Web Reference: PHP Files and I/O is the process of reading, writing, creating and deleting files. PHP has various functions for easy file management. We can open a file and write to or read from it. You can test and compare your PHP code on 400+ PHP versions with this online editor. PHP Sandbox . Run. Share / Save. Beautify. Clear. My Saved code. Load file. Download code. Here is the PHP code to read the file, and write it to the output buffer: The readfile() function is useful if all you want to do is open a file and write its contents to the browser. The next chapters will teach you more about PHP file handling.
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