get system total disk space in php

To get the total disk space of the system in PHP, the disk_total_space() function can be used. This function returns the total size of a given directory in bytes. If no directory is specified, it will return the total size of the partition the PHP script is running on. Here is an example code:

main.php
<?php
$total_space = disk_total_space("/");
echo "Total disk space: " . $total_space . " bytes";
?>
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In this example, disk_total_space() function is called with the root directory path “/”. The function returns total disk space in bytes and prints it using echo. This code will output the total disk space in bytes of the system where it is running.