一个PHP的远程图片抓取函数分享_PHP教程

function grabImage($url, $filename = '') { 
if($url == '') { 
return false; //如果 $url 为空则返回 false; 
} 
$ext_name = strrchr($url, '.'); //获取图片的扩展名 
if($ext_name != '.gif' && $ext_name != '.jpg' && $ext_name != '.bmp' && $ext_name != '.png') { 
return false; //格式不在允许的范围 
} 
if($filename == '') { 
$filename = time().$ext_name; //以时间戳另起名 
} 
//开始捕获 
ob_start(); 
readfile($url); 
$img_data = ob_get_contents(); 
ob_end_clean(); 
$size = strlen($img_data); 
$local_file = fopen($filename , 'a'); 
fwrite($local_file, $img_data); 
fclose($local_file); 
return $filename; 
} 


http://www.bkjia.com/PHPjc/313576.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/313576.htmlTechArticle 代码如下:
function grabImage($url, $filename = '') { if($url == '') { return false; //如果 $url 为空则返回 false; } $ext_name = strrchr($url, '.'); //获取图...