PHP Files Reading from Standard Input

PHP Files

Reading from Standard Input

Problem

You want to read from standard input in a command-line context—for example, to get user input from the keyboard or data piped to your PHP program.

Solution

Use fopen() to open php://stdin:

       $fh = fopen('php://stdin','r') or die($php_errormsg);

       while($s = fgets($fh)) {

              print "You typed: $s";

       }

Discussion

Discusses reading data from the keyboard in a command-line context in more detail. Reading data from standard input isn’t very useful in a web context, because information doesn’t arrive via standard input. The bodies of HTTP POST and file- upload requests are parsed by PHP and put into special variables. Non–file-upload POST request bodies can also be read with the php://input stream.