Switching between array value and key

[StormS]

I have a minor problem which I guess there are a very easy fix to.

I find some results in several different loops. In this part of the code I need to find a max() based on the price, ( the price_array is found by it's position in an earlier loop, and I need the position of the found max() further in the code.)

// $Source = price
// $pos2_value = position

$mec =  $Source[$pos2_value]; 	
$i=max( $i , $mec);

What I need to do is to convert the found result of $i back to its array position.

regs

[laserlight]

You could write your own function to find the max, or you could use [man]array_search/man with the value obtained by max().

[StormS]

Thx for the answer LaserLight,

Actually I had tried with the array search before posting, but I must be doing something wrong....

// $Source = price 
// $pos2_value = position 

$mec =  $Source[$pos2_value];      

$i=max( $i , $mec); 

$p = array_keys($mec); // flip the position
$key = array_search($i, $p); // search and match
echo $key;

I guess I'm too tired to think straight...

Regs

[laserlight]

You should apply array_search() on the array itself, not on an array of keys.

[StormS]

My you please show by code LaserLight ?

I'm tired of fooling around.... and as you know it is allways close... but not close enough

regs

[laserlight]

I cant provide an example using your code as it simply isnt clear to me what the variables actually are, sorry.

[StormS]

Hi again,

The variables are as said in all previous code samples:

$pos2_value // holds the position
$Source // holds the price info

In the loop in question I narrow down the number of results pos2_value, but I still need to extract the max value among these...

To get the value I like I need to get the max from the price and not it's position.

$mec =  $Source[$pos2_value]; // enable the max search to price info
$i=max( $i , $mec); // finding the actual max I like

So far everything is good and the value found is the value I like to get....

Now, I need to get the back to using the position since this essential for the rest of the script...

So I need to equal the found $i with the position...

$new_i = $pos2_value +++ // of the the $i found in the max search... ;

I just feel blank and empty to night, and not able to solve this simple issue...

regs

[laserlight]

$key = array_search($i, $mec);

[StormS]

Your a fast responder LaserLight 🙂

If that's you on the picture you are looking great as well.... but

$mec =  $Source[$pos2_value];

$i=max( $i , $mec);
$key = array_search($i, $mec); 
echo "-> $key <-";

Returns nothing.... Tried that several times allready....

[laserlight]

That wouldnt work, yeah.

Here are my assumptions:
$Source is an array containing scalar values.
$pos2_value is some numeric index.
$mec is an element in $Source that is tested with $i.
$i is some scalar value that exists in $Source, but whose position is not known.

Therefore you should use
$key = array_search($i, $Source);

[StormS]

🙂

I tried that as well... but probably with an error elsewere... because now it works 🙂

You know.... 800 lines of code and this little part takes 3 hours....

Damn.....

This is one of days where the computer should be shut down....

But you saved the day LaserLight with your bright and shiny smile and touchy code....

thx