7 File Input Output Operation Pdf Computer File Input Output Php: output is a write only stream that allows you to write to the output buffer mechanism in the same way as print and echo. php: fd allows direct access to the given file descriptor. for example, php: fd 3 refers to file descriptor 3. The readfile() function reads a file and writes it to the output buffer. assume we have a text file called "webdictionary.txt", stored on the server, that looks like this:.

Php File Input Output Php: input is a read only stream that allows you to read the request body sent to it (like uploaded files or post variables). $request body = stream get contents('php: input'); php: output is a writable stream that is sent to the server and will be returned to the browser that requested your page. $fp = fopen('php: output', 'w');.

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Output Or Display An Image In The Browser From Php