PHP Array交叉表实现代码

2019-04-09 16:40:24来源：易采站长站作者：王旭

如果使用sql语句做的话 工作量太大了，于是尝试自己写一个交叉表的类，好二话不说，我们看看代码

代码如下:

/**

* 基本交叉表

* @author hugh

*

*/

class Pivot

{

private $HORIZONTAL_TOTAL_FIELD = 'total';

private $VERTICAL_TOTAL_FIELD = 'total';

private $data;

private $topPivot;

private $leftPivot;

private $measure;

private $horizontalColumn = array ();

private $verticalColumn = array ();

private $pivotValue = array ();

private $isHorizontalTotal = true;

private $isVerticalTotal = true;

private $horizontalTotal = null;

private $verticalTotal = null;

private $title = 'PivotTab';

/**

* 初始化交叉表

*/

private function InitPivot()

{

$this->topPivot;

foreach ( $this->data as $d )

{

$this->horizontalColumn [] = $d [$this->leftPivot];

$this->verticalColumn [] = $d [$this->topPivot];

}

$this->horizontalColumn = array_unique ( $this->horizontalColumn );

$this->verticalColumn = array_unique ( $this->verticalColumn );

$reasult = array ();

foreach ( $this->horizontalColumn as $h )

{

foreach ( $this->verticalColumn as $v )

{

$this->pivotValue [$h] [$v] = 0;

}

}

}

/**

* 填充数据

*/

private function fillData()

{

foreach ( $this->data as $row )

{

$this->pivotValue [$row [$this->leftPivot]] [$row [$this->topPivot]] += $row [$this->measure];

}

if ($this->isHorizontalTotal)

{

$this->setHorizontalTotal ();

}

if ($this->isVerticalTotal)

{

$this->setVerticalTotal ();

}

}

/**

* 设置纵向合计

*/

private function setVerticalTotal()

{

$this->verticalColumn [] = $this->VERTICAL_TOTAL_FIELD;

foreach ( $this->horizontalColumn as $i )

{

$rowsum = 0;

foreach ( $this->verticalColumn as $j )

{

$rowsum += $this->pivotValue [$i] [$j];

}

$this->pivotValue [$i] [$this->TOTAL_FIELD] = $rowsum;

}

}

/**

* 设置横向合计

*/

private function setHorizontalTotal()

{

$this->horizontalColumn [] = $this->HORIZONTAL_TOTAL_FIELD;

foreach ( $this->verticalColumn as $i )

{

$rowsum = 0;

foreach ( $this->horizontalColumn as $j )

{

$rowsum += $this->pivotValue [$j] [$i];

}

$this->pivotValue [$this->HORIZONTAL_TOTAL_FIELD] [$i] = $rowsum;

}

}

/**

* 渲染

*/

function Render()

{

echo '

';

print_r ( $this->pivotValue );

}

/**

* 渲染为table

*/

function RenderToTable()

{

$resault = "

$resault .= "

$this->titlen";

foreach ( $this->verticalColumn as $value )

{

$resault .= "

$valuen";

}

$resault .= "

n";

foreach ( $this->horizontalColumn as $i )

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