PHP开发之图片上传功能完整源码展示
<?php
if (in_array($_FILES["file"]["type"], array("image/gif", "image/jpeg","image/jpg"))) {
if ($_FILES["file"]["error"] > 0) //由文件上传导致的错误提示代码
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br />";
echo "Type: " . $_FILES["file"]["type"] . "<br />";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";
if (file_exists("upload/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
move_uploaded_file($_FILES["file"]["tmp_name"], // 存储在服务器的文件的临时副本的名称
"upload/" . $_FILES["file"]["name"]);
echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
}
}
}
else
{
echo "Invalid file";
}
?>
<html>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="format-detection" content="telephone=no" />
<body>
<form action="upload.php" method="post"
enctype="multipart/form-data">
<label for="file">文件名:</label>
<input type="file" name="file" id="file" />
<br />
<input type="submit" name="submit" value="上传" />
</form>
</body>
</html>第二种方法：
<?php
if (count($_FILES)) {
$retFiles = uploadFile("file");
if ($retFiles['status'] == 1) {
echo $retFiles['message'];
} else if ($retFiles['status'] == 0) {
echo "Upload: " . $retFiles["name"] . "<br />";
echo "Type: " . $retFiles["type"] . "<br />";
echo "Size: " . ($retFiles["size"] / 1024) . " Kb<br />";
echo "Temp file: " . $retFiles["temp"] . "<br />";
echo "Stored in: " . "upload/" . $retFiles["name"];
}
}
function uploadFile($fileName)
{
$files = $_FILES[$fileName];
if (!in_array($files["type"], array("image/gif","image/jpeg","image/pjpeg","image/jpeg", "image/png"))) {
return array("status" => 1, "message" => "Uploaded image format is not correct");
}
if ($files["error"] > 0) {
return array("status" => 1, "message" => "upload error");
}
if (file_exists("upload/" . $files["name"])) {
return array("status" => 1, "message" => $files["name"]." already exiss");
}
move_uploaded_file($files["tmp_name"], "upload/".$files["name"]);
return array("status" => 0, "name" => $files["name"], "type" => $files["type"], "size" => $files['size']/1024, "temp" => $files["tmp_name"]);
}
?>
<html>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta name="format-detection" content="telephone=no" />
<body>
<form action="upload.php" method="post"
enctype="multipart/form-data">
<label for="file">文件名:</label>
<input type="file" name="file" id="file" />
<br />
<input type="submit" name="submit" value="上传" />
</form>
</body>
</html>
