php - 电话号码与字母的正则表达式

Question

我需要将电话号码格式化为一长串数字(美国电话号码格式)

// I know there are tons more
$phones = array(
    '1(800) 555-1212',
    '1.800.555.1212',
    '800.555.1212',
    '1 800 555 1212',
    '1.800 CALL NOW' // 1 800 225-5669
);

foreach($phones as $phone) {
    echo "new format: ".(preg_replace("/[^0-9]/", "", $phone)."<br />\n";
}

现在应该返回如下内容:

8005551212 (with or without the 1)

但如何使用“立即调用”将号码映射/转换为:

18002255669

Answer 1

为了节省一些打字...

$phoneNumber = strtr($phoneLetters, "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "22233344455566677778889999");