php远程怎么获取图片
php远程获取图片的方法:首先通过“imagecreate”函数创建画布;然后通过“getimagesize”获取图片信息;接着使用“imagecreatefromjpeg”方法对获取的图片进行处理即可。
php远程怎么获取图片?php远程获取图片并处理
通常我们要创建图像时会使用
//创建画布 $img=imagecreate(500,500); $path = './test.jpeg'; 获取图片信息,调用不同方法 //获取图片信息 $img_info = getimagesize($path); //获取图片类型,jpg等 $type = image_type_to_extension($info[2], false); //获取相应方法 $func = "imagecreatefrom{$type}"; 但当我们要获取已有的图片进行处理时,可以使用 imagecreatefromjpeg 方法 //$img=imagecreatefromjpeg('https://b-ssl.duitang.com/uploads/item/201607/04/20160704052649_WLyfB.jpeg'); $img=$func($path);
代码如下
<?php //$img=imagecreatefromjpeg('https://b-ssl.duitang.com/uploads/item/201607/04/20160704052649_WLyfB.jpeg'); $path = './test.jpeg'; //获取图片信息 $img_info = getimagesize($path); //获取图片类型,jpg等 $type = image_type_to_extension($info[2], false); //获取相应方法 $func = "imagecreatefrom{$type}"; $img=$func($path ); //设置颜色 //背景色 $white=imagecolorallocate($img,255,255,255); //画笔 $black=imagecolorallocate($img,0,0,0); //矩形 imagerectangle($img,100,100,300,300,$black); ob_clean(); header('Content-type:image/jpeg'); imagejpeg($img) or die('创建图形失败'); imagedestroy($img); ?>
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