SplFileInfo::isWritable

(PHP 5 >= 5.1.2, PHP 7, PHP 8)

SplFileInfo::isWritable — Tells if the entry is writable

public SplFileInfo::isWritable(): bool

Checks if the current entry is writable.

此函数没有参数。

Returns true if writable, false otherwise;

示例 #1 SplFileInfo::isWriteable() example

<?php
$info = new SplFileInfo('locked.jpg');
if (!$info->isWriteable()) {
    echo $info->getFilename() . ' is not writeable';
}
?>

以上示例的输出类似于：

locked.jpg is not writeable