隐藏手机号中间四位，包含其它字符 --- 2018-05-11

//隐藏手机中间几位

public function hidtel($phone){

$IsWhat = preg_match('/(0[0-9]{2,3}[\-]?[2-9][0-9]{6,7}[\-]?[0-9]?)/i',$phone);

if($IsWhat == 1){

return preg_replace('/(0[0-9]{2,3}[\-]?[2-9])[0-9]{3,4}([0-9]{3}[\-]?[0-9]?)/i','$1****$2',$phone);

}else{

return  preg_replace('/(1[0-9]{1}[0-9])[0-9]{4}([0-9]{4})/i','$1****$2',$phone);

}

}

特殊排班格式手机号

$str ='¹³⁷⁵⁹⁵⁶²²²²';

function hide_repalce($str, $code='utf-8') {

    mb_internal_encoding($code);

    $len = mb_strlen($str);

    return mb_substr($str, 0, 4) . str_repeat('*', $len - 7) . mb_substr($str, $len - 3, 3);

}

echo hide_repalce($str);exit;