Takes each line in stdin, and wrap it with a template

templatize.php

<?php

if (!isset($argv[1])) {
    die(sprintf('You forgot to give a template: %s "<prefix> %%s <suffix>"%s', $argv[0], "\n"));
}

$template = $argv[1];
$raw = file_get_contents('php://stdin');
$lines = explode(PHP_EOL, $raw);

foreach ($lines as $line) {
    echo str_replace('%s', $line, $template), PHP_EOL;
}