BFS Search and Replace.php

<?php
$find = array("findWord1", "findWord2");
$replace = array("replaceWord1", "replaceWord2");

// wouldn't suggest keeping the file in the same directory as being search
// so make the line below a string of an absolute folder location
$home = getcwd();

$all = array();
function bfs($path) {
        global $all;
        $temp = array();
        if($h = opendir($path)) {
                while(($f = readdir($h)) != false) {
                        if($f == "." || $f == "..") continue;
                        if(is_dir($path."/".$f)) array_push($temp, $f);
                        array_push($all, $path."/".$f);
                }
                closedir($h);
                while(($f = array_pop($temp)) != NULL) {
                        bfs($path."/".$f);
                }
        }
}
bfs($home);
while(($el = array_pop($all))!= NULL) {
        $i = strrpos($el, "/");
        $last = str_replace($find, $replace, substr($el, $i));
        $name = substr($el, 0, $i).$last;
        if($name != $el) {
                echo $el."\n".$name."\n\n";
                rename($el, $name);
        }
        if(!is_dir($name)) {
                $fh = fopen($name, 'r');
                $data = fread($fh, filesize($name));
                fclose($fh);
                $new_data = str_replace($find, $replace, $data);
                if($data != $new_data && filesize($name) != 0)  {
                        echo "REWRITE: ".$name."\n";
                        $fh = fopen($name, 'w');
                        fwrite($fh, $new_data);
                        fclose($fh);
                }
        }
}

?>