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PHP File Handling: feof() and fwrite() Functions

7 Questions

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PHP File Handling: feof() and fwrite() Functions

Created by

@SelfSufficientAluminium

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Questions and Answers

Which function in PHP is used to check if the 'end-of-file' has been reached?

feof() (correct)

fwriteline()

endoffile()

fread()

In PHP, what value does the feof() function return when the end-of-file has been reached?

null

true (correct)

false

What is the purpose of the fwrite() function in PHP?

To read a file

To check if EOF is reached

To close a file

To write to a file (correct)

What is the return value of the feof() function in PHP when an error occurs?

True Signup and view all the answers

In the PHP code snippet provided, what happens if the file 'webdictionary.txt' cannot be opened?

The script exits with an error message Signup and view all the answers

What does the fwrite() function in PHP return on error?

False Signup and view all the answers

How does the feof() function aid in looping through a file in PHP?

Detects the end-of-file condition Signup and view all the answers

Study Notes

PHP File Handling

The feof() function in PHP is used to check if the 'end-of-file' has been reached.

feof() Function

The feof() function returns TRUE when the end-of-file has been reached.
The feof() function returns FALSE when an error occurs.

fwrite() Function

The purpose of the fwrite() function in PHP is to write to a file.
The fwrite() function returns the number of bytes written on success and FALSE on error.

File Handling Errors

If the file 'webdictionary.txt' cannot be opened, the PHP code snippet will produce an error.

feof() in Looping

The feof() function aids in looping through a file in PHP by checking for the end-of-file, ensuring the loop stops when the entire file has been read.

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Description

Learn how to check for the end-of-file (EOF) using the feof() function in PHP, along with the syntax and return values. Explore how to write to a file using the fwrite() function. Practice looping through a file and writing content with these file handling functions.