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我正在为我的网站创建一个文件上传脚本并使用 canvas.php 来缩小图像。上传工作正常,但缩放没有。我以前从未使用过它,所以我希望这只是一个小错误。这是我的代码:

<?php
$newfilename = $id;

$extension = end(explode(".", $_FILES["file"]["name"]));

$path = "../posts/$type/";

//INSERT TO TABLE
if(mysqli_affected_rows($con)>0){
    move_uploaded_file($_FILES["file"]["tmp_name"],"$path" . $newfilename . "." . $extension);
    header("Location: ../dashboard.php?page=posts");
    exit();
}
else{
header("Location: ../404.php");
}
?>
<?php
if($type == "photo"){
require_once "canvas.php";
$img = new canvas("$path" . $newfilename . "." . $extension);
$img
->resize("700")
->save("$path" . $newfilename . "." . $extension);
}
?>

这使用 canvas.php ( http://canvas.daviferreira.com/ )

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