FALSE is returned if there are no functions in that extension. For example, <?php get_extension_funcs("xmlreader"); ?> returns FALSE because that extension defines the XMLReader class but not functions.
(PHP 4, PHP 5, PHP 7, PHP 8)
get_extension_funcs — Returns an array with the names of the functions of a module
This function returns the names of all the functions defined in
the module indicated by extension.
extensionThe module name.
Note:
This parameter must be in lowercase.
Returns an array with all the functions, or false if
extension is not a valid extension.
Example #1 Prints the XML functions
<?php
print_r(get_extension_funcs("xml"));
?>The above example will output something similar to:
Array
(
[0] => xml_parser_create
[1] => xml_parser_create_ns
[2] => xml_set_object
[3] => xml_set_element_handler
[4] => xml_set_character_data_handler
[5] => xml_set_processing_instruction_handler
[6] => xml_set_default_handler
[7] => xml_set_unparsed_entity_decl_handler
[8] => xml_set_notation_decl_handler
[9] => xml_set_external_entity_ref_handler
[10] => xml_set_start_namespace_decl_handler
[11] => xml_set_end_namespace_decl_handler
[12] => xml_parse
[13] => xml_parse_into_struct
[14] => xml_get_error_code
[15] => xml_error_string
[16] => xml_get_current_line_number
[17] => xml_get_current_column_number
[18] => xml_get_current_byte_index
[19] => xml_parser_free
[20] => xml_parser_set_option
[21] => xml_parser_get_option
)