Columns

Table::columns(array $columns) configures the per-column metadata. $columns is an array; each element is an associative array whose keys describe one column. Columns left out fall back to libxlsxwriter's defaults (Column1, Column2, ...).

Function prototype

\Vtiful\Kernel\Table::columns(array $columns): self

array $columns

Each entry supports the following keys:

• header (string) — column title, replaces the default ColumnN.
• formula (string) — column formula applied to every data row, e.g. '=SUM(Table1[@[Q1]:[Q4]])'.
• total_string (string) — string shown in the total row for this column, e.g. 'Total'.
• total_function (int) — total-row aggregator, one of Table::FUNCTION_*.
• total_value (float) — explicit numeric value for the total row (normally derived from total_function).
• format (Format|resource) — cell format for the data cells of this column. Accepts a Format instance or its resource handle.
• header_format (Format|resource) — format for the header cell.

Table::FUNCTION_* constants: FUNCTION_NONE, FUNCTION_AVERAGE, FUNCTION_COUNT_NUMS, FUNCTION_COUNT, FUNCTION_MAX, FUNCTION_MIN, FUNCTION_STD_DEV, FUNCTION_SUM, FUNCTION_VAR.

Example

A sales table with four quarterly columns and a total row.

$config = ['path' => './'];
$excel  = new \Vtiful\Kernel\Excel($config);

$fileHandle = $excel->fileName('tutorial.xlsx')->getHandle();
$bold       = new \Vtiful\Kernel\Format($fileHandle);
$boldFmt    = $bold->bold()->toResource();

$table = new \Vtiful\Kernel\Table();
$table->name('Sales')
      ->totalRow()
      ->columns([
          ['header' => 'Region', 'header_format' => $boldFmt, 'total_string' => 'Total'],
          ['header' => 'Q1',     'total_function' => \Vtiful\Kernel\Table::FUNCTION_SUM],
          ['header' => 'Q2',     'total_function' => \Vtiful\Kernel\Table::FUNCTION_SUM],
          ['header' => 'Q3',     'total_function' => \Vtiful\Kernel\Table::FUNCTION_SUM],
          ['header' => 'Q4',     'total_function' => \Vtiful\Kernel\Table::FUNCTION_SUM],
      ]);

$excel->data([
        ['East',  100, 110, 120, 130],
        ['West',   90,  95, 100, 105],
        ['North', 200, 210, 220, 230],
        // last row is reserved for the total row
        ['',        0,   0,   0,   0],
    ])
    ->addTable('A1:E5', $table)
    ->output();