<?php
error_reporting(E_ALL);
ini_set('display_errors' ,1);
//expression to be found in file name
$find = '.5010.';
//directory name
//we will store renamed files here
$dirname = '5010';
if(!is_dir($dirname))
mkdir($dirname, 0777);
//read all files from a directory
//skip directories
$directory_with_files = './';
$dh = opendir($directory_with_files);
$files = array();
while (false !== ($filename = readdir($dh)))
{
if(in_array($filename, array('.', '..')) || is_dir($filename))
continue;
$files[] = $filename;
}
//iterate collected files
foreach($files as $file)
{
//check if file name is matching $find
if(stripos($file, $find) !== false)
{
//open file
$handle = fopen($file, "r");
if ($handle)
{
//read file, line by line
while (($line = fgets($handle)) !== false)
{
//find REF line
$refid = 'REF*2U*';
if(stripos($line, $refid) !== false)
{
//glue refernce numbers
//check if reference number is not empty
$refnumber = str_replace(array($refid, '~'), array('', ''), $line);
if($refnumber != '')
{
$refnumber = '_'. $refnumber .'_';
$filerenamed = str_replace($find, $refnumber, $file);
copy($file, $dirname . '/' . $filerenamed);
}
echo $refnumber . "\n";
}
}
//close file
fclose($handle);
}
}
}