Quick php question

[Paramount]

Hi all,

I'm not a pro by any means but know the extreme basics of ASP VB. I know that IF statements can leak outside of the % tags, for basic example:

<% IF condition THEN %>

[Enter a load of html here]

<% ELSE %>

[More html here]

<% END IF %>


I'm trying to get to grips with the equivilent in php. Am I right in saying that every line of html produced as a result of an IF statement needs to have 'echo' in front of it, and stay within the php tag? Or can it be done similar to ASP?

 

[Ryan0r]

>> http://uk2.php.net/manual/en/control-structures.if.php

Bookmark www.php.net Verrrrry handy

 

[Paramount]

Lovely, thankyou. Had a quick look around but I'm so new to this I didn't know what I was looking for.

 

[Ryan0r]

In that case, to answer your question more fully:

You don't have to use echos - you can have anything in there. You can increment (add one to) a counter, assign a value to a variable, etc etc. It'll simply process everything within the statement if the arguement (if <condition>) is met.

Have a good read of that site (remember to scroll down for user examples of real world snippets of code) or get yourself a decent "Teach Yourself..." PHP book to work through

 

[rctneil]

Commonly, if your wanting to print out the html within the <?php and ?> tags then you will need to do it using an echo statement such as:

<?php echo '<p>Hello</p>'; ?>

so for an if statement, it could be done like so:

<?php

$num = 1;

if ($num == 1) {
?>
<p>Num does equal 1
<?php
} else {
?>
Num does not equal 1
<?php
}

?>

So you can hope in and out of php throguhout your HTML. Just remember to use echo or something similar when outputting standard HTML within a php script.


I hope this is correct. Been doing PHP for a while but still learning.

Feel free to correct me if I am wrong.

Thanks

Regards,
Neil

 

[RobH]

You can do it all without jumping out of the php tags:

<?php

$num = 1;

if ($num == 1) {
	$str = '<p>Num does equal 1';
} else {
	$str = 'Num does not equal 1';
}

echo $str;

?>

 

[rctneil]

yep, thats another way

 

[suarve]

You can do it all without jumping out of the php tags:

<?php

$num = 1;

if ($num == 1) {
    $str = '<p>Num does equal 1';
} else {
    $str = 'Num does not equal 1';
}

echo $str;

?>

If you're outputting a lot of stuff, that way is generally fastest (and most neat imo).