How to format data in yii2

yii\i18n\Formatter is a small formatting assistant, which is very helpful for us to achieve user-friendly display on the front end.

1. Commonly used attributes

(1)$dateFormat

Date format: yyyy-MM-dd, or "short", "medium ", "long", or "full"

（2）$datetimeFormat

Specific time format: yyyy-MM-dd HH:mm:ss

（3） $locale

Regional location, if not set, yii\base\Application::$language will be used, and the format will be displayed according to the customary display format of this region

(4)$defaultTimeZone

Time zone, default UTC

To use formatter, you need to configure it in config:

'formatter' => [
    'dateFormat' => 'yyyy-MM-dd',
    'datetimeFormat' => 'yyyy-MM-dd HH:mm:ss',
    'decimalSeparator' => ',',
    'thousandSeparator' => ' ',
    'currencyCode' => 'CNY',
],

2. Formatting

echo Yii::$app->formatter->asRelativeTime(1463632983).&#39;<br/>&#39;; // 几天前 几小时前
echo Yii::$app->formatter->asDatetime(1463606983).&#39;<br>&#39;;  // 2015-6-16 11:51:43
echo Yii::$app->formatter->asDatetime(&#39;now&#39;).&#39;<br>&#39;;
// 也可处理null值的输出显示:
echo Yii::$app->formatter->asDate(null).&#39;<br>&#39;; // 输出: (未设置)  
echo Yii::$app->formatter->asPercent(0.125, 2).&#39;<br>&#39;; // 输出: 12.50%
echo Yii::$app->formatter->asTimestamp(&#39;now&#39;).&#39;<br>&#39;;//输出时间戳
echo Yii::$app->formatter->asTime(1412599260).&#39;<br>&#39;; // 14:41:00
echo Yii::$app->formatter->asTime(&#39;2014-10-06 12:41:00&#39;).&#39;<br>&#39;; // 14:41:00
echo Yii::$app->formatter->asTime(&#39;2014-10-06 14:41:00 CEST&#39;).&#39;<br>&#39;; // 14:41:00
echo Yii::$app->formatter->asRaw(1463606983).&#39;<br>&#39;;//简单输出输入值
echo Yii::$app->formatter->asText(&#39;<h3>hello</h3>&#39;).&#39;<br>&#39;;//将字符串中html标签当做字符串输出
echo Yii::$app->formatter->asHtml(&#39;<h3>hello</h3>&#39;).&#39;<br>&#39;;//作为Html的文档输出
echo Yii::$app->formatter->asNtext("<h3>hello.\nword</h3>").&#39;<br>&#39;;//在字符串中遇到\n可以将它作为换行符实现
echo Yii::$app->formatter->asEmail(&#39;cebe@example.com&#39;).&#39;<br>&#39;;// 输出: <a href="mailto:cebe@example.com">
cebe@example.com</a>
echo Yii::$app->formatter->asParagraphs(&#39;hello&#39;).&#39;<br>&#39;;// 值会转换成HTML编码的文本段落，用<p>标签包裹；
echo Yii::$app->formatter->asUrl(&#39;www.baidu.com&#39;).&#39;<br>&#39;;//值会格式化成url的连接
echo Yii::$app->formatter->asImage(&#39;my2.jpeg&#39;,[&#39;alt&#39;=>&#39;图片无法显示&#39;]).&#39;<br>&#39;;//图片的链接会转化成<img src=
&#39;my.jpg&#39;/>
echo Yii::$app->formatter->asBoolean(true).&#39;<br>&#39;;//输出yes

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