default-font-css.php

<?php
header("Content-type: text/css; charset: UTF-8");
if (!isset($_GET["fn"])) {
	//なぜかデフォルトフォントが設定されてないのにここに迷い込んできた場合はとりあえずNotoを割り当て
	$fontname = "Noto Sans Japanese";
}
$fnis = $_GET["fn"];
if ($fnis == "Noto" or $fnis == "noto") {
	$fontname = "Noto Sans Japanese";
}
if ($fnis == "Huifont") {
	$fontname = "Huifont";
}
if ($fnis == "kokorom") {
	$fontname = "kokorom";
} else {
	$fontname = "Noto Sans Japanese";
}
?>
body#tinymce.wp-editor {
font-family: <?php echo $fontname; ?> !important;
}