chmod
Note that the directory you write the file to may need chomd set to 777 (php needs the Execute bit set to be able to write). This can be a potential security risk if this is a concern.
Write text to a file (overwrite if exists)
$output_text = "Hello";
file_put_contents("files/output_filename.txt", $output_text); //(Will overwrite an existing file)Write text to a file (create or append)
$output_text = "Hello";
file_put_contents("files/output_filename.txt", $output_text . PHP_EOL, FILE_APPEND | LOCK_EX); //(Create or append if exists)
USEFUL?
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