我被这个问题困扰了几天了
我有此代码,AJAX会查询此代码,并提供一个有效链接,可从其API链接到“ Pixel图片”。然后将其大小调整为640x420,以适合站点周围的图像容器。该站点将调整大小,保存大小,然后将UUID返回给AJAX。问题似乎是由于重新执行imageresize采样而导致的。创建新图像并将其保存到要保存的变量中,但是不会被调整大小的副本覆盖。
<?php
//user authentication would go here
//loading shared API would go here
$q = $_REQUEST['q'];
//other use cases for this API would go here
if($q=="getImage") {
$pixabay = $_REQUEST['link'];
$url = gen_uuid();
$suffix = $_SERVER['DOCUMENT_ROOT']."/temp/";
$filename = $suffix.$url.".jpg";
$image = file_get_contents($pixabay);
file_put_contents($filename, $image);
$source_image_tmp = imagecreatefromjpeg($filename);
$source_image = imagecreatetruecolor(imagesx($source_image_tmp),imagesy($source_image_tmp));
imagecopy($source_image,$source_image_tmp,0,0,0,0,imagesx($source_image_tmp),imagesy($source_image_tmp));
$origx = imagesx($source_image);
$origy = imagesy($source_image);
$dest_imagex = 640;
$dest_imagey = 420;
$dest_image = imagecreatetruecolor($dest_imagex, $dest_imagey);
imagecopyresampled($dest_image, $source_image, 0, 0, 0, 0, $dest_imagex, $dest_imagey, $source_imagex, $source_imagey);
imagejpeg($dest_image, $filename);
die($url);
}
?>
据我所知,$ dest_image已创建,但从未被imagecopyresampled覆盖,因此它仅返回黑色的640x420框。没有PHP错误返回,尽我所能告诉服务器应该支持它。
答案 0 :(得分:0)
这是我的问题所在:我正在调用不存在的变量。我不知道这种情况如何持续几天让我回避,但事实就是如此,它现在可以正常运行。
imagecopyresampled($dest_image, $source_image, 0, 0, 0, 0, $dest_imagex, $dest_imagey, $source_imagex, $source_imagey);
蜜饯
imagecopyresampled($dest_image, $source_image, 0, 0, 0, 0, $dest_imagex, $dest_imagey, $origx, $origy);
其中$ source_imagex和$ sourceimagey变为$ origx和$ origy