25 lines
725 B
PHP
25 lines
725 B
PHP
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<?php
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header("Access-Control-Allow-Origin: *");//设置允许跨域，用来判断题目环境是否开启
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if (!empty($_FILES)):
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$ext = pathinfo($_FILES['file_upload']['name'], PATHINFO_EXTENSION);
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if (!in_array($ext, ['gif', 'png', 'jpg', 'jpeg'])) {
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die('不允许的文件类型.');
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}
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$new_name = 'uploadfiles/' . $_FILES['file_upload']['name'];
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if(!move_uploaded_file($_FILES['file_upload']['tmp_name'], $new_name)){
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die('上传目录无写权限.');
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}
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die('上传成功，文件路径: ' . $new_name);
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else:
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?>
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<h2>本页面使用白名单过滤</h2>
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<form method="post" enctype="multipart/form-data">
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请上传图片: <input type="file" name="file_upload">
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<input type="submit">
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</form>
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<?php
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endif;
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