What are the specific application scenarios of the `phone2numeric` filter in AnQiCMS?

In AnQiCMS template engine, there are many powerful filters built-in, which can help us handle and display data in a flexible way. Among them,phone2numericFilter is a niche tool that can play a unique role in specific scenarios. Its main function is to convert the corresponding letters on the mobile phone's numeric keypad to numbers.

To understandphone2numericThe application scenarios, we first need to understand how it works. On the traditional mobile phone numeric keypad, each digit key, except for 0 and 1, corresponds to several English letters:

• 2 Corresponds to A, B, C
• 3 Corresponds to D, E, F
• 4 Corresponds to G, H, I
• 5 Corresponds to J, K, L
• 6 Corresponds to M, N, O
• 7 Corresponds to P, Q, R, S
• 8 Corresponds to T, U, V
• 9 Corresponds to W, X, Y, Z

phone2numericThe filter is based on this set of transformation rules, converting a text containing these letters into a purely numeric form.For example, after processing the string “999-PONGO2” through this filter, it will result in “999-766462”.For numbers and non-alphabetic characters, the filter will keep them unchanged.

What are the specific practical scenarios of this seemingly simple feature in our website content operation?

1. Personalized contact information display and convenient dialing

Many companies or brands prefer to design their contact phone numbers as easy-to-remember letter combinations, such as '400-ANQICMS' or '010-CALLNOW'.These letter combinations have both brand recognition and are easy for users to remember.However, when users want to dial these numbers directly, they need to manually convert letters to numbers, which undoubtedly increases the complexity of the operation.

This is,phone2numericThe filter comes in handy. In the AnQiCMS template, we can keep the contact phone number displayed to the user in alphabetical form, for example:

拨打客服热线：<span>400-ANQICMS</span>

while the actual dialing link (tel:协议）中，则可以使用phone2numeric过滤器将其转换为纯数字，实现一键拨号：

<a href="tel:{{ '400-ANQICMS'|phone2numeric }}">点击拨打：400-ANQICMS</a>

Thus, the user visually sees an easy-to-remember brand phone number, and can directly dial the correct number when clicked, greatly enhancing the user experience.

2. Improve user search experience

Users may enter phone numbers containing letters or keywords related to the numeric keypad when searching for information within the website, based on their memory or habits.For example, if a user wants to search for the customer service phone number of AnQiCMS, he may enter ”AnQiCMS Customer Service Phone” or ”AnQiCMS SUPPORT”.If our content only stores pure numeric phone numbers, direct matching will be difficult to succeed.

Passphone2numericFilter, we can preprocess the user's search query, converting the letters to numbers, and then matching them with the pure numeric phone numbers in the website content.This can effectively broaden the search results, helping users find the information they need, even if they enter non-exact numeric codes.

For example, in the search template, we can apply this filter when handling search keywords:

{% set search_query_numeric = urlParams.q|phone2numeric %}

Then usesearch_query_numericMatch content containing numeric phone numbers, or perform the corresponding conversion in the background search logic.

3. Data Standardization and Processing

In some business scenarios, we may need to collect users' phone numbers or other information containing keyboard letter combinations.Since user input habits vary, inputs such as '138-MY-PHONE' may occur.To ensure the uniformity of data, facilitate subsequent verification, storage, or integration with third-party systems (such as CRM), we need to convert these non-standard formats to pure numbers.

Althoughphone2numericThe filter is mainly used for template output, but the provided conversion logic can be previewed in the frontend or executed in specific JavaScript logic to assist in user input validation.The backend can also standardize the data received in this manner according to the same logic.For example, before submitting a message board or form, you can first convert the user's input phone number to this format, and then perform validations for length and format.

4. Marketing Activities and Memory Point Enhancement

In the marketing pages built with AnQiCMS, we can flexibly display this information. For example, highlighting the letter-form phone number on the page, and providing a经过phone2numericConverted to a numeric form.

您专属的汽车服务热线：<span>227-DEAL</span> (实际拨打: {{ '227-DEAL'|phone2numeric }})

This method ensures the practicality of phone numbers without sacrificing memorability.

In short,phone2numericThe filter provides AnQiCMS users with a delicate and practical tool that cleverly connects the alphabetical expression of human habits with the digital format of machine recognition, thereby enhancing the overall user experience and operational efficiency of the website in multiple dimensions such as personalized display, search optimization, data processing, and marketing communication.

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Common Questions (FAQ)

Q1:phone2numericDoes the filter handle all characters?A1:phone2numericFilter mainly converts English letters (case insensitive).除A-Z之外的数字、符号（如连字符-）或中文字符，都会被原样保留，不会被转换。

Q2: Usephone2numericWill the filter change the original data I stored in the background?A2: No.phone2numericis a template filter that only temporarily processes the data when the content is output to the front-end page, without modifying the original data stored in the AnQiCMS backend database.This means that your original data remains unchanged, and the filter only affects its display in a specific template.

Q3: I can use which AnQiCMS features in combinationphone2numericFilter?A3: You can use it anywhere that supports AnQiCMS template syntax. Common combination scenarios include:

• Contact Information Label (contact): Get the contact phone number set in the background and convert it to,{{ contact.Cellphone|phone2numeric }}.
• Custom fieldsIf your content model contains custom phone fields that need to be converted, you can directly filter the field values.
• Search results page：Processing search keywords or specific fields in search results to optimize search matching.
• [en]Single-page content (pageDetail)：Real-time conversion and display of content containing letters and numbers on a single page.