On the following code I'm trying to find out how to determine the value of a line in a text file. I keep getting the error below. I tried many combinations to fix but no luck. I'm new to php so I appreciate any help given.

Once I get the error resolved I'm looking for it to take the color code from the text file "defaultcolor" value and change it to the new color that equals the text box value.

I'm trying to get var $currentcolor to report back the value from the text file. That value is #123456

Here's the error

```
Warning: preg_replace(): No ending delimiter '#' found

```

Here's the lines in my text file.

```
currentcolor = #123456 
defaultcolor = #379BB9

```

Here's my php

```html
<?php
if(isset($_REQUEST['setcolor'])){
$arr = glob("css\*.css"); 
$colorcode = $_POST['defaultcolor'];    
foreach($arr as $key=>$val){
$str = file_get_contents($val);
$lines_array = file("example.txt");
$search_string = "currentcolor";

foreach($lines_array as $line) {
    if(strpos($line, $search_string) !== false) {
        list(, $new_str) = explode("=", $line);
    }
}
$currentcolor = $new_str;
$str = preg_replace($currentcolor, $colorcode, $str); 
file_put_contents($val, $str);
}
}
echo '<label id="steps">Here you can set the theme color.</label>';
echo '<br>';
echo '<Form name="default1" method="POST" action="example.php">';
echo '<label for="defaultcolor">Theme Color: </label><input style="color:#000000" type="text" id="defaultcolor" name="defaultcolor" value="#379BB9">';
echo '<br>';
echo '<input type="submit" name="setcolor" value="Set Theme Color">';
echo '</form>';
echo '<br>';
?>
```