PHP正则采集图片并保存
2021-06-12 08:03
标签:splay php正则 art 文件目录 strlen play out ima clean PHP正则采集图片并保存 标签:splay php正则 art 文件目录 strlen play out ima clean 原文地址:http://www.cnblogs.com/xtmp/p/7288150.htmlphp
/*
*功能:php完美实现下载远程图片保存到本地
*参数:文件url,保存文件目录,保存文件名称,使用的下载方式
*当保存文件名称为空时则使用远程文件原来的名称
*/
function getImage($url, $save_dir = ‘‘, $filename = ‘‘, $type = 0)
{
if (trim($url) == ‘‘) {
return array(
‘file_name‘ => ‘‘,
‘save_path‘ => ‘‘,
‘error‘ => 1);
}
if (trim($save_dir) == ‘‘) {
$save_dir = ‘./‘;
}
if (trim($filename) == ‘‘) { //保存文件名
$ext = strrchr($url, ‘.‘);
if ($ext != ‘.gif‘ && $ext != ‘.jpg‘) {
return array(
‘file_name‘ => ‘‘,
‘save_path‘ => ‘‘,
‘error‘ => 3);
}
$filename = time() . $ext;
}
if (0 !== strrpos($save_dir, ‘/‘)) {
$save_dir .= ‘/‘;
}
//创建保存目录
if (!file_exists($save_dir) && !mkdir($save_dir, 0777, true)) {
return array(
‘file_name‘ => ‘‘,
‘save_path‘ => ‘‘,
‘error‘ => 5);
}
//获取远程文件所采用的方法
if ($type) {
$ch = curl_init();
$timeout = 5;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$img = curl_exec($ch);
curl_close($ch);
} else {
ob_start();
readfile($url);
$img = ob_get_contents();
ob_end_clean();
}
//$size=strlen($img);
//文件大小
$fp2 = @fopen($save_dir . $filename, ‘a‘);
fwrite($fp2, $img);
fclose($fp2);
unset($img, $url);
return array(
‘file_name‘ => $filename,
‘save_path‘ => $save_dir . $filename,
‘error‘ => 0);
}
$url=‘http://old.pep.com.cn/xxsx/jszx/tbjxzy/xs3bjxzy/wenzi/201504/W020150417332945629042.jpg‘;
getImage($url, $save_dir = ‘./getimg/‘, $filename = ‘‘, $type = 0);
?>