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php手机号码中间四位隐藏的方法:使用【substr_replace】代替方法,替换字符串的子串,代码为【$num = "12345678910" $str = substr_replace($num,'****',3,4)】。
php手机号码中间四位隐藏的方法:
使用substr_replace代替方法:
$num = "12345678910" $str = substr_replace($num,'****',3,4);
三种实现方式
结果: > string(11) "123****8910" > string(11) "123****8910" > string(11) "123****8910"
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