例如:
$str = "这样abcd一来";
echo "mb_substr:".mb_substr($str, 0, 5, 'utf-8');
echo "
";
echo "mb_strcut:".mb_strcut($str, 0, 8, 'utf-8');
?>
输出结果如下:
mb_substr: 这样abc
mb_strcut: 这样ab
0
0
0
0
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