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Full Discussion: Absolute value
Top Forums Shell Programming and Scripting Absolute value Post 302148918 by vgersh99 on Tuesday 4th of December 2007 06:26:23 AM
Old 12-04-2007
Quote:
Originally Posted by ahjiefreak
Hi vgersh99,

I saw this post and I wonder if I have an associative array for calculate an operation; how abs would work in this case.
sure, why not!
Quote:
Originally Posted by ahjiefreak
Assume;

I have
count[$1]=$2-$1;

If I apply the one you suggested in earlier post,

can it be turned to;


count[$1]= ($4-$5)*(0.05);
if(count[$1]>=0){
count[$1]=count[$1];}
else
count[$1]=0-count[$1];
Code:
   count[$1]= ($4-$5)*(0.05)
   if(count[$1]<0) count[$1]=0-count[$1]

Quote:
Originally Posted by ahjiefreak

Please advise. Really hope to hear from you soon! Thanks

-Jason
 

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COUNT(3)								 1								  COUNT(3)

count - Count all elements in an array, or something in an object

SYNOPSIS
int count (mixed $array_or_countable, [int $mode = COUNT_NORMAL]) DESCRIPTION
Counts all elements in an array, or something in an object. For objects, if you have SPL installed, you can hook into count(3) by implementing interface Countable. The interface has exactly one method, Countable::count, which returns the return value for the count(3) function. Please see the Array section of the manual for a detailed explanation of how arrays are implemented and used in PHP. PARAMETERS
o $array_or_countable - An array or Countable object. o $mode - If the optional $mode parameter is set to COUNT_RECURSIVE (or 1), count(3) will recursively count the array. This is particu- larly useful for counting all the elements of a multidimensional array. Caution count(3) can detect recursion to avoid an infinite loop, but will emit an E_WARNING every time it does (in case the array contains itself more than once) and return a count higher than may be expected. RETURN VALUES
Returns the number of elements in $array_or_countable. If the parameter is not an array or not an object with implemented Countable inter- face, 1 will be returned. There is one exception, if $array_or_countable is NULL, 0 will be returned. Caution count(3) may return 0 for a variable that isn't set, but it may also return 0 for a variable that has been initialized with an empty array. Use isset(3) to test if a variable is set. EXAMPLES
Example #1 count(3) example <?php $a[0] = 1; $a[1] = 3; $a[2] = 5; $result = count($a); // $result == 3 $b[0] = 7; $b[5] = 9; $b[10] = 11; $result = count($b); // $result == 3 $result = count(null); // $result == 0 $result = count(false); // $result == 1 ?> Example #2 Recursive count(3) example <?php $food = array('fruits' => array('orange', 'banana', 'apple'), 'veggie' => array('carrot', 'collard', 'pea')); // recursive count echo count($food, COUNT_RECURSIVE); // output 8 // normal count echo count($food); // output 2 ?> SEE ALSO
is_array(3), isset(3), strlen(3). PHP Documentation Group COUNT(3)
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