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HomeBackend DevelopmentPHP TutorialPHP获取远程图片并保存到本地的方法_PHP

本文实例讲述了PHP获取远程图片并保存到本地的方法。分享给大家供大家参考。具体实现方法如下:

<&#63;php
function GrabImage($url, $filename = "") {
 if ($url == ""):return false;
 endif;
 //如果$url地址为空,直接退出
 if ($filename == "") {
 //如果没有指定新的文件名
 $ext = strrchr($url, ".");
 //得到$url的图片格式
 if ($ext != ".gif" && $ext != ".jpg"):return false;
 endif;
 //如果图片格式不为.gif或者.jpg,直接退出
 $filename = date("dMYHis") . $ext;
 //用天月面时分秒来命名新的文件名
 } 
 ob_start();//打开输出
 readfile($url);//输出图片文件
 $img = ob_get_contents();//得到浏览器输出
 ob_end_clean();//清除输出并关闭
 $size = strlen($img);//得到图片大小
 $fp2 = @fopen($filename, "a");
 fwrite($fp2, $img);//向当前目录写入图片文件,并重新命名
 fclose($fp2);
 return $filename;//返回新的文件名
} 
$img = GrabImage("http://imgsrc.baidu.com/baike/abpic/item/6648d73db0edd1e89f3d62f7.jpg", "");
if ($img):echo '<pre class="brush:php;toolbar:false"><img  src="' . $img . '" alt="PHP获取远程图片并保存到本地的方法_PHP" >
'; //如果返回值为真,这显示已经采集到服务器上的图片 else:echo "false"; endif; //否则,输出采集失败 ?>

希望本文所述对大家的php程序设计有所帮助。

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