<?php
$open = $_GET['open'];
if($open != NULL) {
$fileopen = "$open";
$fopen = fopen($fileopen, "r");
$sizeopen = filesize($fileopen);
$contentsopen = fread($fopen, $sizeopen);
$explodeopen = explode("\n", $contentsopen);
$countopen = count($explodeopen);
}
$file = "text.txt";
$fopen = fopen($file, "r");
$size = filesize($file);
$contents = fread($fopen, $size);
$explode = explode("\n", $contents);
$count = count($explode);
echo "
<form method=\"post\" action=\"\">
<div><textarea name=\"text\" style=\"width: 500px; height: 200px;\">";if($contentsopen != NULL) { echo "$contentsopen"; } echo "</textarea></div>
<div><input type=\"submit\" name=\"submit\" value=\"submit\" class=\"button\"></div>
</form>
";
if(isset($_POST['submit'])) {
$text = $_POST['text'];
$arr = explode("\n", $text);
$arr = array_unique($arr);
for($i = 0; $i < $count; $i++){
$replace = str_replace($arr, "", $explode);
$fopen = fopen($file, "w+");
$fwrite = fwrite($fopen, $replace[$i]);
}
fclose($fopen);
echo "It works";
}
?>
