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This article mainly introduces PHP how to use the is_writeable function, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

Is_writeable-determines whether a given file name is writable

Bool is_writable (string $filename) / / returns TRUE if the file exists and is writable. The filename parameter can be a directory name that allows writeability checks.

Parameter: the name of the file to be checked by filename.

$filename = 'd:\ test\ test.txt';if (is_writeable ($filename)) {echo 'The file is writeable';} else {echo' The file is not writeable';} / / The file is writeable Thank you for reading this article carefully. I hope the article "how PHP uses is_writeable function" shared by the editor will be helpful to you. At the same time, I hope you will support us, pay attention to the industry information channel, and more related knowledge is waiting for you to learn!

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