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如何讓他超過字數再點點點?以下是我寫的假象：
mb_substr("1234567890",0,5,"utf-8");echo '...';
此時會變成12345...這沒問題
但是當沒有超過時也會顯示點點點
mb_substr("1234567890",0,15,"utf-8");echo '...';
1234567890...
網上查的mb_substr函數都只有介紹顯示指定的字數但我沒有找到怎麼樣設條件..就是超過我設定的顯示字數再點點點
人生最曼妙的风景，竟是内心的淡定与从容！
加个判断吧
$text = '123456'; $charLength = 10; //字符串长度 $content = mb_strlen($text, 'UTF-8') <= $charLength ? $text : mb_substr($text, 0,$charLength,'UTF-8') . '...';
只能自己加个判断
function my_substr($str, $start = 0, $length = 0, $encoding = 'utf-8') { return (mb_strlen($str) >= ($length - $start)) ? (mb_substr($str, $start, $length, $encoding).'...') : $str; }
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
加个判断吧
只能自己加个判断