Question

我正在尝试从表单输入中获取数据，并且在PHP中，更改它在模板创建模块/应用程序中的使用顺序。我需要它在一个多维数组中使用。

//How the array currently looks
    $templateData = [
        0 => 'h',
        1 => 1,
        2 => 2,
        3 => 3,
        4 => 'c-1-3',
        5 => 3,
        6 => 5,
        7 => 'c-2-3',
        8 => 3,
        9 => 'c-3-3',
        10 => 'f',
        11 => 2
    ];

//How the array should look
    $templateData = [
        0 =>[ //header row
            0 => [1,2,3] //column
        ],
        1 =>[ //content row(s)
            0 => [3,5], //column
            1 => [3],
            2 => [0]
        ],
        2 => [ //footer row
            0 => [2] //column
        ]
    ]

'h'表示模板标题行的开头，'c-1-3'表示从第一列开始的3列的行的开头。 'f'代表页脚行的开头。我现在只是画一个空白，我无法绕过它。

这就是我现在所处的位置，但它仍未按预期工作：

$elements = $request->input('elements'); //laravel code that grabs array input
    $row = 0;
    $column = 0;
    foreach($elements as $key => $element) {
        //if value is a letter
        if(preg_match('/^[a-zA-Z]/', $element)) {
            //if the 3rd letter in the string is a 1
            if(!isset($element[2]) || $element[2] == '1') { $row++; }
            //cycle through values after current key
            for($i=$key+1; $i < count($elements);$i++){
                //until you hit another letter
                if(preg_match('/^[a-zA-Z]/', $elements[$i])) { break; }
                $column++;
                $temp[$row][$column][] = $elements[$i];
            }
            $column = 0;
        }
    }

$ templateData和$ elements变量在上下文中相同。

Answer 1

这是我最终得到的代码。终于明白了。这有效：

dostuff

Answer 2

这有点矫枉过正，但你可以拥有全部功能，如果你想改变逻辑，你只需要改变处理程序。希望它能以某种方式提供帮助。

$templateData = [
    0 => 'h',
    1 => 1,
    2 => 2,
    3 => 3,
    4 => 'c-1-3',
    5 => 3,
    6 => 5,
    7 => 'c-2-3',
    8 => 3,
    9 => 'f',
    10 => 2
];

$tmpKey = '';
$tmpArray = [];

class Test
{
    /**
     * @var []
     */
    private $data = [];

    /**
     * @var []
     */
    private $columns = [];

    /**
     * @var array
     */
    private $numOfColumns = 0;

    /**
     * @var []
     */
    private $header = [];

    /**
     * @var []
     */
    private $footer = [];

    /**
     * @var string
     */
    private $current = [
        'key' => '',
        'matches' => ''
    ];

    /**
     * @var []
     */
    private $rules = [
        'header' => [
            'expression' => 'h',
            'handler' => 'headerHandler',
            'matches' => false
        ],
        'footer' => [
            'expression' => 'f',
            'handler' => 'footerHandler',
            'matches' => false
        ],
        'columns' => [
            'expression' => 'c-\d+-\d+',
            'handler' => 'columnHandler',
            'matches' => "columnMatches"
        ]
    ];

    /**
     * @param $data
     */
    public function __construct($data)
    {
        $this->data = $data;
        $this->process();
    }

    /**
     * @throws Exception
     */
    private function process()
    {
        foreach($this->data as $data) {

            if (!is_int($data)) {
                if (!$this->setRule($data)) {
                    throw new \RuntimeException("Rule Not found.");
                }
            } else {
                $this->handleRule($data);
            }
        }
    }

    /**
     * @param $data
     */
    private function headerHandler($data)
    {
        $this->header[] = $data;
    }

    /**
     * @param $data
     */
    private function footerHandler($data)
    {
        $this->footer[] = $data;
    }

    /**
     * @param $data
     */
    private function columnHandler($data)
    {
        $columns = explode('-', $this->current['matches']);
        if ($this->columns[($columns[1] - 1)][0] == 0){
            $this->columns[($columns[1] - 1)][0] = $data;
        } else {
            array_push($this->columns[($columns[1] - 1)], $data);
        }
    }

    /**
     * @param $data
     */
    private function columnMatches($data)
    {
        $columns = explode('-', $data);

        if ($this->numOfColumns == 0) {
            $this->numOfColumns = end($columns);
            $this->columns = array_fill(0, $this->numOfColumns, [0]);
        }
    }

    /**
     * @param $data
     * @return bool
     */
    private function setRule($data)
    {
        foreach($this->rules as $key => $rules) {
            if (preg_match("/^{$rules['expression']}$/", $data, $matches)) {
                if ($rules['matches']) {
                    $this->{$rules['matches']}($data);
                }
                $this->current['key'] = $key;
                $this->current['matches'] = $data;
                return true;
            }
        }

        return false;
    }

    /**
     * @return mixed
     */
    public function getHeader()
    {
        return $this->header;
    }

    /**
     * @return mixed
     */
    public function getColumns()
    {
        return $this->columns;
    }

    /**
     * @return mixed
     */
    public function getFooter()
    {
        return $this->footer;
    }

    /**
     * @return array
     */
    public function getResult()
    {
        return [
            0 => [$this->header],
            1 => $this->columns,
            2 => $this->footer
        ];
    }

    /**
     * @param $data
     */
    private function handleRule($data)
    {
        $this->{$this->rules[$this->current['key']]['handler']}($data);
    }

}

$test = new Test($templateData);
echo '<h1>Header</h1>';
var_dump($test->getHeader());
echo '<h1>Footer</h1>';
var_dump($test->getFooter());
echo '<h1>Columns</h1>';
var_dump($test->getColumns());
echo '<h1>Result</h1>';
var_dump($test->getResult());exit;

Ideone：Example Here

重新格式化PHP数组

2 个答案: