是否可以使用 PHP 获得从 A 到 ZZ* 的范围？
a b c ... aa ... zx zy zz
对我来说这不起作用：
range('A', 'ZZ');
它适用于 PHPExcel，当它给出 BE 作为最高字段时，我会遍历所有列。在这种情况下我只得到 A，B:
range ('A', 'BE')
利用 PHP “perl 风格”增加字符的能力
$letters = array();
$letter = 'A';
while ($letter !== 'AAA') {
$letters[] = $letter++;
}
但是您也可以使用简单的整数值，并利用 PHPExcel 的内置 PHPExcel_Cell::stringFromColumnIndex() 方法
编辑
从 PHP 5.5 开始，您还可以使用生成器来避免在内存中实际构建数组
function excelColumnRange($lower, $upper) {
++$upper;
for ($i = $lower; $i !== $upper; ++$i) {
yield $i;
}
}
foreach (excelColumnRange('A', 'ZZ') as $value) {
echo $value, PHP_EOL;
}
试试这个-（测试工作正常）
function createColumnsArray($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 $columns;
}
echo "<pre>";
print_r( createColumnsArray('BZ'));
for ($i = 'A'; $i !== 'AC'; $i++){
echo $i.', '; //A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, AA, AB,
}
正在工作
您可以组合两个 foreach 循环来生成类似的东西。
// Single letters
foreach(range('A', 'Z') as $letter) {
echo $letter;
}
// AA-ZZ combinations
foreach(range('A', 'Z') as $letter1) {
foreach(range('A', 'Z') as $letter2) {
echo $letter1 . $letter2;
}
}
range添加了对字符序列和递减数组的支持 4.1.0。字符序列值的长度限制为 1。如果输入的长度大于 1，则仅使用第一个字符。
但是，本质上，您在这里所做的是在使用 26 位数字
az09apaz更好的选择（效果很好）
for ($i = 'a'; $i < 'zz'; $i++)
echo $i."<br>";
您当然可以编写自己的函数来执行此操作，因为 php 中的 range() 函数似乎不支持此功能。这应该是一项简单的工作，因为您可以将范围函数嵌套在另一个循环中。像这样的东西：
foreach(range('a', 'z') as $outer) {
foreach(range('a', 'z') as $inner) {
print($outer.$inner);
}
}
请检查这个简单的解决方案递增字符。
如何在 PHP 中从 A 到 Z 列出，然后依次列出 AA、AB、AC 等
使用此递归函数获得从 A 到 ZZ 的精确范围
function myRange($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) {
$new_columns = myRange($end_column, $column);
// Merge the new columns which were created with the final columns array.
$columns = array_merge($columns, $new_columns);
}
}
return $columns;
}
调用类似函数。
print_r(myRange('ZZ'));
会给你结果
A 乙 C 。 。 。 中兴 ZY ZZ
这是一个简化的解决方案，您可以在其中定义要生成的行数和列数。这样您将分配更少的内存。
// Get cell names for excel
function generate_excel_cell_names($row_cnt, $col_cnt){
$excel_cells = [];
// Note: Row and col indexes are starting from 1
for ($excel_row=1; $excel_row <= $row_cnt; $excel_row++) {
$excel_col = 'A';
for ($col_index = 1; $col_index <= $col_cnt; $col_index++)
{
$excel_cells[$excel_row][$col_index] = $excel_col.$excel_row;
$excel_col++;
}
}
return $excel_cells;
}
这对我来说效果很好。
function create_columns_range($start = 'A', $end = 'ZZ'){
$return_range = [];
for ($i = $start; $i !== $end; $i++){
$return_range[] = $i;
}
return $return_range;
}
要使用它，只需致电：
$range = create_columns_range('A', 'ZZ');
print_r(range);
如果您不知道必须收到哪封信，但您知道长度：
$max = 200;
for ($l = 'A', $i = 0; $i < $max; $l++, $i++) {
$letters[] = $l;
}
echo $letters;
$arr = [];
foreach (range('A', 'Z') as $alphabeta) {
$arr[] = $alphabeta;
}
foreach ($arr as $key => $val) {
foreach (range('A', 'Z') as $alphabetb) {
$arr[] = $arr[$key] . $alphabetb;
}
}
print_r($arr);
使用此代码...
$extra_alpha1= range('A', 'Z');
$extra_alpha=array("AA","AB","AC","AD","AE","AF","AG","AH","AI","AJ","AK","AL","AM","AN","AO","AP","AQ","AR","AS","AT","AU","AV","AW","AX","AY","AZ");
$alphabetArray=array_merge($extra_alpha1,$extra_alpha);
我使用 alpha2num() 将 alpha 转换为数字，然后在循环中使用它。这样我就可以使用任何开始和结束值来获取范围。
// to convert alpha to number
function alpha2num($a) {
$l = strlen($a);
$n = 0;
for($i = 0; $i < $l; $i++)
$n = $n*26 + ord($a[$i]) - 0x40;
return $n-1;
}
// to convert number back to alpha
function num2alpha($n)
{
for($r = ""; $n >= 0; $n = intval($n / 26) - 1)
$r = chr($n%26 + 0x41) . $r;
return $r;
}
function get_range($start_column, $end_column)
{
$s = alpha2num($start_column); // get start number
$e = alpha2num($end_column); // get end num
$columns = array();
// loop from start to end and change back the number to alpha to be stored in array
for($i=$s; $i<=$e; $i++)
$columns[] = num2alpha($i);
return $columns;
}
// usage
$columns = get_range('Z', 'BA'));
$atoz = range('A', 'Z');
$target = range('A', 'Z');
$result = $atoz;
foreach ($target as $val) {
$step = array_map(function ($elem) use ($val) {
return $val. $elem;
}, $atoz);
$result = array_merge($result, $step);
}
$abc = [];
foreach(range('A', 'Z') as $first) {
array_push($abc, $first);
}
foreach(range('A', 'Z') as $second) {
foreach(range('A', 'Z') as $third) {
array_push($abc, $second.$third);
}
}
$headers = ['CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO', 'CAMPO'];
foreach($headers as $key => $value) {
echo $abc[$key] . ' - ' . $value . PHP_EOL;
}
$alfabet=["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z","AA","AB","AC","AD","AE","AF","AG","AH","AI","AJ","AK","AL","AM","AN","AO","AP","AQ","AR","AS","AT","AU","AV","AW","AX","AY","AZ","BA","BB","BC","BD","BE","BF","BG","BH","BI","BJ","BK","BL","BM","BN","BO","BP","BQ","BR","BS","BT","BU","BV","BW","BX","BY","BZ","CA","CB","CC","CD","CE","CF","CG","CH","CI","CJ","CK","CL","CM","CN","CO","CP","CQ","CR","CS","CT","CU","CV","CW","CX","CY","CZ","DA","DB","DD","DD","DE","DF","DG","DH","DI","DJ","DK","DL","DM","DN","DO","DP","DQ","DR","DS","DT","DU","DV","DW","DX","DY","DZ"];
$active_row_value_fulladdress = "AA - AM";
//$active_row_value_fulladdress = "A - F";
$taken_full = strtoupper($active_row_value_fulladdress);
$taken_full_ar = explode("-", $taken_full);
$start = trim($taken_full_ar[0]);
$end = trim($taken_full_ar[1]);
$alfabet_key = array_flip($alfabet);
$start1 = $alfabet_key[$start];
$end1 = $alfabet_key[$end];
for($i=$start1;$i<=$end1;$i++)
{
$taken_full_array[]=$alfabet[$i];
}
foreach ($taken_full_array as $key => $value)
{
$full_add[]=array_search($value,$alfabet);
}
echo "<pre>";
print_r($taken_full_array);
print_r($full_add);