How to escape a string in php

This article mainly explains "how to escape a string in php". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to escape a string in php.

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In the process of PHP programming, we often encounter this problem, which may cause some problems when inserting data into the database, such as errors or garbled codes. This is because the database interprets the characters in the incoming data as control characters. To solve this problem, it is necessary to use a token or escape these special characters.

Special techniques are provided in PHP to deal with these problems. There are two ways to escape and restore strings, one is to escape and restore strings manually, and the other is to automatically escape and restore strings.

Method 1: manually escape and restore the string

Strings can use single quotation marks'', double quotation marks'', and delimiters

The running results are as follows:

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