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13 Jul 2016
PHP form sensitive character filtering class, PHP form filtering. PHP form sensitive character filtering class, PHP form filtering This article describes the PHP form sensitive character filtering class and its usage with examples. Share it with everyone for your reference. The specific analysis is as follows: Copy code
14 Jul 2017
The so-called sensitive characters refer to articles that contain unhealthy or reactionary information that affects society, and will be regarded as sensitive characters. Because sometimes the sensitive characters entered by the user will invisibly affect the correct execution of the program, the famous database injection attack is to add database control instructions to the query conditions, thereby achieving the attacker's purpose.
PHP form filtering: sensitive word filtering and replacement
09 Aug 2023
PHP form filtering: sensitive word filtering and replacement In the process of developing web applications, we often need to filter and clean the data submitted by users to protect the security of the website and the privacy of the users. Among them, filtering and replacing sensitive words is a very important task. This article will introduce how to use PHP to filter and replace sensitive words, and provide corresponding code examples. The principle of sensitive word filtering and replacement. Sensitive word filtering and replacement refers to detecting sensitive words contained in the data submitted by users and replacing them with specified words.
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PHP Chinese character to Pinyin source code (GB2312 class library, supports about 6000 Chinese characters)
PHP form filtering: HTML tags and special character filtering
09 Aug 2023
PHP form filtering: HTML tags and special character filtering In web development, forms are an important way for users to interact with the website. However, bad users may abuse the form to submit malicious code, posing a threat to the security of the website. In order to ensure the security of user input data, we need to filter form input. This article will focus on how to use PHP to filter HTML tags and special characters to prevent XSS attacks and other security issues. 1. Filter HTML tags using strip_tags function str
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