Fixed formType to make compatible with Symfony 2.8

<?php

$path = realpath('package/');

$directoryIterator = new RecursiveDirectoryIterator($path);
$iterator = new RecursiveIteratorIterator($directoryIterator);
$regexIterator = new RegexIterator(
    $iterator,
    '/^\/home\/ocz\/PhpstormProjects\/dev\/package\/.+\/Form\/Type.+Type.php$/',
    RecursiveRegexIterator::GET_MATCH,
    RecursiveRegexIterator::USE_KEY
);

$getBlockPrefixFunctionStr =<<<EOF


    /**
     * {@inheritdoc}
     */
    public function getBlockPrefix()
    {
        return %s;
    }
EOF;


$codeRegexGetName = "/\s{4}public\sfunction\sgetName\(\)\n\s{4}\{\s+return\s(\'[0-9a-z_]+\'|self::NAME|static::NAME);\s+}/s";
$codeRegexBlockPrefix = "/\s{4}public\sfunction\sgetBlockPrefix\(\)/s";

$callbackFilterIterator = new CallbackFilterIterator($regexIterator,
    function ($current, $filename, $iterator) use ($codeRegexGetName, $codeRegexBlockPrefix) {
        $handler = fopen($filename, 'r');
        $fileContent = fread($handler, filesize($filename));
        fclose($handler);

        $matchResultGetName = preg_match($codeRegexGetName, $fileContent);
        $matchResultGetBlockPrefix = preg_match($codeRegexBlockPrefix, $fileContent);
        return $matchResultGetName === 1 && $matchResultGetBlockPrefix === 0;
    }
);

$getContentWithIncorrectEncodingCommand = 'cat -vt %s';
$restoreEncodingCommand = 'cat -vt %s | tail -c +%s | awk \'{ print > "%s" }\'';

if (!iterator_count($callbackFilterIterator)) {
    echo 'Nothing to do.';
    die();
}

foreach ($callbackFilterIterator as $filename => $current) {
    echo 'Working on file - ' . $filename . PHP_EOL;
    $handler = fopen($filename, 'r+');
    $fileContent = fread($handler, filesize($filename));
    $matches = [];
    $matchResultGetName = preg_match($codeRegexGetName, $fileContent, $matches);
    list($originalFunc, $parameter) = $matches;
    $newFileContent = prepareNewFileContent($fileContent, $originalFunc, $parameter);
    ftruncate($handler, 0);
    fwrite($handler, $newFileContent);
    fclose($handler);
    $contentWithIncorrectEncoding = '';
    exec(sprintf($getContentWithIncorrectEncodingCommand, $filename, $filename), $contentWithIncorrectEncoding);
    $position = strrpos($contentWithIncorrectEncoding[0], '^@');
    if (false !== $position) {
        exec(sprintf($restoreEncodingCommand, $filename, $position + 3, $filename));
    }
    echo 'Converted file - ' . $filename . PHP_EOL;
}

echo 'Work successfully done !';

/**
 * @param string $fileContent
 * @param string $originalFunc
 * @param string $parameter
 */
function prepareNewFileContent($fileContent, $originalFunc, $parameter)
{
    global $getBlockPrefixFunctionStr;

    $newCode = str_replace($parameter, '$this->getBlockPrefix()', $originalFunc) .
        sprintf($getBlockPrefixFunctionStr, $parameter);

    return str_replace($originalFunc, $newCode, $fileContent);
}