Summary of filter_id function definition and usage

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 characters

1. Recommended articles about php filter_id() 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. 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

3. ID number PHP ID number verification function

Introduction: Identity ID number: ID number PHP ID number verification function: Copy the code as follows: function validation_filter_id_card($id_card) { if(strlen($id_card) == 18) { return idcard_checksum18($id_card); } elseif((strlen( $id_card) == 15)) { $id_card = idcard_15to18($id_card); retur

4. PHP ID number verification function_PHP tutorial

Introduction: PHP ID number verification function. Copy the code as follows: function validation_filter_id_card($id_card) { if(strlen($id_card) == 18) { return idcard_checksum18($id_card); } elseif((strlen($id_card) == 15)) { $id_

5. PHP function to verify whether the ID number is correct

Introduction: PHP function to verify whether the ID number is correct , the function code is as follows: function validation_filter_id_card($id_card){ if(strlen($id_card)==18){ return idcard_checksum18($id_card); }elseif((strlen($id_card)==15)){ $id_card=idcard_15to18 ($id_card)

6. PHP implements ID verification function

Introduction: Welcome to the Linux Community Forum, Interact and communicate with 2 million technical staff> Enter PHP to implement the ID verification function function validation_filter_id_card ($id_card) { if (strlen ($id_card) == 18) { return idcard_checksum18 ($id_card); } elseif ((strlen ( $id_card) == 15)) { $i

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