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. FILTER_
1. filterconfig PHP filter_var function Filter function
Introduction: filterconfig:filterconfig PHP filter_var function Filter function: filter_var() The 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
2. 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
3. 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)) { $id_
4. PHP function to verify whether the ID number is correct
Introduction: PHP function to verify whether the ID number is correct , the function code is as follows: function validation_filter_id_card($id_card){ if(strlen($id_card)==18){ return idcard_checksum18($id_card); }elseif((strlen($id_card)==15)){ $id_card=idcard_15to18 ($id_card)
5. 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
[Related Q&A recommendations]:
django - python sorting of null values deal with?
The above is the detailed content of Recommended articles about php filter_id() function. For more information, please follow other related articles on the PHP Chinese website!