CODEWITHSUNDEEP
php
Nrc
Nrc

Reputation: 9797

Detect paragraph in a form

How can I detect that there is different paragraphs in a form? In this example if the user writes different paragraphs, the echo puts all toguether. I tried white-space:pre and it did not work. I do not know what else can I do to echo the text with <p>?

CSS:

#text {  
    white-space:pre;
}

HTML:

<form action='normal-html.php' method='post'> 
<textarea id="text" name='text' rows='15' cols='60'></textarea> <br/> 
<input type='submit' value='Convertir a html' /> 
</form> 

<br />

<?php
$text = $_POST[text];
echo $text;
?>

Upvotes: 4

Views: 1987

Answers (2)

Fluffeh
Fluffeh

Reputation: 33522

This sounds like a job for http://php.net/manual/en/function.nl2br.php

string nl2br ( string $string [, bool $is_xhtml = true ] )

Returns string with '<br />' or '<br>' inserted before all 
newlines (\r\n, \n\r, \n and \r).

You can use this as you echo out the data, so that way you are never changing what is in the database - or you can simply alter the user input as you save it to the database. Personally I am a fan of the first option, but whatever works best for your application.

Edit: If you want to use only <p> tags, you could also do this using str_replace:

$text = '<p>';
$text.= str_replace('\n', '</p><p>', $_POST[text]);

The \n is generally a new line, depending on how it is read, you may need to use \r\n and the string replace will do the rest. This will leave a spare <p> on the end of the string, but you see where this is going.

Upvotes: 5

fditz
fditz

Reputation: 882

You can use the explode function (php manual page):

$your_array = explode("\n", $your_string_from_db);

Example:

$str = "Lorem Ipsum\nAlle jacta est2\nblblbalbalbal";
$arr = explode("\n", $str);

foreach ( $arr as $item){
   echo "<p>".$item."</p>";
}

Output:

 Lorem Ipsum
 Alle jacta est 
 blblbalbalbal

Upvotes: 1

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