Home  >  Article  >  Backend Development  >  10 recommended articles about php filter_var() function

10 recommended articles about php filter_var() function

怪我咯
怪我咯Original
2017-06-11 17:38:571232browse

filter_var() function filters variables through the specified filter. Returns filtered data if successful, false if failed. Syntax filter_var(variable, filter, options)variable: required. Specifies the variables to filter. filter: optional. Specifies the ID of the filter to use. (See FiltersID list below) options: Specifies an array containing flags/options. Check the possible flags and options for each filter. Copy the code The code is as follows: FiltersID name: Description FILTER_CALLBACK: Call a user-defined function to filter data. FILTER_SANITIZE_STRING: Remove tags, remove or encode special characters. FILTER_SANITIZE_STRIPPED: Alias ​​for "string" filter. FILTER_SANITIZE_ENCODED: URL-encode string, remove or encode special words

1. filter_id function definition and usage summary

10 recommended articles about php filter_var() function

Introduction: The filter_var() function filters variables through the specified filter. Returns filtered data if successful, false if failed. Syntax filter_var(variable, filter, options)variable: required. Specifies the variables to filter. filter: optional. Specifies the ID of the filter to use. (See FiltersID list below) options: Specifies an array containing flags/options. Check each filter for possible flags and...

2. Recommended articles about php filter_id() function

10 recommended articles about php filter_var() function

#Introduction: The filter_var() function filters variables through the specified filter. Returns filtered data if successful, false if failed. Syntax filter_var(variable, filter, options)variable: required. Specifies the variables to filter. filter: optional. Specifies the ID of the filter to use. (See FiltersID list below) options: Specifies an array containing flags/options. Check each filter for possible flags and...

3. filter_var php

Introduction::this This article mainly introduces filter_var php. Students who are interested in PHP tutorials can refer to it.

4. filterconfig PHP filter_var function Filter function

Introduction: filterconfig:filterconfig PHP filter_var function Filter function: filter_var () function filters variables through the specified filter. Returns filtered data if successful, false if failed. Syntax filter_var(variable, filter, options)variable: required. Specifies the variables to filter. filter: optional. Specifies the ID of the filter to use. (See FiltersID list below) options: Specifies an array containing flags/options. Check each filter possible

5. PHP filter_var() Function Filter Function_PHP Tutorial

Introduction: PHP filter_var() function Filter function. The filter_var() function filters variables through a specified filter. Returns filtered data if successful, false if failed. Syntax filter_var(variable, filter, options

##6. php Get the regular number of numbers in a string_PHP tutorial

Introduction: PHP gets regular numbers in strings. The filter_sanitize_number_int filter removes all illegal characters in numbers. This filter allows all numbers and +-. */ $number=5-2+3pp; var_dump(filter_var($number, filter_sanit)

7. PHP filter_var() function_PHP tutorial

Introduction: PHP filter_var() function php tutorial. Filter Introduction PHP filters are used to validate and filter data from non-secure sources (such as user input). Installing the filter function is an integral part of PHP core.

##8.

php FILTER_VALIDATE_FLOAT Floating point number verification_PHP tutorial

Introduction: php FILTER_VALIDATE_FLOAT floating point number verification. filter_validate_float filter validates values ​​as floats. */ $var=12.3; var_dump(filter_var($var, filter_validate_float)); //float(12.3) /* Non-negative floating point number (positive floating point number+

9. php filter_var filters the specified data_PHP tutorial

Introduction: php filter_var filters the specified data. Definition and usage The filter_var () function filters the filter specified by a variable. Returns the success of filtering data or the failure of FALSE. Syntax filter_var(variable, filter, opti

##10. PHP filter_var_array Example Tutorial_PHP Tutorial

Introduction: PHP filter_var_array Example Tutorial. Definition and Usage The filter_var_array() function obtains multiple variables and selects a filter for them. This function is useful for filtering many values ​​without requiring filter_var(), and more. . Return to

【Related Q&A recommendations】:

php bug in calculating network address

The above is the detailed content of 10 recommended articles about php filter_var() function. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn