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我很新,在php中调整图片大小。基本上我想用上传的图片制作缩略图。我用下面的代码,但它不工作,任何人可以帮助我吗?..谢谢了... ...上传时调整图片的尺寸
if($_FILES['logo2_1']['name'])
{
$uniq = substr(md5(uniqid (rand())), 0, 10);
$ext = strtolower(substr(strrchr($_FILES['logo2_1']['name'], '.'), 1));
$allwd = array('jpg','jpeg','gif','png');
if (in_array($ext , $allwd))
{
if (move_uploaded_file($_FILES['logo2_1']['tmp_name'], $upload_dir['path']."/".$uniq.".".$ext)){
move_uploaded_file($_FILES['logo2_1']['tmp_name'], $upload_dir['path']."/".$uniq.".".$ext);
$logo2_1 = $upload_dir['path']."/".$uniq . '.' . $ext;
//$logo_1 = "yes";
}
else
{$logo2_1 = "no00";}
}
}