What are common pitfalls when working with file operations in PHP?

Common pitfalls when working with file operations in PHP include not properly checking for errors when opening, reading, writing, or closing files, not handling file permissions correctly, and not sanitizing user input before using it in file operations to prevent security vulnerabilities. 

// Example of properly checking for errors when opening a file
$file = fopen("example.txt", "r") or die("Unable to open file!");

Keywords

file operations PHP fopen file permissions error handling

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