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php is_writable() function

Chinese translationRecent Updates：2018-04-19 09:42:48

UK ['raɪtəbl] US ['raɪtəbəl]

adj. Can be written down, can be written down

php is_writable() function Video explanation

php is_writable() function syntax

Function:Judge whether the file is writable

Syntax: is_writable(file)

##Parameters:

ParametersDescriptionfile Required. Specifies the documents to be checked.

Description: Returns true if the file exists and is writable. The file parameter can be a directory name that allows writability checking.

php is_writable() function example

<?php
$file = is_writable("./test.txt");
if($file == 1)
{
    echo "该文件是可写的";
}else{
    echo "该文件不可写";
}
?>

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