Ghost to Jekyll with PHP

ghost2jekyll.php

#!/usr/bin/php
<?php

if (empty($argv[1])) {
	die("Filename parameter is required." . PHP_EOL . "Example: ./ghost2jekyll.php GhostData.json" . PHP_EOL);
}

@mkdir("_drafts");
@mkdir("_posts");

$json = json_decode(file_get_contents($argv[1])) or die("Failed to load file {$argv[1]}");

$tags = array();
foreach($json->data->tags as $tag)
	$tags[$tag->id] = $tag->slug;

$ptags = array();
foreach($json->data->posts_tags as $ptag) {
	if(!isset($ptags[$ptag->post_id]))
		$ptags[$ptag->post_id] = array();
	$ptags[$ptag->post_id][] = $tags[$ptag->tag_id];
}

foreach($json->data->posts as $post) {
	$fm = "---\nlayout: post\ntitle: {$post->title}\ndate: " . date("Y-m-d H:i:s", $post->published_at / 1000) . "\n";
	if(isset($ptags[$post->id]))
		$fm .= "tags: " .implode(" ", $ptags[$post->id]) . "\n";
	if($post->image)
		$fm .= "image: {$post->image}\n";
	$fm .= "---";

	if($post->status == "draft") {
		$fn = "_drafts/{$post->slug}.md";
	} else {
		$fn = "_posts/" . date("Y-m-d", $post->published_at / 1000) . "-{$post->slug}.md";
	}
	file_put_contents($fn, "$fm\n$post->markdown");
}

Seems to work fairly well, I was able to convert http://blog.phpizza.com to http://alanaktion.github.io/blog-test/ quite easily.