root/namespace-use-order @ 1504

#!/usr/bin/php
<?php
if(!isset($_SERVER['argv'][1]) || in_array($_SERVER['argv'][1], array('--help', '-h', '-?'))) {
        help();
        exit;
}
$dir = $_SERVER['argv'][1];

$ite = new RecursiveDirectoryIterator($dir);
foreach (new RecursiveIteratorIterator($ite) as $filename => $cur) {
        updateFile($filename);
}


function updateFile($filename) {
        $useblock = $block = array();
        $isUse = $updated = false;
        foreach(file($filename) as $line) {
                if(preg_match('/^use /', $line)) {
                        $isUse = true;
                        $useblock[] = $line;
                } else {
                        if($useblock) {
                                $compare1 = implode("\n", $useblock);
                                sort($useblock);
                                $compare2 = implode("\n", $useblock);
                                $updated = $compare1 !== $compare2;
                                $block = array_merge($block, $useblock);
                                $useblock = array();
                        }
                        $isUse = false;
                        $block[] = $line;
                }
        }
        
        echo $filename;
        if($updated) {
                file_put_contents($filename, implode("", $block));
                echo "\tchanged\n";
        } else {
                echo "\tunchanged\n";
        }
}

function help() {

        echo "Usage: " . basename($_SERVER['argv'][0]) . " folder [--help]\n";
        echo "\n";
        echo "The options are as follows:\n";
        echo "  -?, --help\n";
        echo "    Show this help and exit.\n\n";
}