PHP string / word wrapper

I wrote this function because php's wordwrap() doesn't fit the needs of a regular web page. Just enter for this function the string, the row limit and if you like the divider. This function breaks the line after the character limit is reached.

<?php
function text_wrap($log_text, $limit, $divider=" ") {
    $words = explode($divider, $log_text);
    $word_count = count($words);
    $char_counter = 0;
    $block = "";
    foreach ($words as $value) {
        $chars = strlen($value);
        $block .= $value;
        $char_counter = $char_counter + $chars;
        if ($char_counter >= $limit) {
            $block .= " \\n ";
            $char_counter = 0;
        } else {
            $block .= " ";
        }
    }
    return rtrim($block);
} 

// usage:
echo text_wrap($some_text_with_100chars, 25, " ");
// this function call will produce 4 rows of text (maybe more)
?>