[SOLVED] Global function, echoing lots of Variables?

[Mutley]

I have a script with lots of this in:

 

	$report.="Driver: $username<BR>";
$report.="Racing Style $racingstyle<BR>";
$report.="Car: $row[name] ($row[manufacture])<BR>";
$report.="Max Speed $maxspeed<BR>";
$report.="Acceleration (0-100) $accel<BR>";
$report.="Handling (0-10) $handling<BR>";
$report.="<BR><BR>";

 

In several functions.

 

I've seen towards the bottom of the script there is a

global $report;

 

All I want to know is how can I echo all this data, has 'global' got anything to do with this? And why isn't the variable being over written every time it is done again, e.g. why isn't the above not just "<BR><BR>"? Is it todo with the fullstop at the end of the variable?

 

Thanks,

Nick.

[Mark Baker]

It's actually a full stop before the = sign, and it's a shortcut operator for string concatenation

 

"global" allows a variable defined in global scope to be accessed from within the local scope of a function

[flyhoney]

In PHP, to concatenate strings, you use the '.' operator.  '.=' is a shortcut operator that stands for this:

<?php
$string = $string . ' lolz';
// is the same as
$string .= 'lolz';
?>

 

If a variable is declared as global, that means every part of the script has access to it.

 

If you want to view the $report variable, just place

echo $report;

 

somewhere near the bottom of the script.

[wildteen88]

Beaten to it

.= is the concatenation assignment operator

 

Examples

 

// assignment operator
$var1 = 'one';
$var1 = 'two';

echo $var1 // ouputs: two

// concatenation assignment operator
$var1 .= 'one';
$var1 .= 'two';

echo $var1 // ouputs: onetwo

 

[Mutley]

Thanks a lot! I can see this coming in useful.

 

However I can't echo the data, I'm trying to insert it into a database field (text) so I can read the results, it just comes out blank.

 

I have the query at the bottom of the file after the functions.

[DarkWater]

We'd need to see the whole file.