How to verify mobile phone number carrier type with PHP regular expression

In modern society, most people have their own mobile phones, and phone numbers have gradually become one of people's important identity information. And for developers, validating the format and carrier type of a mobile number in a website or application is a common task. In this article, we will explore how to use PHP regular expressions to verify the carrier type of a mobile phone number.

In China, there are currently three major mobile phone operators: China Mobile, China Unicom and China Telecom. Each of them has different number segments, as well as a specific carrier identification code (MNC) and mobile country code (MCC), which are important factors in verifying the type of carrier of a mobile number.

To verify the carrier type of a mobile phone number, we need to use PHP regular expressions to match the number segment, MNC and MCC. The following is the PHP regular expression code to verify the mobile phone numbers of China's three major operators:

// 中国移动号码段验证
if (preg_match('/^((13[4-9]|147|15[0-2,7-9]|178|18[2-4,7-8])d{8})$/', $phone_number)) {
    $operator = '中国移动';
}

// 中国联通号码段验证
if (preg_match('/^((13[0-2]|145|15[5-6]|166|17[5-6]|18[5-6])d{8})$/', $phone_number)) {
    $operator = '中国联通';
}

// 中国电信号码段验证
if (preg_match('/^((133|149|153|17[3-4]|173|177|18[0-1,9])d{8})$/', $phone_number)) {
    $operator = '中国电信';
}

Let's take a look at the analysis of this code:

For China Mobile, the number segment is 134 , 135, 136, 137, 138, 139, 147, 150, 151, 152, 157, 158, 159, 178, 182, 183, 184, 187, 188, some of the numbers. According to MNC and MCC, their number structure is: the first three digits are fixed to 134-139 or 147-148 or 150-152, 157-159 or 178, 182-184 or 187-188, and the last eight digits are any number.

For China Unicom, its number segments are part of 130, 131, 132, 145, 155, 156, 166, 171, 176, 185, and 186. Different from China Mobile, the first three digits of China Unicom's number structure are 130-132 or 145 or 155-156 or 166, 171-172 or 175-176 or 185-186, and the last eight digits are any numbers.

For China Telecom, the number segments are part of 133, 149, 153, 173, 177, 180, 181, and 189. The number structure is that the first three digits are fixed as part of 133, 149, 153, 173, 177, 180, 181, 189, and the last eight digits are any number.

By using PHP regular expressions to verify the number segment, MNC and MCC, we can determine the type of operator the mobile phone number belongs to, and thus implement different functions through programs. For example, different services can be provided to users of different operators, or discount coupons can be provided to China Unicom users.

In summary, using PHP regular expressions to verify the carrier type of a mobile phone number is a very useful skill. Through the above example code, we can easily implement this function and provide users with better services.

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