Automated Wordpress Installer

wordpress.php

#!/usr/bin/php
<?php
$usage = "Automated Wordpress installer\nby Ali Gangji\nUsage: wordpress install_dir -u dbuser -p dbpass -d dbname\nOptions:\n";
$usage .= "  -u dbuser         Database username\n";
$usage .= "  -p dbpass         Database password\n";
$usage .= "  -d dbname         Database name\n";
$usage .= "  -h dbhost         Database host\n";
$usage .= "  --private         Hide blog from search engines\n";
$usage .= "  --prefix prefix   Database prefix\n";
if ($argc < 2) {
	echo $usage;
	exit;
}
function curl_get_file_contents($URL) {
	$c = curl_init();
	curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($c, CURLOPT_URL, $URL);
	$contents = curl_exec($c);
	curl_close($c);
	if ($contents) return $contents;
	else return false;
}
$dir = $argv[1];
$ex_str = (file_exists($dir)) ? "" : "mkdir $dir; ";
exec($ex_str."curl -O http://www.wordpress.org/latest.tar.gz; tar -xzf latest.tar.gz; mv wordpress/* $dir/; rmdir wordpress; rm latest.tar.gz");
$public = 1;
foreach($argv as $i => $v) {
	if ($v == "-u") $user = $argv[$i+1];
	else if ($v == "-p") $pass = $argv[$i+1];
	else if ($v == "-d") $dbse = $argv[$i+1];
	else if ($v == "-h") $host = $argv[$i+1];
	else if ($v == "--private") $public = 0;
	else if ($v == "--prefix") $prefix = $argv[$i+1];
}
if (file_exists("$dir/wp-config-sample.php") && !file_exists("$dir/wp-config.php")) {
	$wpconfig = file_get_contents("$dir/wp-config-sample.php");
	$keys = curl_get_file_contents("https://api.wordpress.org/secret-key/1.1/");
	$start = strpos($wpconfig, "define('AUTH_KEY'");
	$search = substr($wpconfig, $start, 221);
	$wpconfig = str_replace($search, $keys, $wpconfig);
	if (!empty($user)) $wpconfig = str_replace("define('DB_USER', 'usernamehere');", "define('DB_USER', '$user');", $wpconfig);
	if (!empty($pass)) $wpconfig = str_replace("define('DB_PASSWORD', 'yourpasswordhere');", "define('DB_PASSWORD', '$pass');", $wpconfig);
	if (!empty($dbse)) $wpconfig = str_replace("define('DB_NAME', 'putyourdbnamehere');", "define('DB_NAME', '$dbse');", $wpconfig);
	if (!empty($host)) $wpconfig = str_replace("define('DB_HOST', 'localhost');", "define('DB_HOST', '$host');", $wpconfig);
	if (!empty($prefix)) $wpconfig = str_replace("\$table_prefix  = 'wp_';", "\$table_prefix  = '$prefix';", $wpconfig);
	$file = fopen("$dir/wp-config.php", "wb");
	fwrite($file, $wpconfig);
	fclose($file);
} else fwrite(STDOUT, "wp-config.php already exists\nusing existing configuration\n");
fwrite(STDOUT, "Visit wp-admin/install.php to complete the installation.");
?>