How copy() php works ? overwritting contents or adds? -

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i think don't understand how copy() works...

it overwritting contents of orginal file in destination file or adds content ?

$originale = '/var/www/sito/pagina.php'; $copia = '/var/www/sito_backup/backup_pagina.php'; copy($originale,$copia);

the doc copy() says:

warning if destination file exists, overwritten.

if need different behavior have @ fopen() , $mode parameter.


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