我构建了一个插件，可以运行CSV文件并将变量解析为自定义帖子的自定义字段。

在我的自定义帖子类型中，我构建了一个带有可重复自定义字段的元框。此元框从MySQL获取数据的格式如下：

a:3:{i:0;a:2:{s:5:"title";s:7:"Title 1";s:5:"point";s:19:"55.635656,12.506767";}i:1;a:2:{s:5:"title";s:7:"Title 2";s:5:"point";s:19:"55.625668,12.502392";}i:2;a:2:{s:5:"title";s:7:"Title 3";s:5:"point";s:19:"55.618781,12.519143";}}

以下代码在CSV文件的x个坐标变量中运行：

            // Variables used for getting coordinates
            $a = 0;
            $b = 0; 
            $c = 0; 

            //Variables used for coordinate titles
            $ctitle = 0; 

            // Array containing all imported coordinate sets
            $points = array();

            //$coordinate;
            $Xcoordinate;
            $Ycoordinate; 
            $XYcoordinate;

            while (!empty($post["geometry/coordinates/" . $a . "/" . $b . "/" . $c])) {

                // Instantiating array that contain a single set of point data
                $point = array();

                $newctexttitle = \'Title \' . $ctitle;

                array_push($point,"title");
                array_push($point,$newctexttitle);
                array_push($point,"point");
                echo "</br>";

                echo "Coordinate title is: " . $ctitle;
                echo "</br>";

                if ($post["geometry/coordinates/" . $a . "/" . $b . "/" . $c]){

                    echo "The imported X coordinate is: " . $post["geometry/coordinates/" . $a . "/" . $b . "/" . $c];
                    echo "</br>";

                    $Xcoordinate = $post["geometry/coordinates/" . $a . "/" . $b . "/" . $c];

                    // Increase c variable by one
                    $c++;

                    echo "C is now: " . $c;
                    echo "</br>";
                }

                if ($post["geometry/coordinates/" . $a . "/" . $b . "/" . $c]){

                    echo "The imported Y coordinate is: " . $post["geometry/coordinates/" . $a . "/" . $b . "/" . $c];
                    echo "</br>";

                    $Ycoordinate = $post["geometry/coordinates/" . $a . "/" . $b . "/" . $c];

                    // Decrease c variable by one
                    $c--;

                    echo "C is now: " . $c;
                    echo "</br>";
                }

                // Increase b variable by one
                $b++;

                echo "B is now: " . $b;
                echo "</br>";

                // Increase title variable by one
                $ctitle++;

                $XYcoordinate = $Xcoordinate . ", " . $Ycoordinate;

                array_push($point,$XYcoordinate);

                array_push($points,$point);

                // Empty out array for the specific point
                unset($point);
            }

            update_post_meta($post["id"], \'points\', $points);

问题是，post meta以以下格式存储：

a:3:{i:0;a:4:{i:0;s:5:"title";i:1;s:7:"Title 0";i:2;s:5:"point";i:3;s:19:"8.228271, 56.094402";}i:1;a:4:{i:0;s:5:"title";i:1;s:7:"Title 1";i:2;s:5:"point";i:3;s:19:"8.216593, 56.082355";}i:2;a:4:{i:0;s:5:"title";i:1;s:7:"Title 2";i:2;s:5:"point";i:3;s:18:"8.219391, 56.08139";}}

请注意嵌套数组中每个变量的“i:0”、“i:1”、“i:2”等。

为了以相同的格式存储数据，我需要做哪些不同的事情，如上面的示例所示？

 [title] => Title 1
 [point] => 55.635656,12.506767

[0] => title
[1] => Title 0
[2] => point
[3] => 8.228271, 56.094402

array_push($point,"title");
array_push($point,$newctexttitle);
array_push($point,"point");

$point[\'title\'] = $newctexttitle;

 array_push($point,$XYcoordinate);

$point[\'point\'] = $XYcoordinate;