What are the implications of using "w+" when opening a file in PHP for writing?

Using "w+" when opening a file in PHP for writing can overwrite the existing content of the file. To avoid this issue and append new content to the existing file, you should use "a+" instead. 

$file = fopen("example.txt", "a+");
fwrite($file, "New content to append");
fclose($file);

Keywords

file handling fopen writing mode error handling implications

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