borantula/processwire-3-namespace-migrator.php

## processwire-3-namespace-migrator.php
<?php
/**
 * This script attempts to add namespace Processwire to every .php and .module file in the given directory.
 * It worked fine for my project but I cannot guarantee for you, so PLEASE take a backup or two before you
 * attempt to try it.
 *
 * To use it put this in your root folder and navigate with your browser to the file like
 * example.com/processwire-3-namespace-migrator.php
 * Also you should disable the compiler by setting $config->templateCompile=false; in your /site/config.php.
 *
 * By default it assumes ./site/templates folder but
 * I tried it with a module which is giving errors due to namespaces and worked fine.
 *
 * If you are doing this in a production environment, THAT YOU NORMALLY DEFINITELY SHOULD NOT,
 * delete the file after you're done.
 */


function fixIfStartingWithPhp($path, $firstLine)
{


    $arr = file($path);

    $l1 = '<?php namespace Processwire;?>' . "\n";

    array_unshift($arr, $l1);

    file_put_contents($path, implode($arr));
    return $line = fgets(fopen($path, 'r'));

}

?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-xs-12">
            <style>
                .filename {
                    padding: 5px 10px;
                    margin: 2px 0;
                }

            </style>

            <?php

            // you can change the directory for your needs.
            $Directory = new RecursiveDirectoryIterator('./site/templates');
            $Iterator  = new RecursiveIteratorIterator($Directory);
            $regexes   = [];
            $regexes[] = new RegexIterator($Iterator, '/^.+\.php$/i', RecursiveRegexIterator::GET_MATCH);
            $regexes[] = new RegexIterator($Iterator, '/^.+\.modules$/i', RecursiveRegexIterator::GET_MATCH);

            $countSuccess = 0;
            $countFail    = 0;

            foreach ($regexes as $regex) {
                foreach ($regex as $key => $path) {
                    $path         = $path[0];
                    $contents     = htmlentities(file_get_contents($path));
                    $hasNamespace = strpos(($contents), 'namespace Processwire');
                    if ($hasNamespace) {
                        $countSuccess++;
                    } else {

                        $countFail++;
                        $line      = fgets(fopen($path, 'r'));
                        $lineFixed = fixIfStartingWithPhp($path, $line);
                    }
                    ?>
                    <?php if ($hasNamespace): ?>
                        <div class="bg-success filename">
                            <h3><?= $key + 1; ?> - <?= $path; ?></h3>

                        </div>
                    <?php else: ?>
                        <div class="bg-danger filename">
                            <h3><?= $key + 1; ?> - <?= $path; ?></h3>
                            <pre><?= htmlspecialchars($line); ?></pre>
                            <pre><?= htmlspecialchars($lineFixed); ?></pre>
                        </div>
                    <?php endif; ?>

                    <?php

                }
            }


            ?>

            <div class="bg-primary">
                <p>Success: <?= $countSuccess; ?></p>
                <p>Fail: <?= $countFail; ?></p>
            </div>
        </div>
    </div>
</div>
</body>
</html>
	<?php
	/**
	* This script attempts to add namespace Processwire to every .php and .module file in the given directory.
	* It worked fine for my project but I cannot guarantee for you, so PLEASE take a backup or two before you
	* attempt to try it.
	*
	* To use it put this in your root folder and navigate with your browser to the file like
	* example.com/processwire-3-namespace-migrator.php
	* Also you should disable the compiler by setting $config->templateCompile=false; in your /site/config.php.
	*
	* By default it assumes ./site/templates folder but
	* I tried it with a module which is giving errors due to namespaces and worked fine.
	*
	* If you are doing this in a production environment, THAT YOU NORMALLY DEFINITELY SHOULD NOT,
	* delete the file after you're done.
	*/


	function fixIfStartingWithPhp($path, $firstLine)
	{


	$arr = file($path);

	$l1 = '<?php namespace Processwire;?>' . "\n";

	array_unshift($arr, $l1);

	file_put_contents($path, implode($arr));
	return $line = fgets(fopen($path, 'r'));

	}

	?>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>Title</title>
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
	</head>
	<body>
	<div class="container">
	<div class="row">
	<div class="col-xs-12">
	<style>
	.filename {
	padding: 5px 10px;
	margin: 2px 0;
	}

	</style>

	<?php

	// you can change the directory for your needs.
	$Directory = new RecursiveDirectoryIterator('./site/templates');
	$Iterator = new RecursiveIteratorIterator($Directory);
	$regexes = [];
	$regexes[] = new RegexIterator($Iterator, '/^.+\.php$/i', RecursiveRegexIterator::GET_MATCH);
	$regexes[] = new RegexIterator($Iterator, '/^.+\.modules$/i', RecursiveRegexIterator::GET_MATCH);

	$countSuccess = 0;
	$countFail = 0;

	foreach ($regexes as $regex) {
	foreach ($regex as $key => $path) {
	$path = $path[0];
	$contents = htmlentities(file_get_contents($path));
	$hasNamespace = strpos(($contents), 'namespace Processwire');
	if ($hasNamespace) {
	$countSuccess++;
	} else {

	$countFail++;
	$line = fgets(fopen($path, 'r'));
	$lineFixed = fixIfStartingWithPhp($path, $line);
	}
	?>
	<?php if ($hasNamespace): ?>
	<div class="bg-success filename">
	<h3><?= $key + 1; ?> - <?= $path; ?></h3>

	</div>
	<?php else: ?>
	<div class="bg-danger filename">
	<h3><?= $key + 1; ?> - <?= $path; ?></h3>
	<pre><?= htmlspecialchars($line); ?></pre>
	<pre><?= htmlspecialchars($lineFixed); ?></pre>
	</div>
	<?php endif; ?>

	<?php

	}
	}


	?>

	<div class="bg-primary">
	<p>Success: <?= $countSuccess; ?></p>
	<p>Fail: <?= $countFail; ?></p>
	</div>
	</div>
	</div>
	</div>
	</body>
	</html>