$json = '[{id:27,children:[{id:28,children:[{id:30},{id:29}]}]},{id:31},{id:32}]';$arry = json_decode($json,true);
也有可能是这样的结构：
$json = '[{id:27,children:[{id:30,children:[{id:31}]}]},{id:28,children:[{id:29}]},{id:32}]';$arry = json_decode($json,true);
也就是说层数、顺序都不是固定的。
我想把他降为一维数组，并记录下每一个一维数组的深度，对应的父键等
以下是第二个数组期望得到的结果：
array ([0] => array ( [id] => 27 [level] => 0 [parent] => 0 )[1] => array ( [id] => 30 [level] => 1 [parent] => 27 )[2] => array ( [id] => 31 [level] => 2 [parent] => 30 )[3] => array ( [id] => 28 [level] => 0 [parent] => 0 )[4] => array ( [id] => 29 [level] => 1 [parent] => 28 )[5] => array ( [id] => 32 [level] => 0 [parent] => 0 ) )
想了一晚上了。。。请大神帮帮忙
回复讨论(解决方案) $json = '[{id:27,children:[{id:30,children:[{id:31}]}]},{id:28,children:[{id:29}]},{id:32}]';$arry = json_decode($json,true);print_r(foo($arry));function foo($ar, $level=0, $parent=0, &$res=array()) { foreach($ar as $v) { $t = array(); $v['level'] = $level; $v['parent'] = $parent; if(isset($v['children'])) { $t = $v['children']; unset($v['children']); } $res[] = $v; if($t) foo($t, $level+1, $v['id'], $res); } return $res;}
array( [0] => array ( [id] => 27 [level] => 0 [parent] => 0 ) [1] => array ( [id] => 30 [level] => 1 [parent] => 27 ) [2] => array ( [id] => 31 [level] => 2 [parent] => 30 ) [3] => array ( [id] => 28 [level] => 0 [parent] => 0 ) [4] => array ( [id] => 29 [level] => 1 [parent] => 28 ) [5] => array ( [id] => 32 [level] => 0 [parent] => 0 ))
$json = '[{id:27,children:[{id:30,children:[{id:31}]}]},{id:28,children:[{id:29}]},{id:32}]';$arry = json_decode($json,true);print_r(foo($arry));function foo($ar, $level=0, $parent=0, &$res=array()) { foreach($ar as $v) { $t = array(); $v['level'] = $level; $v['parent'] = $parent; if(isset($v['children'])) { $t = $v['children']; unset($v['children']); } $res[] = $v; if($t) foo($t, $level+1, $v['id'], $res); } return $res;}
array( [0] => array ( [id] => 27 [level] => 0 [parent] => 0 ) [1] => array ( [id] => 30 [level] => 1 [parent] => 27 ) [2] => array ( [id] => 31 [level] => 2 [parent] => 30 ) [3] => array ( [id] => 28 [level] => 0 [parent] => 0 ) [4] => array ( [id] => 29 [level] => 1 [parent] => 28 ) [5] => array ( [id] => 32 [level] => 0 [parent] => 0 ))
啊！！！！
十分感谢！
if(isset($v['children'])) { $t = $v['children']; unset($v['children']); }
这一步我实在想不出来。