($value["sortlevel"]) == 3) { $fast_level[] = $value["sortlevel"]; } } $max_fast_level = max($fast_level); unset($fast_level); $sub = ceil($max_fast_level) + 1; switch(strlen($sub)) { case 1: return "00{$sub}"; break; case 2: return "0{$sub}"; break; case 3: return $sub; break; } } else { return "001"; } } foreach($this->data as $val) { if(eregi("^".$fatherlevel.".{3}$",$val["sortlevel"])) { $level[] = $val["sortlevel"]; } } if(is_array($level)) { $max_two_level = max($level); $sub = ceil(substr($max_two_level,-3)) + 1; switch(strlen($sub)) { case 1: return substr($max_two_level,0,strlen($max_two_level)-1).$sub; break; case 2: return substr($max_two_level,0,strlen($max_two_level)-2).$sub; break; case 3: return substr($max_two_level,0,strlen($max_two_level)-3).$sub; break; } } else { return $fatherlevel."001"; } } public function orders() { $op = $this->data; $this->array_usort($op,"sortlevel",SORT_ASC); return $op; } public function add_cat($sortname,$sortlevel) { $data = time(); $arr = array ( "{$data}" => array ( "sortname" => $sortname, "sortlevel" => $this->CreateSortLevel($sortlevel) ) ); $rs = $this->data + $arr; $this->add_wirte($rs); } private function array_usort(&$array) { $args = func_get_args(); for($i=1,$cmd='',$size=count($args);$i<$size;$i++) { $num = $i; $order = ""; $con = "@strcmp($a['$args[$num]'],$b['$args[$num]'])"; while(++$i < $size) { if($args[$i] === SORT_NUMERIC) { $con = "($a['$args[$num]']-$b['$args[$num]'])"; } else if($args[$i] === SORT_DESC) { $order = "-1*"; } else if(is_string($args[$i])) { $i--; break; } } $cmd .= "if($num = $con)return $order$num;else "; if($order != '') { $i++; } } @usort($array,@create_function('$a,$b',"$cmd return 0;")); } public function wirte($sortname,$sortlevel) { $array = "<?phprn"; $array .= '$class = array'."rn(rn"; $array .= ' "'.time().'" => array'."rn"; $array .= ' ('."rn"; $array .= ' "sortname" => "'.$sortname.'"'.",rn"; $array .= ' "sortlevel" => "'.$this->CreateSortLevel($sortlevel).'"'."rn"; $array .= ' )'."rn"; $array .= ")rn?>"; file_put_contents("data.php",$array); } public function add_wirte($rs) { $array = "<?phprn"; $array .= '$class = array'."rn(rn"; foreach($rs as $key=>$value) { $array .= "rn"; $array .= ' "'.$key.'" => array'."rn"; $array .= ' ('."rn"; $array .= ' "sortname" => "'.$value["sortname"].'"'.",rn"; $array .= ' "sortlevel" => "'.$value["sortlevel"].'"'."rn"; $array .= ' ),'; } $array = substr($array,0,-1); $array .= "rn)rn?>"; file_put_contents("data.php",$array); } } $cat = new cat(); if($_GET["action"] == "add") { if(strlen($_POST["sortname"]) < 2) { echo '<script language="JavaScript">alert("请添加分类名字")</script>'; echo '<script language="JavaScript">location.href="/cat.php?action=tpl"</script>'; exit; } if(file_exists("data.php")) { $cat->add_cat($_POST["sortname"],$_POST["sortlevel"]); echo '<script language="JavaScript">alert("添加成功")</script>'; echo '<script language="JavaScript">location.href="/cat.php"</script>'; exit; } else { $cat->wirte($_POST["sortname"],$_POST["sortlevel"]); echo '<script language="JavaScript">alert("添加成功")</script>'; echo '<script language="JavaScript">location.href="/cat.php"</script>'; exit; exit; } } if($_GET["action"] == "tpl") { echo '<form id="form1" name="form1" method="post" action="cat.php?action=add">';"rn"; echo '<select name="sortlevel">'."rn"; echo '<option value="" selected="selected">根分类</option>'."rn"; foreach($cat->orders() as $val) { echo '<option value="'.$val["sortlevel"].'">'; $clevel = strlen(substr($val['sortlevel'],0,-3)); for($i = 0; $i < $clevel; $i++) { echo "-"; } echo $val['sortname']."</option>rn"; } echo "</select>rn"; echo ' <input name="sortname" type="text" id="sortname" />'."rn"; echo '<input type="submit" name="Submit" value="提交" />'; echo "</form>"; exit; } foreach($cat->orders() as $value) { $level = strlen(substr($value['sortlevel'],0,-3)); for($i = 0; $i < $level; $i++) { echo "-"; } echo $value["sortname"]; echo "<br>"; } ?>