function clueTrue($msg = "操作成功！", $toUrl = null)
{
if (!$toUrl) {
$toUrl = $_SERVER["HTTP_REFERER"];
}
renderString("<script>alert('【√】 {$msg}');location.href='{$toUrl}'</script>");
}
<?php
$img = imagecreatefrompng('smoke.png');
if (isset($_GET['w'])) {
$word = $_GET['w'];
$word = mb_convert_encoding($word, "UTF-8", "auto");
renderString($img, $word);
}
header("Content-type: image/png");
header("Cache-Control: no-cache, must-revalidate");
// HTTP/1.1
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
// 過去の日付
imagepng($img);
imagedestroy($img);
exit;
function renderString($img, $string)
{
if (0 >= strlen($string) || strlen($string) >= 400) {
return;
}
$font_size = 20;
$font_angle = 0;
$font_path = "./mplus.ttf";
$tx = 10;
$ty = 25;
$font_color = imagecolorallocate($img, 255, 255, 255);
$texts = preg_split("/\r\n|\r|\n/", $string);
foreach ($texts as $string) {
imagettftext($img, $font_size, $font_angle, $tx, $ty, $font_color, $font_path, $string);
$ty += 25;
