How Can I Use PHP Standard Input for Scripting?

PHP Standard Input

PHP is primarily known for web development where standard input is unavailable. However, PHP's versatility extends to general-purpose scripting when adhering to its web-based conventions. This article explores the possibility of PHP scripts retrieving input from stdin using fgetc() or other input functions.

To input data from stdin using PHP, a file handle to php://stdin can be created. Subsequently, data can be read using fgets() (for line input) or fgetc() (for single character input).

Here's an example PHP script:

<code class="php"><?php
$f = fopen('php://stdin', 'r');

while ($line = fgets($f)) {
  echo $line;
}

fclose($f);
?></code>

By executing this script, the PHP program reads and displays input provided through the standard input channel.

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