phpweb 上传

ini_set('upload_max_filesize', '10M');
ini_set('post_max_size', '10M');

$allowed_types = array('image/jpeg', 'image/png', 'application/pdf');
if (in_array($_FILES['file']['type'], $allowed_types)) {
    // 处理上传
} else {
    echo "文件类型不允许";
}

upload_tmp_dir = /path/to/tmp

<?php
if ($_FILES['file']['error'] == UPLOAD_ERR_OK) {
    $fileTmpPath = $_FILES['file']['tmp_name'];
    $fileName = $_FILES['file']['name'];
    $fileSize = $_FILES['file']['size'];
    $fileType = $_FILES['file']['type'];
    $fileNameCmps = explode(".", $fileName);
    $fileExtension = strtolower(end($fileNameCmps));

    $allowedExtensions = array("jpg", "jpeg", "png", "gif");

    if (in_array($fileExtension, $allowedExtensions)) {
        if ($fileSize < 2000000) { // 2MB
            $dest_path = 'uploads/' . $fileName;
            if (move_uploaded_file($fileTmpPath, $dest_path)) {
                echo "文件上传成功";
            } else {
                echo "文件上传失败";
            }
        } else {
            echo "文件太大";
        }
    } else {
        echo "文件类型不允许";
    }
} else {
    echo "上传错误：" . $_FILES['file']['error'];
}
?>