I have this $combo array :
Array ( [0] => 11.3 [1] => 1.3 [2] => 1.3 [3] => 1.3 ) then I try to process that array using foreach loop :
foreach ($combo as $value) { $key = array_keys($combo, $value); } the $key return unexpected on key 1, 2, 3 because I have duplicate value : 1.3
I want to have exact array key for each value. how to do this?
The foreach construct provides an easy way to iterate over arrays. foreach works only on arrays and objects, and will issue an error when you try to use it on a variable with a different data type or an uninitialized variable.
There are two syntaxes:
foreach (array_expression as $value) statement foreach (array_expression as $key => $value) statement
So you can do:
foreach ($combo as $key => $value) { echo $key; //0, 1, 2, 3 ... echo $value; //11.3, 1.3, 1.3, 1.3 ... } 
foreach ($combo as $key => $value)