How can permissions affect file copying operations in PHP?

Permissions can affect file copying operations in PHP if the source file does not have read permissions or the destination directory does not have write permissions. To solve this issue, you can check and adjust the permissions of the files and directories involved in the copying operation before attempting to copy the file. 

// Check and adjust permissions before copying the file
$sourceFile = 'source.txt';
$destinationFile = 'destination.txt';

if (is_readable($sourceFile) && is_writable(dirname($destinationFile))) {
    copy($sourceFile, $destinationFile);
    echo 'File copied successfully.';
} else {
    echo 'Error: Unable to copy file due to permissions.';
}

Keywords

permissions file copying PHP error handling file system

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