How to replace spaces, newline characters, Chinese commas, etc., with English commas in PHP regular expressions

This article introduces the knowledge of "how to replace spaces, newline characters, Chinese commas and so on with English commas in PHP regular expressions. In the operation of practical cases, many people will encounter such a dilemma. Then let the editor lead you to learn how to deal with these situations." I hope you can read it carefully and be able to achieve something!

In the process of development, you often encounter things that need to provide someone with an input box, and then enter some ID or keywords, such as the tag input box in the background of wordpress:

This is just to judge the comma in English. What if someone accidentally enters a comma in Chinese? What about the decimal point?

So I wrote an expression in regular, replacing something with a space newline or something like a comma.

Replace the submitted id with a comma, such as a space newline, and then switch to an array with the explode function.

The copy code is as follows:

$ids=$_POST ["ID"]

$id= preg_replace ("/ (\ n) | (\ s) | (\ t) | (\') | (') | (,) /",',', $ids)

$topicids = explode (",", $tids)

This is a filter with a decimal point added.

The copy code is as follows:

$ids = preg_replace ("/ (\ n) | (\ s) | (\ t) | (\') | (') | (,) | (\.) /",',', $ids)

OK, after this treatment, there will be no problem.

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