php批量上传三[带预览]_PHP教程

if($_POST['upload']=='提交'){
//*******************************************************
//**批量上传**********************************************
function saveImage ($im , $filename)
{
$r = imagejpeg ($im , $filename);

if($r){
echo "";
}
else{
echo "";
}

}

function Makesuo ($img_path,$img_name,$img_type)
{

$open_file = $img_path.$img_name;

$file_type = $img_type;

if($file_type == "jpg"){

$source = imagecreatefromjpeg($open_file);

}
elseif($file_type == "gif"){

$source = imagecreatefromgif($open_file);

}
elseif($file_type =="png"){

$source = imagecreatefrompng($open_file);

}

$size = getimagesize($open_file);

$size_wei = $size[0];

$size_hei = $size[1];

$pic_bi = $size_wei/$size_hei;

if($pic_bi>1.2){

$new_wei = $size_hei*1.2;

$new_hei = $size_hei;

$loda_point = ($size_wei-$new_wei)/2;

$target1 = imagecreatetruecolor(120,100);

imagecopyresized($target1,$source,0,0,$loda_point,0,120,100,$new_wei,$new_hei);

saveImage($target1, "../suo_img/suo_".$img_name,$file_type);

return "../suo_img/suo_".$img_name;

imagedestroy($source);

imagedestroy($target1);

}


elseif($pic_bi <= 1.2 && $pic_bi >= 1){
$new_wei = $size_hei*1.2;

$new_hei = $size_hei;

$loda_point = ($size_wei-$new_wei)/2;

$target1 = imagecreatetruecolor(120,100);

imagecopyresized($target1,$source,0,0,$loda_point,0,120,100,$new_wei,$new_hei);

saveImage($target1, "../suo_img/suo_".$img_name,$file_type);

return "../suo_img/suo_".$img_name;

imagedestroy($source);

imagedestroy($target1);
}


elseif($pic_bi < 1){

$new_hei = $size_wei*1.2;

$new_wei = $size_wei;

$loda_point = ($size_hei-$new_hei)/2;

$target1 = imagecreatetruecolor(120,100);

imagecopyresized($target1,$source,0,0,0,$loda_point,120,100,$new_wei,$new_hei);

saveImage($target1, "../suo_img/suo_".$img_name,$file_type);

return "../suo_img/suo_".$img_name;

imagedestroy($source);

imagedestroy($target1);

}
}

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