本文實例講述了php生成excel列名超過26列大于Z時的解決方法。分享給大家供大家參考。具體分析如下：
我們生成excel都會使用phpExcel類,這里就來給大家介紹在生成excel列名超過26列大于Z時的解決辦法,這是phpExcel類中的方法,今天查到了,記錄一下備忘,代碼如下:
復制代碼代碼如下:
public static function stringFromColumnIndex($pColumnIndex = 0)
{
// Using a lookup cache adds a slight memory overhead, but boosts speed
// caching using a static within the method is faster than a class static,
// though it's additional memory overhead
static $_indexCache = array();
if (!isset($_indexCache[$pColumnIndex])) {
// Determine column string
if ($pColumnIndex < 26) {
$_indexCache[$pColumnIndex] = chr(65 + $pColumnIndex);
} elseif ($pColumnIndex < 702) {
$_indexCache[$pColumnIndex] = chr(64 + ($pColumnIndex / 26)) . chr(65 + $pColumnIndex % 26);
} else {
$_indexCache[$pColumnIndex] = chr(64 + (($pColumnIndex - 26) / 676)) . chr(65 + ((($pColumnIndex - 26) % 676) / 26)) . chr(65 + $pColumnIndex % 26);
}
}
return $_indexCache[$pColumnIndex];
}
{
// Using a lookup cache adds a slight memory overhead, but boosts speed
// caching using a static within the method is faster than a class static,
// though it's additional memory overhead
static $_indexCache = array();
if (!isset($_indexCache[$pColumnIndex])) {
// Determine column string
if ($pColumnIndex < 26) {
$_indexCache[$pColumnIndex] = chr(65 + $pColumnIndex);
} elseif ($pColumnIndex < 702) {
$_indexCache[$pColumnIndex] = chr(64 + ($pColumnIndex / 26)) . chr(65 + $pColumnIndex % 26);
} else {
$_indexCache[$pColumnIndex] = chr(64 + (($pColumnIndex - 26) / 676)) . chr(65 + ((($pColumnIndex - 26) % 676) / 26)) . chr(65 + $pColumnIndex % 26);
}
}
return $_indexCache[$pColumnIndex];
}
將列的數字序號轉成字母使用,代碼如下:
復制代碼代碼如下:
PHPExcel_Cell::stringFromColumnIndex($i); // 從o開始
將列的字母轉成數字序號使用,代碼如下:
復制代碼代碼如下:
PHPExcel_Cell::columnIndexFromString('AA');
希望本文所述對大家的php程序設計有所幫助。
