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缩略图生成的php程序_PHP

时间:2021-07-01 10:21:17 帮助过:6人阅读

客户端上载的页面:

-------------------- upload.htm ---------------------


method="post" action="upload.php">

请选择或输入上传文件名:



--------------------- upload.php -------------------

if(empty($upfile)){

print(
"No file was transfered!\n无文件上传!");

exit;

}

$image_path=$upfile;

@
$image_info=getimagesize($image_path);

if(
$image_info[2]==2)

{@
$image2=imagecreatefromjpeg($image_path);

}

else if(
$image_info[2]==1){

@
$image2=imagecreatefromgif($image_path);

}

else

if(empty(
$image2))

$image2_x=imagesx($image2);

$image2_y=imagesy($image2);

if(
$image2_x==$image2_y){

$x=150;

$y=0;

}

else if(
$image2_x>$image2_y){

$x=150;

$y=intval(150*$image2_y/$image2_x);

}

else{

$y=150;

$x=intval(150*$image2_x/$image2_y);

}

$image1=imagecreate($x,$y);

imagecopyresized($image1,$image2,0,0,0,0,$x,$y,$image2_x,$image2_y);

imagegif($image1,"new.gif");

?>

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