PHP determines whether a file is writable Example code_PHP tutorial

php判断文件是否可写：

$filename = test.txt;
if (is_writable($filename)) {
        echo The file is writable;
} else {
        echo The file is not writable;
}
?>

http://www.bkjia.com/PHPjc/486050.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/486050.htmlTechArticlephp判断文件是否可写： ?php $filename = test.txt; if (is_writable($filename)) { echo The file is writable; } else { echo The file is not writable; } ?...