在服务器文件夹上上传图像的问题
issues in uploading image on server folder
我有以下代码可以将图片上传到服务器文件夹,但问题是即使我上传的图片格式正确,它也会给出格式信息
我得到的错误是
Sorry, only JPG, JPEG, PNG & GIF files are allowed
即使图像是 jpg/jpeg/png/gif 格式
我使用的代码是
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST")
{
$target_dir = "profileimg/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"]))
{
if($check !== false)
{
//echo "File is an image - " . $check["mime"] . ".";
$uploadOk = 1;
}
else
{
echo "File is not an image.";
$uploadOk = 0;
}
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000)
{
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" || $imageFileType != "png" || $imageFileType != "jpeg" || $imageFileType != "gif" )
{
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0)
{
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
}
else
{
$new_filename = $target_dir . uniqid() . '.' . $imageFileType;
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $new_filename))
{
echo $new_filename;
}
}
}
?>
<form role="form" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="POST" enctype="multipart/form-data">
<input type="file" class="form-control" id="input01" name="fileToUpload"
<button>Submit Form</button>
</form>
任何人都可以更正代码
您的表单标签需要 enctype="multipart/form-data">
才能上传文件
SO 变化
<form role="form" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="POST">
到
<form role="form" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="POST" enctype="multipart/form-data">
否则你的$_FILES
变量为空
并将您的验证更改为
$allowed = array('gif', 'png', 'jpg', 'jpeg');
$filename = $_FILES['fileToUpload']['name'];
$ext = pathinfo($filename, PATHINFO_EXTENSION);
if (!in_array($ext, $allowed)) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
Sorry, only JPG, JPEG, PNG & GIF files are allowed
你只检查 jpg 而不是 JPG 或 Jpg
检查您的文件的扩展类型。
放
strtolower($imageFileType)
我有以下代码可以将图片上传到服务器文件夹,但问题是即使我上传的图片格式正确,它也会给出格式信息 我得到的错误是
Sorry, only JPG, JPEG, PNG & GIF files are allowed
即使图像是 jpg/jpeg/png/gif 格式
我使用的代码是
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST")
{
$target_dir = "profileimg/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"]))
{
if($check !== false)
{
//echo "File is an image - " . $check["mime"] . ".";
$uploadOk = 1;
}
else
{
echo "File is not an image.";
$uploadOk = 0;
}
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000)
{
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" || $imageFileType != "png" || $imageFileType != "jpeg" || $imageFileType != "gif" )
{
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0)
{
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
}
else
{
$new_filename = $target_dir . uniqid() . '.' . $imageFileType;
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $new_filename))
{
echo $new_filename;
}
}
}
?>
<form role="form" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="POST" enctype="multipart/form-data">
<input type="file" class="form-control" id="input01" name="fileToUpload"
<button>Submit Form</button>
</form>
任何人都可以更正代码
您的表单标签需要 enctype="multipart/form-data">
才能上传文件
SO 变化
<form role="form" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="POST">
到
<form role="form" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="POST" enctype="multipart/form-data">
否则你的$_FILES
变量为空
并将您的验证更改为
$allowed = array('gif', 'png', 'jpg', 'jpeg');
$filename = $_FILES['fileToUpload']['name'];
$ext = pathinfo($filename, PATHINFO_EXTENSION);
if (!in_array($ext, $allowed)) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
Sorry, only JPG, JPEG, PNG & GIF files are allowed
你只检查 jpg 而不是 JPG 或 Jpg
检查您的文件的扩展类型。 放
strtolower($imageFileType)