What are the potential reasons for receiving a value of 1 even when there are no ZIP files in the directory?

The potential reason for receiving a value of 1 even when there are no ZIP files in the directory could be due to the fact that the glob function returns an array with a numerical index starting from 0, and if no ZIP files are found, it returns false which is equivalent to 1 when used in a numerical context. To solve this issue, you can check if the result of the glob function is false before counting the number of ZIP files. 

$zipFiles = glob('path/to/directory/*.zip');
if ($zipFiles === false) {
    $numZipFiles = 0;
} else {
    $numZipFiles = count($zipFiles);
}
echo $numZipFiles;

Keywords

PHP ZIP files directory file_exists() error detection

Related Questions