clear current buffer.

Output a string to error_log.

Output a string to local error_log.

Return the current function

Delete a variable.

Dump all variables.

Generate an error and stop execution.

Check if a class exist

Check if a function exist

Check if a method exist in a class

Check if a user function exist

Set return status code and stop.

Finish execution.

Flush current buffer.

get current buffer.

Set return status code in HTTP header.

Return an array of all class currently defined.

Return an array of all system functions

Return an array of all method currently defined.

Return an array of all user functions

Control output.

Redirect current request to a new URL.

Return the value of a variable

Replace current execution file.

Set current args to process.

Set content type for the httpd server.

Set current filename to process.

Function set_user

Send a signal

Sleep for a while

Set return status code.

Stop execution.