PHP file handling
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This document provides an overview of file handling in PHP. It discusses opening, reading, and writing to files using functions like fopen(), fread(), fclose(), fgets(), feof(), and fwrite(). These functions allow you to create, open, read, write, and close files. The document uses an example text file and code snippets to demonstrate how to use these PHP file handling functions.
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COURSE TITLE: SOFTWARE DEVELOPMENT VI
COURSE CODE: VIT 351
TOPICS COVERED:
FILES
FILES I/O STREAM
TYPES OF FILES
DRAWBACKS OF TRADITIONAL METHOD OF DATA STORAGE
CONCEPT OF BUFFER
MODES OF FILE OPENING
END OF FILE
PROCESSORS DIRECTIVES
MACROS
TYPES OF MACROS
DIFFERENCE BETWEEN MACROS AND FUNCTIONS
QUIZ SET 5
Unit 8
1) A file stores related data permanently on secondary storage like hard disks. It supports volatile main memory by storing data when the system shuts down.
2) A file name typically contains a primary name and optional extension separated by a period. File information like name and read/write position is stored in a file information table.
3) Standard input, output, and error streams (stdin, stdout, stderr) allow programs to read from and write to files and devices. Functions like fopen(), fclose(), fread(), fwrite() manage file access.
DIWE - File handling with PHP
Esoft Metro Campus - Diploma in Web Engineering - (Module VIII) Multimedia Technologies
(Template - Virtusa Corporate)
Contents:
include and require Statements
include and require
include_once Statement
Validating Files
file_exists() function
is_dir() function
is_readable() function
is_writable() function
is_executable() function
filesize() function
filemtime() function
filectime() function
fileatime() function
Creating and deleting files
touch() function
unlink() function
File reading, writing and appending
Open File - fopen()
Close File - fclose()
Read File - fread()
Read Single Line - fgets()
Check End-Of-File - feof()
Read Single Character - fgetc()
Seek File - fseek()
Write File - fwrite()
Write File - fputs()
Lock File - flock()
Working with Directories
Create directory - mkdir()
Remove directory - rmdir()
Open directory - opendir()
Read directory - readdir()
File management
File management functions in C allow programs to work with files. They provide functions to open, read, write, and close files. Some key functions include fopen() to open a file, fread() and fwrite() to read from and write to files, and fclose() to close a file. Files can be opened in different modes like read, write, append depending on whether the file needs to be read from or written to. Command line arguments allow passing of inputs to a program from the command line when it is launched.
Handout#01
File Operation such as
Reading the file content
Writing the content to the file
Copying the content from one file to another file
Counting the number of character, words and lines of the file
Topic - File operation.pptx
To Open a File:
The syntax for opening the file is: File* fopen(char* name, char* mode); Opens the file 'name' and returns the FILE pointer. Values for 'mode' are 'r','w'and 'a'. fopen returns NULL if its unable to open file.
Php file handling in Hindi
This document discusses PHP file handling functions. It explains how to open, read, write, append, close and delete files using PHP functions like fopen(), fread(), fwrite(), fclose() and unlink(). It provides code examples to open a file in write mode, read the contents of a file, write data to a file, append data to a file without overwriting existing contents, close an open file stream, and delete a file. PHP file handling allows dynamically managing files through these basic file operations.
4 text file
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PHP file handling
- 1. iFour ConsultancyPHP File Handling web Engineering || winter 2017 wahidullah Mudaser assignment.cs2017@gmail.com Lecture 10 Files in PHP
- 2. File handling File functions Open File Writing in file Closing file OUTLINE
- 3. File handling is an important part of any web application. You often need to open and process a file for different tasks. PHP has several functions for creating, reading, uploading, and editing files. Files
- 4. A better method to open files is with the fopen() function. This function gives you more options than the readfile() function. We will use the text file, "webdictionary.txt", during the lessons: The first parameter of fopen() contains the name of the file to be opened and the second parameter specifies in which mode the file should be opened. PHP open file – fopen()
- 6. The fread() function reads from an open file. The first parameter of fread() contains the name of the file to read from and the second parameter specifies the maximum number of bytes to read. The fclose() function is used to close an open file. It's a good programming practice to close all files after you have finished with them. You don't want an open file running around on your server taking up resources! fread() and fclose()
- 7. example
- 9. Fgets() The fgets() function is used to read a single line from a file. Note: After a call to the fgets() function, the file pointer has moved to the next line. Feof() The feof() function checks if the "end-of-file" (EOF) has been reached. The feof() function is useful for looping through data of unknown length. More functions in PHP file
- 10. The fwrite() function is used to write to a file. The first parameter of fwrite() contains the name of the file to write to and the second parameter is the string to be written. fwrite()
- 11. Questions? http://www.ifourtechnolab.com/ ASP.NET Software Development Companies India