Makes a copy of the file source to dest. Returns TRUE on success or FALSE on failure.
Example 1. copy() example
<?php if (!copy($file, $file.'.bak')) { echo "failed to copy $file...<br />\n"; } ?>
Note: As of PHP 4.3.0, both source and dest may be URLs if the "fopen wrappers" have been enabled. See fopen() for more details. If dest is a URL, the copy operation may fail if the wrapper does not support overwriting of existing files.
Warning
If the destination file already exists, it will be overwritten.
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