HP通过链式操作将数据输出excel(csv)格式
CSV是一种通用的、相对简单的文件格式,被用户、商业和科学广泛应用。最广泛的应用是在程序之间转移表格数据,而这些程序本身是在不兼容的格式上进行操作的。现在我们来学习用PHP链式操作输出excel(csv)格式。
工作中经常会遇到产品运营让导出一些简单的比较规范的数据,这时候要是有一个简单的方法可以用就简单多了。下面是我的一个输出简单的excel(csv)的方法类,用到了链式操作。说到链式操作,在jquery中可能经常用到,是不是也感觉到链式操作用起来很爽,我们也在这个类中实现下链式操作。
其实链式操作很简单的,就是在前一个类方法最后返回一个该类的对象($this),提供给下一个方法调用。
代码如下 | 复制代码 |
class Array2csv{ /* *@var string $ext 扩展名 */ private $ext = 'csv'; /** * @desc构造方法 * @param string $filename 要输出的文件名 * @param string $ext 扩展名 */ public function __construct($filename,$ext=null){ ob_start(); header("Content-type: text/html;charset=utf-8"); header("Content-type: application/x-csv"); if(PHP_SAPI == 'cli') echo "CLI模式下不能导出csv文件r"; $this->ext = $ext === null ? $this->ext : $ext; header("Content-Disposition: attachment;filename=".$filename.".".$this->ext); ob_flush(); return $this; } /** * @desc 打印excel标题 * @param array $title 要输出的标题行 * @param object Array2csv 对象本身 */ public function title($title){ $title = implode(",", $title); echo $title."n"; return $this; } /** * @desc 打印一行excel内容 * @param array $body 要输出的内容 * @param object Array2csv 对象本身 */ public function body($body){ if(!is_array($body) || empty($body)) { return false; } $body = implode(",", $body); echo $body."n"; return $this; } /** * @desc 打印多行excel内容 * @param array $bodyArr 要输出的多行内容 * @param object Array2csv 对象本身 */ public function multiBody($bodyArr){ if(!is_array($bodyArr) || empty($bodyArr)) return false; foreach ($bodyArr as $key => $value) { if(is_array($value)){ $value = implode(",", $value); echo $value."n"; } } return $this; } } $test = new Array2csv('test'); $arr = array( array('luluyrt@163.com','奔跑的Man1','奔跑的userman'), array('luluyrt@163.com','奔跑的Man2','奔跑的userman'), array('luluyrt@163.com','奔跑的Man3','奔跑的userman'), array('luluyrt@163.com','奔跑的Man4','奔跑的userman'), array('luluyrt@163.com','奔跑的Man5','奔跑的userman'), array('luluyrt@163.com','奔跑的Man6','奔跑的userman') ); $test->title(array('测试','呵呵','哈哈'))->body(array('100,sadkl','sdsas','sdvsvdd分'))->multiBody($arr); |
输出的csv如下图所示:
但是这里面有个问题,从编码是utf-8的数据库中取出来的汉字输出excel(csv)会乱码,这个时候你要注意,要在获取数据之前设置数据库的编码,比如说我的需要的是utf-8进行输出,这个时候就要
$link = mysqli_connect($host, $user, $passwd, $db);
mysqli_query($link, "set names utf8");
进行编码转换方可正常显示,下面是我的数据库信息和编码前后效果:
数据库信息
设置数据库编码前后的对比

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