[SOLVED] how to detect the end of a line??

[DeanWhitehouse]

how can i detect when a user starts a new line in an input form, textarea,

i was thinking, doing strlength and then doing a wordwrap, with the strlength.

Not the best idea,

any others?

[craygo]

usually the end of the line is designated by "\n".

 

Even though you usually can't see it, it's there.

 

Ray

[FVxSF]

You can preg_match for the \n

 

<?php
$strText = "This\nis only\na test";
if (preg_match('/\n/', $strText)) {
	echo "Multi Line"; // Or what ever code you'd like to add.
} else {
	echo "Single Line";
}
?>

[DeanWhitehouse]

well, when i enter stuff into a textarea, and decide to start a new line, it is displayed all on one line , i want it so that when i start a new line, it inputs this new line

[craygo]

well if you want to display lines from a text area you have to use nl2br() function.

 

echo nl2br($textarea);

 

Your browser doesn't know \n so you have to convert it to

<br>

to get it to display correctly

 

Ra

[DeanWhitehouse]

how do i convert,

preg_replace??

If os can someone show me the code?

[FVxSF]

craygo has the best solution. nl2br

 

Basically nl2br converts the \n to <br />

 

<?php
echo nl2br("This is\na test");

// Outputs: 
// This is<br />a test
?>

[craygo]

Well first what do you want to do?

 

The person fills out the text area, What then??

 

Are you storing it into a database??

Do you want to echo the results out as soon as they submit??

 

Let me know what you want to do.

 

Ray

[DeanWhitehouse]

The user enters the news, it then posts to a database, it then is displayed through a loop on the main page.

 

but, i need to change the /n to <br > how ??

[craygo]

I assume you have it going to the database just fine. So to display it just use this

 

<?php
$sql = "SELECT * FROM table";
$res = mysql_query($sql) or die(mysql_error());
while($r = mysql_fetch_assoc($res)){
echo nl2br(stripslashes($r['textarea']));
}
?>

 

Simple as that. no need to loop through each line. It will automatically convert it and display it properly. I added stripslashes in there for words like it's and such otherwise you will have slashes all over the place.

 

Ray

[FVxSF]

I'm not sure how you are saving it to your database but the following function is most likely what you're looking for.

 

http://www.php.net/nl2br