How can text files be effectively modified using PHP scripts without disrupting existing code functionality?

To effectively modify text files using PHP scripts without disrupting existing code functionality, you can use functions like `file_get_contents()` to read the file contents, make the necessary modifications, and then use `file_put_contents()` to write the updated content back to the file. 

$file = 'example.txt';
$content = file_get_contents($file);

// Modify the content as needed
$newContent = str_replace('old_text', 'new_text', $content);

file_put_contents($file, $newContent);

Keywords

file handling PHP scripts text files modification code functionality

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