下面的代码演示了php中如何获取用户上传的文件，并限制文件类型的一般图片文件，最后保存到服务器$allowedExts = array("gif", "jpeg", "jpg", "png");$extension = end(explode(".", $_FILES["file"]["name"]));if ((($_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")|| ($_FILES["file"]["type"] == "image/png"))&& ($_FILES["file"]["size"] && in_array($extension, $allowedExts)){if ($_FILES["file"]["error"] > 0){echo "Return Code: " . $_FILES["file"]["error"] . "";}else{echo "Upload: " . $_FILES["file"]["name"] . "";echo "Type: " . $_FILES["file"]["type"] . "";echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB";echo "Temp file: " . $_FILES["file"]["tmp_name"] . "";if (file_exists("upload/" . $_FILES["file"]["name"])){echo $_FILES["file"]["name"] . " already exists. ";}else{move_uploaded_file($_FILES["file"]["tmp_name"],"upload/" . $_FILES["file"]["name"]);echo "Stored in: " . "upload/" . $_FILES["file"]["name"];}}}else{echo "Invalid file";}?>复制代码上传文件, 并保存, php
php限制上传文件类型并保存上传文件
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