Search and replace entire directory file contents - php

Question

I need to re-write multiple files in a single directory based on the contents of a single CSV file.
For example the CSV file would contain something like this:
define("LANG_BLABLA", "NEW");
In one of the files in the directory it would contain this:
define("LANG_BLABLA", "OLD");
The script will search through the directory and any occurrences where the CSV "LANG_BLABLA" matches the old directory LANG it will update the "OLD" with the "NEW"
My question is how exactly can I list the contents of the files in the directory in 1 array so I can easily search through them and replace where necessary.
Thanks.

Answer 1

Searching through a directory is relatively easy:
<?
clearstatcache();
$folder = "C:/web/website.com/some/folder";
$objects = scandir($folder, SCANDIR_SORT_NONE);
foreach ($objects as $obj) {
if ($obj === '.' || $obj === '..')
continue; // current and parent dirs
$path = "{$folder}/{$obj}";
if (strcasecmp(substr($path, -4), '.php') !== 0)
continue // Not a PHP file
if (is_link($path))
$path = realpath($path);
if ( ! is_file($path))
continue; // Not a file, probably a folder
$data = file_get_contents($path);
if ($data === false)
die('Some error occured...')
// ...
// Do your magic here
// ...
if (file_put_contents($path, $data) === false)
die('Failed to write file...');
}
As for modifying PHP files dynamically, it is probably a sign that you need to put that stuff into a database or in-memory data-store... MySQL, SQLite, MongoDB, memcached, Redis, etc. should do. Which you should use would depend on the nature of your project.

Answer 2

You can parse a CSV file into an array using fgetcsv http://php.net/manual/en/function.fgetcsv.php

Answer 3

First of all I would not recommend this workflow if you working with .php files. Try to centralize your define statements and then change it in a single location.
But here is a solution that should work for you csv files. It's not complete, you have to add some of your desired logic.
/**
* Will return an array with key value coding of your csv
* #param $defineFile Your file which contains multiple definitions e.g. define("LANG_BLABLA", "NEW");\n define("LANG_ROFL", "LOL");
* #return array
*/
public function getKeyValueArray($defineFile)
{
if (!file_exists($defineFile)) {
return array();
} else {
$fp = #fopen($defineFile, 'r');
$values = explode("\n", fread($fp, filesize($defineFile)));
$newValues = array();
foreach ($values as $val) {
preg_match("%.*\"(.*)?\",\s+\"(.*)?\".*%", $val, $matches);
$newValues[$matches[1]] = $matches[2];
}
}
}
/**
* This is s stub! You should implement the rest yourself.
*/
public function updateThings()
{
//Read your definition into an array
$defs=$this->getKeyValueArray("/some/path/to/your/file");
$scanDir="/your/desired/path/with/input/files/";
$otherFiles= scandir($scanDir);
foreach($otherFiles as $file){
if($file!="." && $file!=".."){
//read in the file definition
$oldDefinitionArray=$this->getKeyValueArray($scanDir.$file);
//Now you have your old file in an array e.g. array("LANG_BLABLA" => "OLD")
//and you already have your new file in $defs
//You now loop over both and check for each key in $defs
//if its value equals the value in the $oldDefinitionArray.
//You then update your csv or rewrite or do whatever you like.
}
}
}