10 recommended articles about php filter_input() function

I am new to PHP. I am working on a project recently, using ThinkPHP. I want to learn more deeply, so I deliberately studied the source code of ThinkPHP and took notes to record these easily forgotten things. Without further ado, let’s get started. Official website description: The I method is a new member of ThinkPHP's many single-letter functions. Its name comes from the English Input (input). It is mainly used to obtain system input variables more conveniently and safely. It can be used anywhere. The usage format is as follows: I ('Variable type. Variable name', ['Default value'], ['Filter method']) Variable type refers to the request method or input type, including: Variable type meaning get gets GET parameters post gets POST parameters param automatically determines the request Type gets GET, POST or PUT parameter request gets REQUEST parameter put gets PUT parameter session gets $_SESSION parameter cookie gets $_COOKIE parameter server gets $_SERVER parameter globals gets $GLOBALS parameter Note:

1. ThinkPHP source code learning I method

Introduction:: This article mainly introduces the I method of ThinkPHP source code learning. Students who are interested in PHP tutorials can refer to it.

2. Comma-separated value file php processing method with comma thousands digits

Introduction: comma-separated Value file: comma-separated value file php. How to process numbers with commas: usually use number_format(); to format numbers. By default, thousands of characters are separated by commas, for example: Copy the code as follows: echo number_format( "10000.01231", 2); //Take 2 digits after the decimal point, and the output result is: 10,000.01. Thousands are separated by commas by default. It would be a bit laborious if we verify the numbers in this format obtained from the client in the background. Veteran practitioners usually use filter_input(INPUT_POST,"price

3. Dont stop til you get enough 10 Advanced PHP Tips [Revised Edition]

Introduction: Dont stop til you get enough:Dont stop til you get enough 10 Advanced PHP Tips [Revised Edition]: 1. Use a SQL Injection Cheat Sheet A basic principle is, never believe it User-submitted data. Another rule is to escape data when you send or store it. This can be summarized as: filter input, escape output (FIEO). Input filtering, output escape usually results in SQL injection. The cause of the vulnerability is that the input is not filtered, as shown in the following statement: Copy the code as follows:

##4. 10 Advanced PHP Tips

Introduction:: 10 Advanced PHP Tips: 1. Use a SQL Injection Cheat Sheet One basic rule is, never trust user-submitted data. Another rule is, before you send or. Escape the data when storing it. It can be summarized as: filter input, escape output (FIEO). The common cause of SQL injection vulnerabilities is that the input is not filtered, as shown in the following statement: Copy The code is as follows:

5. php filter_input function_PHP tutorial

Introduction: php filter_input function. In PHP tutorial 5.2, the filter module is built-in for variable verification and filtering. For operations such as filtering variables, please refer to what I originally mentioned. Here we look at how to directly filter user input

6. php filter_input_array Filter illegal information_PHP tutorial

##Introduction: php filter_input_array Filter illegal information Definition. And Usage The filter_input_array() function gets multiple filters from external input scripts and filters them. This function is useful for filtering large number of input variables without requiring filter

##7.

php filter_input filter function example tutorial_PHP tutorial

Introduction: php filter_input filter function example tutorial. Definition and Usage The filter_input() function gets the input filter from an external script and filters it. This function is used to validate variable forms from unsafe sources, such as user input.

8.

Usage analysis of filter_input function in php, phpfilter_input_PHP tutorial

Introduction: Usage analysis of filter_input function in php, phpfilter_input. Analysis of the usage of filter_input function in php, phpfilter_input This article analyzes the usage of filter_input function in php with examples. Share it with everyone for your reference. The specific analysis is as follows: In php5.2, internal

9. php study notes--Introduction to filter

:filter_var(): Filter a single variable through a specified filter filter_var(variable, filter, options): variable is required, filter is optional, and options specifies an array containing flag options. Check the possible flags and options for each filter

10. 10 Advanced PHP Development Tips

Introduction: 10 Advanced PHP Development Tips 10 advanced PHP tips to improve your PHP efficiency.​ 1. Use a SQL Injection Cheat Sheet A basic rule of thumb is to never trust user-submitted data. Another rule is to escape data when you send or store it. It can be summarized as: filter input, escape output (FIEO). Input filtering, output escape. Usually the cause of SQL injection vulnerabilities is that the input is not filtered, as follows

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