How to intercept Chinese string without garbled characters in PHP

Use the PHP built-in method mb_substr to intercept Chinese without garbled characters. It is very simple to use.

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The mb_substr method has one more parameter than substr, which is used to specify the string encoding.
utf-8 encoding interception example

$str = '我like laravel or yii2';
echo mb_substr($str, 0, 2, 'utf8'); //输出 我I

There is no problem in mixing Chinese and English.

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When using, pay attention to the encoding of the php file and the encoding when displaying the web page.

To use this mb_substr method, you need to know the encoding of the string in advance. If you don't know the encoding, you need to judge. The mbstring library also provides mb_check_encoding to check the string encoding, but it is not perfect yet.

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