PHP short open tags fixer

shortags_fixer.php

<?php
/**
 * Short Open Tags fixer.
 * 
 * Usage:
 * $ php -d short_open_tag=On -f shortags_fixer.php path/to/file.php
 * $ for i in $(find ./ -iname "*.phtml"); do php -d short_open_tag=On -f shortags_fixer.php $i > ~/fixed.txt && cat ~/fixed.txt > $i; done
 */

function fix($file) 
{
    if (!file_exists($file)) {
        return;
    }
    $tokens = token_get_all(file_get_contents($file));
    $output = '';
    foreach($tokens as $token) {
        if (!is_array($token)) {
            $output .= $token;
            continue;
        }
        list($index, $code) = $token;
        $convertions = array(
            T_OPEN_TAG           => '<?php ',
            T_OPEN_TAG_WITH_ECHO => '<?php echo '
        );
        $output .= isset($convertions[$index]) ? $convertions[$index] : $code;
    }
    return $output;
}

if (isset($argv[1])) {
    echo fix($argv[1]);
} else {
    echo "Usage: php -d short_open_tag=On -f shortags_fixer.php path/to/file.php\n";
}