doudilin1225 2018-10-25 05:48
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输出字符串的最后几个字符 - PHP / Yii

How do I output just the last 3 characters of docno below? This docno outputs a really long string of numbers, and I wanted to simplify it to make it look cleaner by just showing the last 3 digits.

Yii::$app->reporter->col((isset($data[0]['docno'])? $data[0]['docno']:''),'300',null,false,'1px solid ','','L','Helvetica','11','','','').'<br />';

Thanks.

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  • dtevhgk028372 2018-10-25 05:53
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    Use substr()

    As documentation said:

    If start is non-negative, the returned string will start at the start'th position in string, counting from zero. For instance, in the string 'abcdef', the character at position 0 is 'a', the character at position 2 is 'c', and so forth.

    If start is negative, the returned string will start at the start'th character from the end of string.

    So use negative value in second parameter

    $data[0]['docno'] = substr($data[0]['docno'], -3);
    

    Now use this in your Yii::$app->..... line

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