我想替换
[children] => Array
(
)
来自我的php数组...我试过
$array=str_replace('[children] => Array
(
)',' ',$nestedArray);
print_r($array);
但是数组中没有任何事情发生。我应该如何从php数组替换空子..
我的php输出
Array
(
[0] => Array
(
[id] => 44
[name] => அகடம்
[parent] =>
[color] => red
[children] => Array
(
[0] => Array
(
[id] => 45
[name] => மோசடி
[parent] => 44
[color] => red
[children] => Array
(
)
)
[1] => Array
(
[id] => 46
[name] => சூழ்ச்சி
[parent] => 44
[color] => red
[children] => Array
(
)
)
[2] => Array
(
[id] => 47
[name] => அநீதி
[parent] => 44
[color] => red
[children] => Array
(
)
)
[3] => Array
(
[id] => 48
[name] => பொல்லாங்கு
[parent] => 44
[color] => red
[children] => Array
(
)
)
)
)
)
完整的PHP代码
<?php
$con=mysqli_connect("localhost","root","pass","data");
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$name=$_GET['editor'];
$sql="SELECT * FROM phptab where value LIKE '%".$name."%'";
$r = mysqli_query($con,$sql);
$data = array();
while($row = mysqli_fetch_assoc($r)) {
$data[] = $row;
}
function buildtree($src_arr, $parent_id = 0, $tree = array())
{
foreach($src_arr as $idx => $row)
{
if($row['parent'] == $parent_id)
{
foreach($row as $k => $v)
$tree[$row['id']][$k] = $v;
unset($src_arr[$idx]);
$tree[$row['id']]['children'] = buildtree($src_arr, $row['id']);
}
}
ksort($tree);
return $tree;
}
function insertIntoNestedArray(&$array, $searchItem){
if($searchItem['parent'] == 0){
array_push($array, $searchItem);
return;
}
if(empty($array)){ return; }
array_walk($array, function(&$item, $key, $searchItem){
if($item['id'] == $searchItem['parent']){
array_push($item['children'], $searchItem);
return;
}
insertIntoNestedArray($item['children'], $searchItem);
}, $searchItem);
}
$nestedArray = array();
foreach($data as $itemData){
//$nestedArrayItem['value'] = $itemData['value'];
$nestedArrayItem['id'] = $itemData['id'];
$nestedArrayItem['name'] = $itemData['name'];
$nestedArrayItem['parent'] = $itemData['parent'];
$nestedArrayItem['tooltip'] = $itemData['tooltip'];
$nestedArrayItem['color'] = $itemData['color'];
$nestedArrayItem['level'] = $itemData['level'];
$nestedArrayItem['children'] = array();
//$data[]=$dat;
insertIntoNestedArray($nestedArray, $nestedArrayItem);
}
header('Content-Type: application/json');
print_r( $nestedArray);
?>
预期产出
Array
(
[0] => Array
(
[id] => 44
[name] => அகடம்
[parent] =>
[color] => red
[children] => Array
(
[0] => Array
(
[id] => 45
[name] => மோசடி
[parent] => 44
[color] => red
)
[1] => Array
(
[id] => 46
[name] => சூழ்ச்சி
[parent] => 44
[color] => red
)
[2] => Array
(
[id] => 47
[name] => அநீதி
[parent] => 44
[color] => red
)
[3] => Array
(
[id] => 48
[name] => பொல்லாங்கு
[parent] => 44
[color] => red
)
)
)
)
PASTBIN for DETAILS - http://pastebin.com/mqyfbdsq 基于建议的更新代码 - http://pastebin.com/mAkZ4q12
更新了php
<?php
$con=mysqli_connect("localhost","root","admin321","data");
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$name=$_GET['editor'];
$sql="SELECT * FROM phptab where value LIKE '%".$name."%'";
$i=-1;
$r = mysqli_query($con,$sql);
$data = array();
while($row = mysqli_fetch_assoc($r)) {
if($row['parent']==""){
++$i;
}
foreach($row as $k=>$v){
if($row['parent']==""){
$tree[$i][$k]=$v;
}else{
$tree[$i]['children'][$k]=$v;
}
$data[] = $row;
}
}
function buildtree($src_arr, $parent_id = 0, $tree = array())
{
foreach($src_arr as $idx => $row)
{
if($row['parent'] == $parent_id)
{
foreach($row as $k => $v)
$tree[$row['id']][$k] = $v;
unset($src_arr[$idx]);
$tree[$row['id']]['children'] =
buildtree($src_arr, $row['id']);
}
}
ksort($tree);
return $tree;
}
function insertIntoNestedArray(&$array, $searchItem){
if($searchItem['parent'] == 0){
array_push($array, $searchItem);
return;
}
if(empty($array)){ return; }
array_walk($array, function(&$item, $key, $searchItem){
if($item['id'] == $searchItem['parent']){
array_push($item['children'], $searchItem);
return;
}
insertIntoNestedArray($item['children'], $searchItem);
}, $searchItem);
}
$nestedArray = array();
foreach($data as $itemData){
//$nestedArrayItem['value'] = $itemData['value'];
$nestedArrayItem['id'] = $itemData['id'];
$nestedArrayItem['name'] = $itemData['name'];
$nestedArrayItem['parent'] = $itemData['parent'];
$nestedArrayItem['tooltip'] = $itemData['tooltip'];
$nestedArrayItem['color'] = $itemData['color'];
$nestedArrayItem['level'] = $itemData['level'];
$nestedArrayItem['children'] = array();
//$data[]=$dat;
insertIntoNestedArray($nestedArray, $nestedArrayItem);
}
header('Content-Type: application/json');
$json= json_encode($nestedArray,JSON_UNESCAPED_UNICODE);
echo $json = substr($json, 1, -1);
?>
最终找到了解决方案
<?php
$con=mysqli_connect("localhost","root","pass","data");
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$name=$_GET['input'];
$sql="SELECT * FROM phptab where value LIKE '%".$name."%'";
$r = mysqli_query($con,$sql);
$data = array();
while($row = mysqli_fetch_assoc($r)) {
$data[] = $row;
}
function buildtree($src_arr, $parent_id = 0, $tree = array())
{
foreach($src_arr as $idx => $row)
{
if($row['parent'] == $parent_id)
{
foreach($row as $k => $v)
$tree[$row['id']][$k] = $v;
unset($src_arr[$idx]);
$tree[$row['id']]['children'] = buildtree($src_arr, $row['id']);
}
}
ksort($tree);
return $tree;
}
function insertIntoNestedArray(&$array, $searchItem){
if($searchItem['parent'] == 0){
array_push($array, $searchItem);
return;
}
if(empty($array)){ return; }
array_walk($array, function(&$item, $key, $searchItem){
if($item['id'] == $searchItem['parent']){
array_push($item['children'], $searchItem);
return;
}
insertIntoNestedArray($item['children'], $searchItem);
}, $searchItem);
}
$nestedArray = array();
function array_remove_empty($haystack)
{
foreach ($haystack as $key => $value) {
if (is_array($value)) {
$haystack[$key] = array_remove_empty($haystack[$key]);
}
if (empty($haystack[$key])) {
unset($haystack[$key]);
}
}
return $haystack;
}
foreach($data as $itemData){
$nestedArrayItem['id'] = $itemData['id'];
$nestedArrayItem['name'] = $itemData['name'];
$nestedArrayItem['parent'] = $itemData['parent'];
$nestedArrayItem['tooltip'] = $itemData['tooltip'];
$nestedArrayItem['color'] = $itemData['color'];
$nestedArrayItem['level'] = $itemData['level'];
$nestedArrayItem['children'] = array();
insertIntoNestedArray($nestedArray, $nestedArrayItem);
}
header('Content-Type: application/json');
$jj=(array_remove_empty($nestedArray));
$json=json_encode($jj,JSON_UNESCAPED_UNICODE);
echo $json;
?>
答案 0 :(得分：1)
感谢您修改问题。
最好的做法是避免在同一个数组上多个循环来添加/删除元素。干。 - 不要重复自己
如果您不希望阵列中包含某些元素，请不要将它们放入其中。 如果你想要一个特定的数组结构，那就适当地构建一次。
我还没有对此进行过测试，但它应该只使用一个循环就能为您提供所需的数组结构和值。如果没有，请编辑您的问题进行解释，发送评论，然后我会进一步提供帮助。
$name=$_GET['editor'];
// $_GET must be validated/santized before used in query...
$sql="SELECT * FROM phptab where value LIKE '%".$name."%' ORDER BY `parent`,`id`";
$r=mysqli_query($con,$sql);
$i=-1;
$j=-1;
while($row=mysqli_fetch_assoc($r)){
if($row['parent']=="0"){
++$i; // if a parent row, increment its numeric key
}else{
++$j; // if a child row, increment its numeric key
}
foreach($row as $k=>$v){
if($row['parent']=="0"){
// parent row data goes in outer array
$tree[$i][$k]=$v;
}else{
// child row parent's children (inner) array with its numeric key
$tree[$i]['children'][$j][$k]=$v;
}
}
}
header('Content-Type: application/json');
$json=json_encode($tree,JSON_UNESCAPED_UNICODE);
echo $json=substr($json,1,-1);