PHP Arrays
What will be the output of the following php code?
$states = array("karnataka" => array( "population" => "11,35,000", "captial" => "Bangalore"),"Tamil Nadu" => array( "population" => "17,90,000","captial" => "Chennai") );
echo $states["karnataka"]["population"];

population 11,35,000
karnataka population
11,35,000
karnataka 11,35,000

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PHP Arrays
What will be the output of the following PHP code?
$a1 = array("red", "green");
$a2 = array("blue", "yellow");
print_r(array_merge($a1, $a2));

Array ( [0] => red [1] => green [2] => blue [3] => yellow )
Array ( [0] => red [1] => green)
Array ( [0] => blue [1] => yellow )
Array ( [0] => blue [1] => yellow [2] => red [3] => green )

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PHP Arrays
There are three different kind of arrays:

Numeric array, String array, Multidimensional array
Numeric array, Associative array, Dimensional array
Const array, Associative array, Multidimensional array
Numeric array, Associative array, Multidimensional array

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