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8.2

Need regex for PHP sort function

Asked by Lupi05 in PHP Scripting Language, Regular Expressions

Tags: PHP

Hi,

in PHP, I need to sort a twodimensional array $filteredresults:

The function compare that I attached below works and I'm using it.
The problem is that I am sorting the array by field [3] which is a price (currency EURO ¬).

The prices look like
¬ 20,99
¬ 10,50
¬ 132,20

When the array is created this is what I used for field [3]
"€ " . number_format($price, 2, ',', '');

So this means the EURO currency symbol (€) followed by one whitespace, then the price, using a comma as decimal point and no seperator for thousands.

Thus, I need a regex which strips everything but the digits and replaces the decimal comma with a decimal point to do proper sorting.

I'd prefer it if the change wasn't permanent, for instance if we could just add something to the compare function below.

for instance:
if ($x[3].regex(blabla)) == $y[3].regex(blabla)) {return 0;}

Thanks for your help.
Cheers, Chris
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function compare($x, $y) {
     if ($x[3] == $y[3]) {return 0;}   
     else if ($x[3] < $y[3])
	return -1;
     else
        return 1;
}
 
usort($filteredresults, "compare");
[+][-]07/18/08 05:40 AM, ID: 22035050Accepted Solution

Your question has an Asker Certified™ answer! Lupi05 verified that this solution worked for them--which means it will likely work for you, too. Click to view the solution free for 30-days now.

About this solution

Zones: PHP Scripting Language, Regular Expressions
Tags: PHP
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Solution Provided By: Lupi05
Participating Experts: 1
Solution Grade: A
 
[+][-]07/17/08 05:29 PM, ID: 22031574Expert Comment

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[+][-]07/18/08 02:46 AM, ID: 22034110Author Comment

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