php mysql storing line breaks in text area in database

Question

I have an input textarea and I would like to store the line breaks that a user makes in the text area in the database, so that it echoes the output text the same way as in the input text

eg:

Some text some text some text some text


new line some text some text new line 

new line some text new line some text

this is my current upload script:

$sql = "insert into people (price, contact, category, username, fname, lname, expire, filename) values (:price, :contact, :category, :user_id, :fname, :lname, now() + INTERVAL 1 MONTH, :imagename)";
$q = $conn->prepare($sql) or die("failed!");
$q->bindParam(':price', $price, PDO::PARAM_STR);
$q->bindParam(':contact', $contact, PDO::PARAM_STR);
$q->bindParam(':category', $category, PDO::PARAM_STR);
$q->bindParam(':user_id', $user_id, PDO::PARAM_STR);
$q->bindParam(':fname', $fname, PDO::PARAM_STR);
$q->bindParam(':lname', $lname, PDO::PARAM_STR);
$q->bindParam(':imagename', $imagename, PDO::PARAM_STR);
$q->execute();

Answer 1

The line breaks in the text area are linebreak characters such as \\n . These are not rendered in HTML and thus they won't show up if you simply echo the output. You can echo inside of a <textarea> or a <pre> tag or you can use the nl2br() to replace new lines with <br> tags so that it can be displayed as HTML.

Answer 2

You can escape the line breaks before storing by using mysql_real_escape_string

Documentation here: http://php.net/manual/en/function.mysql-real-escape-string.php

Answer 3

您也可以使用javascript通过使用替换来将文本分解为\\n to <br>

str.replace("\n", "<br />","g");

Answer 4

I had the same problem, and this is working now :

$query = "UPDATE your_table 
         SET your_text_field = 'line 1'" . '\n' . "'line2' 
         WHERE your_id_field = " . $id . "';";