PHP Arrays
Which function returns an array consisting of associative key/value pairs?

array_count()
count()
array_count_values()
count_values()

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PHP Arrays
What will be the output of the following PHP code?
$fname = array("Peter", "Ben", "Joe");
$age = array("35", "37", "43");
$c = array_combine($fname, $age);
print_r($c);

Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )
Array ( 35 37 43 )
Array ( “[Peter] => 35” “[Ben] => 37” “[Joe] => 43” )
Array ( Peter Ben Joe )

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PHP Arrays
What will be the output of the following PHP code ?
$a1 = array("a" => "red", "b" => "green", "c" => "blue", "d" => "yellow");
$a2 = array("e" => "red","f" => "green", "g" => "blue");
$result = array_intersect($a1, $a2);
print_r($result);

Array ( [e] => red [f] => green [g] => blue )
Array ( [a] => red [b] => green [c] => blue [d] => yellow )
Array ( [a] => red [b] => green [c] => blue [d] => yellow [e] => red [f] => green [g] => blue )
Array ( [a] => red [b] => green [c] => blue )

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PHP Arrays
What will be the output of the following PHP code ?
$a1 = array("a" => "red", "b" => "green", "c" => "blue", "d" => "yellow");
$result = array_flip($a1);
print_r($result);

Array ( [red] => a [green] => b [blue] => c [yellow] => d )
Array ( [a] => a [b] => b [c] => c [d] => d )
Array ( [red] => red [green] => green [blue] => blue [yellow] => yellow )
Array ( [a] => red [b] => green [c] => blue [d] => yellow )

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