[SOLVED] Echoing before if

[grahamb314]

Hi all

I have an if statement which adds 1 to a variable.

 

On my page I want it to be echoed at the top of the page. but I have several if's, echoing different things in different places.

 

Is there any way I can get it to echo before the if (And take into account what the if does to it)?

 

Thanks

[Goldeneye]

Well providing some code might make it a little easier to help you.

[Stooney]

Once you echo something, it's already sent to the browser and cannot be changed.  You however use output buffering, but that wouldn't make any sense based on your description.

[grahamb314]

Here is an example:

 

$englishnumber = null
if ($number = 0)
{$englishnumber = zero}

echo $englishnumber;

 

I want to echo the englishnumber before the if:

 

echo $englishnumber; // I want this to echo "zero"

$englishnumber = null
if ($number = 0)
{$englishnumber = zero}

Is there some special variable that can do this?

 

[Stooney]

If you want it to echo zero, then it's value must be zero when you echo it.  There's no way around that.

[grahamb314]

So the only way I can do it, is to move the whole if statement to the top of the page and echo under it?

[Stooney]

Based on how little you've really explained, I'm going to say yes.  It would help to see what you're trying to do.

[RichardRotterdam]

You might be looking for a shorthand notation its basicly puts the ifelse into the echo

 

<?php
$englishnumber=0;
echo($englishnumber==0 || $englishnumber==NULL)?"zero":$englishnumber;
?>

[grahamb314]

okay,

I have an if statement that echos an error message under certain conditions

 

I want the error message to be displayed on the top of the php page

but i want to leave the if statement at the bottom of the code

 

 

[grahamb314]

You might be looking for a shorthand notation its basicly puts the ifelse into the echo

 

<?php
$englishnumber=0;
echo($englishnumber==0 || $englishnumber==NULL)?"zero":$englishnumber;
?>

 

so I could do:

 

<?php
$englishnumber=0;
echo($englishnumber>0 || $englishnumber==NULL)?"There are one or more errors":$englishnumber;
?>

Is this like saying if($nooferrors>0)

{echo "there are one or more errors"

 

The problem is that I have serveral if's which add one to the variable if there is an error  (Each if checks for a different error)

 

 

[DamienRoche]

It's impossible.

 

So you want to return the value of a variable that is set in an if statement BEFORE the if statement runs?

 

Do you see how this is impossible?

 

The echo has to come after the if statement...after the variable has been set.

 

Best,

 

Damien.

[grahamb314]

I thought it wouldnt be possible, but i thought there might be a special variable or something that might be able to do it.

 

Could I not make another page to hold the variable and then echo it in ?

[Adam]

Can echo a variable in any way you like, but unless you've literally set the variable (ie. $var = 'something' .. $var has absoloutley no value, the script cant guess or assume the value...

 

Adam

[RichardRotterdam]

It seems to me you are trying to solve a problem that really isnt the main problem. I asume you have a certain situation and you want some kind of result out of it.

 

Can you explain the following things:

1. what is your input

2. what should come out of it/The result

 

 

[grahamb314]

i want a php page that just says ERROR! at the top is there is an error,

 

there is an error when the error variable is > 0

 

The error variable is set with a few if's :

if condiiton 1 is true then $numberoferrors = $numberoferrors + 1

 

if condiiton 2 is true then $numberoferrors = $numberoferrors + 1

 

if condiiton 3 is true then $numberoferrors = $numberoferrors + 1

 

 

etc etc

 

This page has some other echoing on it like echoing if the data has been sent to the DB,

the data can only be sent if $numberoferrors = 0

(This code is at the bottom of the page)

 

I want a big red thing on the top of the page to say THERE ARE ERRORS! if $numberoferrors >0 but the if's which set the variable are near the bottom of the page.

 

its a tricky one, I understand

 

 

[RichardRotterdam]

doesn't sound tricky at all.  It seems you just want to validate some kind of data and if it passes it does something otherwise it shows an error. But what is it you want to validate?

[grahamb314]

doesn't sound tricky at all.  It seems you just want to validate some kind of data and if it passes it does something otherwise it shows an error. But what is it you want to validate?

 

Well the data is posted from a form on another page.

the if works fine)It checks to see if the text is less than 50 characters) if it doesnt then it makes the error variable +1

i just want to echo the variable at the top of the page when it is >0

[RichardRotterdam]

Then your main problem is form validation. This forum is loaded with form validation questions. you might wanna do a search on "form validation" on this form that will surely help you. otherwise just google up php form validation.

if that doesnt help. post some code of your form you want to validate

[grahamb314]

My validation works fine though.

All I want is for an error message to be displayed on the top of the page - Maybe this is more of a Javascript thing?

 

Thanks for your help anyways

I've decided to more the if statements to the top of my code and echo an error under them

 

thanks again,

 

 

[DamienRoche]

I'm thinking maybe this is what you're looking for:

 

if (something blah something){ $error = $error +1;}
if (something blah something){ $error = $error +1;}
if (something blah something){ $error = $error +1;}

 

Then, I'm guessing you want to count the errors and echo how many?

 

echo "$error";

 

Your issue is that, like you said, the ifs are at the bottom. Well, they can't be at the bottom. They have to be right after the form input.

 

Like so:

 

$varfromform = $_POST['inputfromform'];

$error = 0;
if($varfromform ==""){$error = $error +1;}

if($error > 0){"ERRORS!"; [b]return;[/b]}

That's it. If there are errors, no more of the script will work.

It's so much tricky as badly implemented. Why must the ifs be right at the bottom?

Best Regards,

Damien.