php生成excel列名，超过26列大于Z问题解决办法

我们生成excel都会使用phpExcel类了，下面我来给大家介绍在生成excel列名超过26列大于Z问题解决办法吧。

这是phpExcel类中的方法。今天查到了，记录一下备忘。

将列的数字序号转成字母使用：

 代码如下

代码如下

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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];     }

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代码如下	复制代码
PHPExcel_Cell::stringFromColumnIndex($i); // 从o开始

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];
    }

代码如下	复制代码
PHPExcel_Cell::columnIndexFromString(‘AA’);

 代码如下

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PHPExcel_Cell::stringFromColumnIndex($i); // 从o开始 将列的字母转成数字序号使用：

代码如下	复制代码
PHPExcel_Cell::columnIndexFromString(‘AA’);