Php file operations

Php file operations

// File operations // Copy () copy the object // Unlink () delete an object // Ftruncate () truncates the object to the specified length // Rename () rename a file or directory If (copy ("data.txt", "data_bak.txt") {// copy a file instance Echo "file copied successfully "; } Else { Echo "file copy failed "; } If (file_exists ("data_bak.txt") {// delete a file instance If (unlink ("data_bak.txt ")){ Echo "file deleted successfully "; } Else { Echo "an error occurred while deleting the file. "; } } Else { Echo "the target file does not exist. "; } If (rename ("file.jpg", "file.txt") {// rename the file instance Echo "file renamed successfully "; } Else { An error occurred while renaming the echo file. "; } $ Fp = fopen ("data_bak.txt", "r +") or die ("file opening failed "); If (ftruncate ($ fp, 1024 )){ Echo "the file has been intercepted "; } Else { Echo "failed to intercept the file "; } Fclose ($ fp ); ?>

PHP