Google Fonts downloader

download-fonts.php

#!/usr/bin/php
<?php

/**
 * Usage: 
 *   1. Save the file undere "download-fonts.php"
 *   2. Call it with a google fonts css url as the first parameter like this: "download-fonts.php https://fonts.googleapis.com/css2?family=Amiri:ital@0;1&display=swap"
 *   3. It will save all fonts to a newly created fonts folder and output the parsed css file with corrected paths. You can adjust the $fontsFilePrefix variable to change the prefix of the font file in the generated css.
 */

if(!isset($argv[1]) || substr($argv[1], 0, 20) !== 'https://fonts.google') {
	echo 'Please provide a valid google fonts url as the first parameter!'."\n";
	exit(1);
}

$fontCssUrl = $argv[1];
$fontsCss = file_get_contents($fontCssUrl);
$lines = explode("\n", $fontsCss);

$fontsFilePrefix = '../fonts';
$folder = __DIR__ . '/fonts';
@mkdir($folder);

$finalFontCss = '';

foreach($lines as $line) {
	$pathPos = strpos($line, 'https://');
	if($pathPos === false) {
		$finalFontCss .= $line."\n";
		continue;
	}

	$url = substr($line, $pathPos, strpos($line, ')') - $pathPos);

	echo "Downloading file $url...\n";

	$parts = explode('/', $url);
	$newFilename = $parts[4].'-'.$parts[6];

	file_put_contents($folder . '/' . $newFilename, file_get_contents($url));

	$finalFontCss .= str_replace($url, $fontsFilePrefix . '/' . $newFilename, $line). "\n";
}

echo $finalFontCss;