PHP 范围() 从 A 到 ZZ?

2022-08-30 13:47:54

是否可以使用 PHP 获得从 A 到 ZZ* 的范围?

a b c ...机 管 局。。。zx zy zz

对我来说,这不起作用:

range('A', 'ZZ');

它是针对PHPExcel的,当它给出BE作为最高的字段时,我会遍历所有colum。在这种情况下,我只得到A,B:

range ('A', 'BE')

答案 1

利用 PHP 的“perl 样式”增量字符的能力

$letters = array();
$letter = 'A';
while ($letter !== 'AAA') {
    $letters[] = $letter++;
}

但你也可以使用简单的整数值,并利用PHPExcel的内置PHPExcel_Cell::stringFromColumnIndex()方法。

编辑

从 PHP 5.5 开始,您还可以使用生成器来避免在内存中实际构建数组。

function excelColumnRange($lower, $upper) {
    ++$upper;
    for ($i = $lower; $i !== $upper; ++$i) {
        yield $i;
    }
}

foreach (excelColumnRange('A', 'ZZ') as $value) {
    echo $value, PHP_EOL;
}

答案 2

试试这个 - (测试工作正常)

function createColumnsArray($end_column, $first_letters = '')
{
  $columns = array();
  $length = strlen($end_column);
  $letters = range('A', 'Z');

  // Iterate over 26 letters.
  foreach ($letters as $letter) {
      // Paste the $first_letters before the next.
      $column = $first_letters . $letter;

      // Add the column to the final array.
      $columns[] = $column;

      // If it was the end column that was added, return the columns.
      if ($column == $end_column)
          return $columns;
  }

  // Add the column children.
  foreach ($columns as $column) {
      // Don't itterate if the $end_column was already set in a previous itteration.
      // Stop iterating if you've reached the maximum character length.
      if (!in_array($end_column, $columns) && strlen($column) < $length) {
          $new_columns = createColumnsArray($end_column, $column);
          // Merge the new columns which were created with the final columns array.
          $columns = array_merge($columns, $new_columns);
      }
  }

  return $columns;
}
echo "<pre>";
print_r( createColumnsArray('BZ'));

http://php.net/range 复制


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