Workshop

The workshop is designed to help you anticipate possible questions, review what you've learned, and begin putting your knowledge into practice.

Quiz

1:	What functions do you use to add library code to the currently running script?
A1:	You can use the require() or include() statement to incorporate PHP files into the current document. You could also use include_once() or require_once().
2:	What function do you use to find out whether a file is present on your file system?
A2:	You can test for the existence of a file with the file_exists() function.
3:	How do you determine the size of a file?
A3:	The filesize() function returns a file's size in bytes.
4:	What function do you use to open a file for reading or writing?
A4:	The fopen() function opens a file. It accepts the path to a file and a character representing the mode. It returns a file resource.
5:	What function do you use to read a line of data from a file?
A5:	The fgets() function reads data up to the buffer size you pass it, the end of the line, or the end of the document, whichever comes first.
6:	How can you tell when you've reached the end of a file?
A6:	The feof() function returns true when the file resource it's passed reaches the end of the file.
7:	What function do you use to write a line of data to a file?
A7:	You can write data to a file with the fputs() function.
8:	How do you open a directory for reading?
A8:	The opendir() function enables you to open a directory for reading.
9:	What function do you use to read the name of a directory item after you've opened a directory for reading?
A9:	The readdir() function returns the name of a directory item from an opened directory.

Activities

1. Create a form that accepts a user's first and second name. Create a script that saves this data to a file.

2. Create a script that reads the data file you created in activity 1. In addition to writing its contents to the browser (adding a <BR> tag to each line), print a summary that includes the number of lines in the file and the file's size.