目前，我从SELECT检索数据并转换为PHP assoc数组。因此，我得到了这个数组。
[0] => array
(
[Gattung] => 'Gattung_A'
[Untergattung] => null
[Sektion] => null
[Untersektion] => null
[Serie] => null
[Unterserie] => null
[Art] => 'Art_A'
[Unterart] => null
[Varietaet] => null
[SubVarietaet] => null
[Form] => 'Form_A'
[Unterform] => null
[SpezialForm] => null
[Hybride] => null
[Blendling] => null
[Sorte] => null
)
[1] => array
(
[Gattung] => 'Gattung_A'
[Untergattung] => null
[Sektion] => null
[Untersektion] => null
[Serie] => null
[Unterserie] => null
[Art] => 'Art_B'
[Unterart] => null
[Varietaet] => 'Variant_G'
[SubVarietaet] => null
[Form] => 'Form_B'
[Unterform] => null
[SpezialForm] => null
[Hybride] => null
[Blendling] => null
[Sorte] => null
)
[2] => array
(
[Gattung] => 'Gattung_B'
[Untergattung] => null
[Sektion] => null
[Untersektion] => null
[Serie] => null
[Unterserie] => null
[Art] => 'Art_C'
[Unterart] => null
[Varietaet] => 'Variant_A'
[SubVarietaet] => null
[Form] => null
[Unterform] => null
[SpezialForm] => null
[Hybride] => null
[Blendling] => null
[Sorte] => null
)
.........
Nearly ~300k records
到目前为止，我已使用array_unique将数组修改为基于唯一值的一维数组。这是我的结果：
(
[0] => 'Gattung|Gattung_A'
[1] => 'Art|Art_A'
[3] => 'Form|Form_A'
[5] => 'Art|ArtB'
[7] => 'Varietaet|Variant_G'
[9] => 'Form|Form_G'
[11] => 'Gattung|Gattung_B'
[13] => 'Art|Art_C'
[15] => 'Varietaet|Variant_A'
}
然而，我的结果并没有很好地分组。我需要在页面上显示它，所以像建立一个分层系统。
问题： @Melsi我希望我的第二次编辑能够净化我的任务。
如何将数据显示到树中 表格（参见编辑2）或表格（见编辑 1）？
感谢。
编辑1：
我正在做的是在几个表中创建类似FULLTEXT搜索的东西。这是连接所有表的查询： （所有FK都有每个表的id的索引）
SELECT
tGa.Gattung AS Gattung,
tUG.Untergattung AS Untergattung,
tSe.Sektion AS Sektion,
tUS.Untersektion AS Untersektion,
tSer.Serie AS Serie,
tUser.Unterserie AS Unterserie,
tA.Art AS Art,
tUa.Unterart AS Unterart,
tV.Varietaet AS Varietaet,
tSV.SubVarietaet AS SubVarietaet,
tF.Form AS Form,
tUF.Unterform AS Unterform,
tSF.SpezialForm AS SpezialForm,
tH.Hybride AS Hybride,
tBL.Blendling AS Blendling,
tSo.Sorte AS Sorte
FROM
botanischername AS tBot
LEFT JOIN ( gattung AS tGa ) ON ( tBot.ID_Ga = tGa.ID_Ga )
LEFT JOIN ( untergattung AS tUg ) ON ( tBot.ID_UG = tUg.ID_UG )
LEFT JOIN ( sektion AS tSe ) ON ( tSe.ID_Se = tBot.ID_Se )
LEFT JOIN ( untersektion AS tUS ) ON ( tUS.ID_US = tBot.ID_US )
LEFT JOIN ( serie AS tSer ) ON ( tSer.ID_Ser = tBot.ID_Ser )
LEFT JOIN ( unterserie AS tUSer ) ON ( tUser.ID_USer = tBot.ID_USer )
LEFT JOIN ( art AS tA ) ON ( tA.ID_A = tBot.ID_A )
LEFT JOIN ( unterart AS tUa ) ON ( tUa.ID_UA = tBot.ID_UA )
LEFT JOIN ( varietaet AS tV ) ON ( tV.ID_V = tBot.ID_V )
LEFT JOIN ( subvarietaet AS tSV ) ON ( tSV.ID_SV = tBot.ID_SV)
LEFT JOIN ( form AS tF ) ON ( tF.ID_F = tBot.ID_F )
LEFT JOIN ( unterform AS tUF ) ON ( tUF.ID_UF = tBot.ID_UF )
LEFT JOIN ( spezialform AS tSF ) ON ( tSF.ID_SF = tBot.ID_SF )
LEFT JOIN ( hybride AS tH ) ON ( tH.ID_H = tBot.ID_H )
LEFT JOIN ( blendling AS tBL ) ON ( tBL.ID_BL = tBot.ID_BL )
LEFT JOIN ( sorte AS tSo ) ON ( tSo.ID_So = tBot.ID_So )
LEFT JOIN ( status AS tST
CROSS JOIN pflanze AS tPfl) ON
( tST.ID_ST = tBot.ID_ST AND tPfl.ID = tBot.ID )
WHERE
tGa.Gattung LIKE #1_Word# OR
tUG.Untergattung LIKE #2_Word# OR
tSe.Sektion LIKE #3_Word# OR
tUS.Untersektion LIKE #4_Word# OR
tSer.Serie LIKE #5_Word# OR
tUser.Unterserie LIKE #6_Word# OR
tA.Art LIKE #7_Word# OR
tUa.Unterart LIKE #8_Word# OR
tV.Varietaet LIKE #9_Word# OR
tSV.SubVarietaet LIKE #10_Word# OR
tF.Form LIKE #11_Word# oR
tUF.Unterform LIKE #12_Word# OR
tSF.SpezialForm LIKE #13_Word# oR
tH.Hybride LIKE #14_Word# oR
tBL.Blendling LIKE #15_Word# OR
tSo.Sorte LIKE #16_Word#
我知道使用LIKE %xxx% OR是一个繁重的过程。如果你想以另一种方式建议我，那很好。
我的预期结果如下：
________________________________________________________________________________
| | | |______________________________Detail_____________|
| Num | Gattung | Art | Form | Varietaet | ...... | the other cols|
|------|-------------|-------|-----------|------------|--------|---------------|
| 1. | Gattung A | Art A | Form A | | | |
| | | <same | Form B | | | |
| | | data or Art A> | | | | |
| | | Art B | Form B | Variant G | | |
| 2. | Gattung B | Art C | | Variant A | | |
-------------------------------------------------------------------------------
Back 1 2 3 Next
编辑2：简明问题。
或以树形式，
----- Art A ------ Form A
| |
| -- Form B
1. Gattung A ----|---- Art B ------ Form B ---- Variant G
2. Gattung B --------- Art C ------ Variant A
... And so on.
答案 0 :(得分：2)
@exodream
感谢您的评论。
这是我对你的问题的新答案，它避免空行，如果你需要避免空洞的颜色或需要别的东西让我知道。
<?php
//make the labels
$labels=array('Gattung','Untergattung','Sektion','Untersektion','Serie',
'Unterserie','Art','Unterart','Varietaet','SubVarietaet','Form','Unterform',
'SpezialForm','Hybride','Blendling','Sorte' );
// Make a MySQL Connection
mysql_connect("localhost", "root", "") or die(mysql_error());
//select database
mysql_query("drop database if exists `test_db`;")or die(mysql_error());
mysql_query("create database `test_db`;")or die(mysql_error());
mysql_select_db("test_db") or die(mysql_error());
//create table
mysql_query(" drop table if exists `test_table`;")or die(mysql_error());
mysql_query("
CREATE TABLE `test_table` (
`Gattung` char(30) NULL ,
`Untergattung` char(30) NULL ,
`Sektion` char(30) NULL ,
`Untersektion` char(30) NULL ,
`Serie` char(30) NULL ,
`Unterserie` char(30) NULL ,
`Art` char(30) NULL ,
`Unterart` char(30) NULL ,
`Varietaet` char(30) NULL ,
`SubVarietaet` char(30) NULL ,
`Form` char(30) NULL ,
`Unterform` char(30) NULL ,
`SpezialForm` char(30) NULL ,
`Hybride` char(30) NULL ,
`Blendling` char(30) NULL ,
`Sorte` char(30) NULL
)
COLLATE='latin1_swedish_ci'
ENGINE=InnoDB;") or die(mysql_error());
mysql_query("INSERT INTO `test_table` VALUES
('Gattung_A',null,null,null,null,null,'Art_A',null,null,null,'Form_A',null,null,null,null,null ) ")
or die(mysql_error());
mysql_query("INSERT INTO `test_table` VALUES
('Gattung_A',null,null,null,null,null,'Art_A',null,null,null,'Form_A',null,null,null ,null,null ) ")
or die(mysql_error());
mysql_query("INSERT INTO `test_table` VALUES
('Gattung_B',null,null,null,null,null,'Art_C',null,'Variant_A',null,null,null,null,null,null,null ) ")
or die(mysql_error());
mysql_query("INSERT INTO `test_table` VALUES
(null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null ) ")
or die(mysql_error());
mysql_query("INSERT INTO `test_table` VALUES
('Gattung_Q',null,null,null,null,null,'Art_C',null,'Variant_A',null,'Form_W',null,null,null,null,null ) ")
or die(mysql_error());
mysql_query("INSERT INTO `test_table` VALUES
('Gattung_Q',null,'test','test','test','test','Art_S','test','Variant_Y','test','Form_H','test','test','test','test','last' ) ")
or die(mysql_error());
//get result
$result = mysql_query("SELECT * FROM `test_table` ;")
or die(mysql_error());
normal_display();
non_empty_row_display();
non_empty_column_display();
function non_empty_row_display()
{
//get data
global $result;
$final_array=array();
global $result;
mysql_data_seek ($result , 0);
print '<b><br><h2>TABLE: 2 NON EMPTY VALUES OF EACH ROW</h2></b>';
print '<table border=7 bordercolor=orange >';
$index=0;
$color=array('#66CCFF','#00FF00');
//for every row of the table
while($row = mysql_fetch_row($result))
{
$current_row='';
//for every coloumn
foreach ($row as $value)
//if value is not null
if($value!=null)//then keep it
$current_row .= $value.' | ';
if($current_row!='')
echo '<tr bgcolor=',$color[$index%2],'><th>ROW ',$index++,'</th><td>',$current_row,'</td></tr>',
'<tr><td colspan=2 height=5 bgcolor=pink></td></tr>';
}//while
echo '</table>';
}//function
function normal_display()
{
print '<b><h2>TABLE:1 Normal display</h2></b>';
print '<table border=1><tr>';
global $labels;
foreach($labels as $value)
echo '<th>',$value,'</th>';
print '</tr>';
global $result;
while($row = mysql_fetch_row($result))
{
print '<tr>';
foreach($row as $value)
echo '<td>',$value,' </td>';
print '</tr>';
}//while
print '</table>';
}//function
function non_empty_column_display()
{
//get data
global $result;
mysql_data_seek ($result , 0);
//for every row of the table
$final_column=array();
while($row = mysql_fetch_row($result))
//for every coloumn
foreach ($row as $key => $value)
//if value is not null
if($value!=null)
//if $final_column[$key] exists append value to it, otherwise assign value
$final_column[$key]=(isset($final_column[$key]))?$final_column[$key].=$value.'<br>':$value.' <br> ';
echo '<br><br><h2>Array:1 </h2>The coloumn with index 6 is placed before the one with index 2 in this array
because its first non empty value is fetched earlier. Check for your self:<br>';
echo '<pre>',strip_tags(print_r($final_column,true)),'</pre>';
//for each mysql table coloumn name
global $labels;
foreach($labels as $key => $value)
//if it exists in the result
if(array_key_exists($key,$final_column))
//keep it
$label_header=(isset($label_header))?$label_header.='<th>'.$value.'</th>':'<th>'.$value.'</th>';
ksort($final_column);
echo '<br><br><h2>Array:2 </h2>We can order this. Check for your self:<br>';
echo '<pre>',strip_tags(print_r($final_column,true)),'</pre>';
echo '<br><b><h2>TABLE:3 </h2>THIS IS A TABLE WITH NON EMPTY COLOUMNS<b>';
echo '<table border=1>',$label_header,'<tr>';
foreach($final_column as $value)
echo '<td valign=top>',$value,'</td>';
echo '</tr></table>';
}//function
?>
我已经修复了第147行和第161行（前面的示例），这是一个警告，我们必须在连接之前检查变量是否存在，在您的示例中它将是：
147：
$final_column[$key]=(isset($final_column[$key]))?$final_column[$key].=$value.'<br>':$value.' <br> ';
161：
$label_header=(isset($label_header))?$label_header.='<th>'.$value.'</th>':'<th>'.$value.'</th>';
答案 1 :(得分：1)
1）如果你可以在SQL中进行排序/分组/聚合，那么在SQL中进行 - 而不是在PHP中。 SQL和rDBMS是为此而设计和优化的。
2）PHP没有多维数组 - 它们是分层的。
3）如果您不想在数组中使用空值，请不要将它们放在那里
4）如果数据中的结果集具有主键，则使用数组键
while ($r=mysql_fetch_assoc($result)) {
foreach($r as $key=>$val) {
if ($val || $val===0 || $val===false) {
$array[$r['Art']][$key]=$val;
}
}
}