一言签名档

hitokoto_img.php

<?php
// download hitokoto.json from https://github.com/kokororin/hitokoto
$hitokoto = json_decode(file_get_contents('./hitokoto.json'),true);
$h = $hitokoto[array_rand($hitokoto)];
$hh = $h['hitokoto'];
$count = mb_strlen($hh,'UTF-8');
$height = $count * 27;
$width = 30;
$line = 1;
//换行还是有点bug 不想思考了
if($count > 30){
    $height = 800;
    $line =  ceil($count / 30);
    $width = 30 * $line;
}
$image = imagecreate($height, $width); 
$bg    = imagecolorallocate($image, 255, 255, 255);
$font  = './1.TTF'; 
$black = imagecolorallocate($image, 0, 0, 0); 
imagecolortransparent($image,$bg);
header('Content-type: image/png');
for ($i=0; $i < $line ; $i++) {
    $t = mb_substr($hh,0,30);
    $hh = str_replace($t,'',$hh);
    imagettftext($image, 20, 0, 1, $i * 28 + 25, $black, $font, $t);
}
imagepng($image);
imagedestroy($image);