查找上传文件的扩展名 (PHP)
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Finding Extension of uploaded file (PHP)
提问by Peter
Possible Duplicate:
What's the best way/practice to get the extension of a uploaded file in PHP
Can We find out the extension of the original file from the $_FILES["file"]["tmp_name"] ? For example jpg or png etc? Thanks.
我们可以从 $_FILES["file"]["tmp_name"] 中找出原始文件的扩展名吗？例如jpg或png等？谢谢。
回答by Dejan Marjanovic
$name = $_FILES["file"]["name"];
$ext = end((explode(".", $name))); # extra () to prevent notice
echo $ext;
回答by JKS
You could use pathinfo():
你可以使用pathinfo()：
$path_parts = pathinfo($_FILES["file"]["name"]);
$extension = $path_parts['extension'];
回答by GWW
Yes you can use $_FILES['file']['name']to get the original name of the uploaded file. Just keep in mind that the extension may not always represent the real contents of the file.
是的，您可以使用它$_FILES['file']['name']来获取上传文件的原始名称。请记住，扩展名可能并不总是代表文件的真实内容。
回答by thf
Yes, assuming it's accurately named. It will retain its original name and extension.
是的，假设它被准确命名。它将保留其原始名称和扩展名。
