Summary of some php system functions and php function _ PHP Tutorial

Summarize some php system functions and php functions. I will summarize some php system functions for you, and summarize the php functions which I think are more detailed. please hurry up and add them to favorites! PHP system functions assert function: check the assertion declaration to summarize some php system functions and php functions.

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PHP system functions

Assert function:Check whether the assertion declaration is correct
Extension_loaded function:Check whether PHP extensions are loaded
Get_cfg_var function:Obtain the PHP configuration option value
Get_current_user function:Get the name of the owner of the current PHP script
Get_defined_constants function:Returns an array containing PHP predefined constants.
Get_extension_funcs function: Returns an array containing the names of all functions in the specified module.
Get_include_path function:Returns the information of the path contained in the current configuration file.
Get_included_files function:Returns an array of file information.
Get_loaded_extensions function:Returns an array containing information about all loaded modules.
Get_magic_quotes_gpc function:Obtain magic_quotes_gpc status information
Get_magic_quotes_runtime function:Obtain magic_quotes _ runtime status information
Get_required_files function:Returns an array of file information.
Getenv function:Get the PHP environment variable value

PHP system functions

Getlastmod function:Obtain the last modification time of the current PHP page File
Getmygid function:Get the GID number of the current PHP script page owner
Getmyinode function: Get the INODE number of the current PHP script page
Getmypid function:Obtain the PHP PID
Getmyuid function:Obtain the UID of the PHP script page owner
Getopt function:Get settings from the command line parameter list
Getrusage function:Obtain the current resource syntax
Ini_get_all function:Get all configuration options
Ini_get function:Obtains the value of the configuration option.
Memory_get_usage function:Returns the memory space occupied by the PHP script.
Php_ini_scanned_files function:Return to the configuration file list in the configuration file directory.
Php_logo_guid function:Get the GUID of the LOGO image
Php_sapi_name function:Obtain the interface type between PHP and Web server
Php_uname function:Obtain the operating system information for running PHP scripts.
Phpcredits functions:Print the credits list
Phpinfo function:Output PHP information
Phpversion function:Get PHP version
Zend_logo_guid function:Get the GUID of the zend logo image
Zend_version function:Obtain the ZEND Engine version

PHP configuration functions

Assert_options function:Set or obtain different declaration tags
Ini_alter function:Set the PHP configuration option value
Ini_restore function:Restore configuration options
Ini_set function:Set the PHP configuration option value
Putenv function:Set environment variables
Restore_include_path function:Recovery file contains path configuration information
Set_include_path function:Set file inclusion path configuration options
Set_magic_quotes_runtime function:Set magic_quotes runtime
Set_time_limit function:Set the maximum execution time

Other functions

Dl functions:Load PHP extension modules
Main function:It is only a main () function with a name.
Version_compare function:Compare PHP versions

The above are all php system functions, and hope to help you learn.

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