在php中，我上传文件的代码如下
$image_name= $_FILES['file']['name'];
$allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $_FILES["file"]["name"]);
$extension = end($temp);
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/jpg")
|| ($_FILES["file"]["type"] == "image/pjpeg")
|| ($_FILES["file"]["type"] == "image/x-png")
|| ($_FILES["file"]["type"] == "image/png"))
&& in_array($extension, $allowedExts)) {
if ($_FILES["file"]["error"] > 0) {
echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
}
else {
move_uploaded_file($_FILES['file']['tmp_name'], $tmpName.$image_name);
}
}
现在，当我上传时，这个代码运行良好。但它不适用于文件类型验证。我用过仅限$allowedExts = array("gif", "jpeg", "jpg", "png"); to use only these types of file to upload. But this one is uploading any files type. So can someone kindly tell me where is the wrong part here. I want to upload only"gif"、"jpeg"、"jpg"、"png"文件。任何帮助和建议都将不胜感激。谢谢
我记得我以前遇到过文件类型的问题，无法解决，所以我决定继续做其他事情。这是我检查上传的文件是否是以前的"图像"的方法之一。我不认为有什么好方法可以检查文件是否真的是图像，但它确实对我有效，当时我想不出其他什么了。
<?php
if(isAnImage($routetoyourfile)) {
//Move the file
} else {
//Delete it
}
function isAnImage($fileroute) {
$ext = pathinfo($fileroute, PATHINFO_EXTENSION);
if($ext != "jpg" && $ext != "jpeg" && $ext != "png" && $ext != "JPG" && $ext != "PNG" && $ext != "JPEG") {
return 0;
} else {
return 1;
}
}
?>