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php生成excel列名超过26列大于Z时的解决方法

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Release: 2016-06-06 20:15:15
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这篇文章主要介绍了php生成excel列名超过26列大于Z时的解决方法,是针对采用PHPExcel生成excel列数过多的情况下的完善技巧,具有一定的参考借鉴价值,需要的朋友可

本文实例讲述了php生成excel列名超过26列大于Z时的解决方法。分享给大家供大家参考。具体分析如下:

我们生成excel都会使用phpExcel类,这里就来给大家介绍在生成excel列名超过26列大于Z时的解决办法,这是phpExcel类中的方法,今天查到了,记录一下备忘,代码如下:

复制代码 代码如下:

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                 $_indexCache[$pColumnIndex] = chr(65 + $pColumnIndex); 
            } elseif ($pColumnIndex                 $_indexCache[$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]; 
}


将列的数字序号转成字母使用,代码如下:

复制代码 代码如下:

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 代码如下:

PHPExcel_Cell::columnIndexFromString('AA');

希望本文所述对大家的php程序设计有所帮助。

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