PHP File Operations Basics
File operations let you read, write, and manage files on the server. Essential for data storage, logging, and file-based applications!
Output
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Read Entire File
<?php
$content = file_get_contents('example.txt');
echo $content;
?>
Write to File
<?php
// Overwrite file
file_put_contents('output.txt', "Hello, World!");
// Append to file
file_put_contents('output.txt', "\nNew line", FILE_APPEND);
?>
Check File Existence
<?php
if (file_exists('example.txt')) {
echo "File exists";
}
?>
Summary
- file_get_contents(): Read entire file
- file_put_contents(): Write to file
- file_exists(): Check if file exists
- filesize(): Get file size
What's Next?
Next, learn about Advanced File Operations with fopen, fread, and fwrite!
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