Question

I want to create like a notepad in js and php
but I want it to add some spaces for each new line
I thought I can make it with a textarea, but I dont know how to
This is my idea:

<textarea name="text"></textarea>

and in PHP

$text = trim($_POST['text']);
$textAr = explode("\n", $text);
$textAr = array_filter($text, 'trim'); // remove any extra \r characters left behind

foreach ($textAr as $line) {
    $height = $height + $line_height; 
} 

But not really sure it works. Any idea?

Answer 1

You are basically discarding the explode step. Try this instead:

$textAr = array_filter(preg_split("/[\r\n]+/",$_POST['text']));

This basically allows any format of newline, and removes empty lines. You can then pass $textAr through foreach.