In this article, we will learn How to get the names of all functions present in a module in PHP.
What is a module in PHP ?
A module is a collection of independent software components. The usage of modules in program improves the code reusability and encapsulation. Module contains functions that we can use these functions by including the module in our code. Now we are going to print all the functions present in a given module.
How to get the names of all functions of a module in PHP ?
To get the names of all functions of a PHP module, we can use get_extension_funcs() function. This function takes the name of module as an input argument and returns the array of function names as output.
Example 1: In this example, we will print all the functions present in JSON module.
PHP
<?php $func_names = get_extension_funcs("DOM"); $length = count($func_names); for($i = 0; $i < $length; $i++) { echo($func_names[$i]); echo("<br>"); } ?> |
dom_import_simplexml
Example 2: In this example we will print all the functions present in XML module.
PHP
<?php $func_names = get_extension_funcs("XML"); $length = count($func_names); for($i = 0; $i < $length; $i++) { echo($func_names[$i]); echo("<br>"); } ?> |
xml_parser_create xml_parser_create_ns xml_set_object xml_set_element_handler xml_set_character_data_handler xml_set_processing_instruction_handler xml_set_default_handler xml_set_unparsed_entity_decl_handler xml_set_notation_decl_handler xml_set_external_entity_ref_handler xml_set_start_namespace_decl_handler xml_set_end_namespace_decl_handler xml_parse xml_parse_into_struct xml_get_error_code xml_error_string xml_get_current_line_number xml_get_current_column_number xml_get_current_byte_index xml_parser_free xml_parser_set_option xml_parser_get_option utf8_encode utf8_decode
Example 3: In this example, we will print all the functions present in DOM module.
PHP
<?php $func_names = get_extension_funcs("JSON"); $length = count($func_names); for($i = 0; $i < $length; $i++) { echo($func_names[$i]); echo("<br>"); } ?> |
json_encode json_decode json_last_error json_last_error_msg
