PHP Arrays Which function can be used to move the pointer to the previous array position? before() previous() prev() last() before() previous() prev() last() ANSWER DOWNLOAD EXAMIANS APP
PHP Arrays What will be the output of the following PHP code?$face = array ("A", "J", "Q", "K");$number = array ("2","3","4", "5", "6", "7", "8", "9", "10");$cards = array_merge ($face, $number);print_r ($cards); Array ( [0] => 2 [1] => 3 [2] => 4 [3] => 5 [4] => 6 [5] => 7 [6] => 8 [7] => 9 [8] => 10 [9] => A [10] => J [11] => Q [12] => K ) Array ( [0] => A [1] => J [2] => Q [3] => K [4] => 2 [5] => 3 [6] => 4 [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 ) Array ( [0] => A [1] => 2 [2] => J [3] => 3 [4] => Q [5] => 4 [6] => K [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 ) Error Array ( [0] => 2 [1] => 3 [2] => 4 [3] => 5 [4] => 6 [5] => 7 [6] => 8 [7] => 9 [8] => 10 [9] => A [10] => J [11] => Q [12] => K ) Array ( [0] => A [1] => J [2] => Q [3] => K [4] => 2 [5] => 3 [6] => 4 [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 ) Array ( [0] => A [1] => 2 [2] => J [3] => 3 [4] => Q [5] => 4 [6] => K [7] => 5 [8] => 6 [9] => 7 [10] => 8 [11] => 9 [12] => 10 ) Error ANSWER DOWNLOAD EXAMIANS APP
PHP Arrays Array values are keyed by ______ values (called indexed arrays) or using ______ values (called associative arrays). Of course, these key methods can be combined as well. Integer, string Float, string Positive number, negative number Even number, string String, Boolean Integer, string Float, string Positive number, negative number Even number, string String, Boolean ANSWER DOWNLOAD EXAMIANS APP
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] => red [b] => green [c] => blue [d] => yellow ) Array ( [a] => a [b] => b [c] => c [d] => d ) Array ( [red] => red [green] => green [blue] => blue [yellow] => yellow ) Array ( [red] => a [green] => b [blue] => c [yellow] => d ) Array ( [a] => red [b] => green [c] => blue [d] => yellow ) Array ( [a] => a [b] => b [c] => c [d] => d ) Array ( [red] => red [green] => green [blue] => blue [yellow] => yellow ) ANSWER DOWNLOAD EXAMIANS APP
PHP Arrays What will be the output of the following PHP code?$fruits = array ("apple", "mango", "peach", "pear", "orange");$subset = array_slice ($fruits, 2);print_r ($subset); Array ( [0] => peach [1] => pear [2] => orange ) Array ( [0] => peach ) Array ( [0] => apple [1] => mango ) Array ( [0] => apple [1] => mango [2] => peach ) Array ( [0] => peach [1] => pear [2] => orange ) Array ( [0] => peach ) Array ( [0] => apple [1] => mango ) Array ( [0] => apple [1] => mango [2] => peach ) ANSWER DOWNLOAD EXAMIANS APP
PHP Arrays Absent any actual need for choosing one method over the other, does passing arrays by value to a read-only function reduce performance compared to passing them by reference? Yes, because PHP must monitor the execution of the function to determine if changes are made to the array. Yes, but only if the function modifies the contents of the array. Yes, but only if the array is large. Yes, because the interpreter must always create a copy of the array before passing it to the function. No Yes, because PHP must monitor the execution of the function to determine if changes are made to the array. Yes, but only if the function modifies the contents of the array. Yes, but only if the array is large. Yes, because the interpreter must always create a copy of the array before passing it to the function. No ANSWER DOWNLOAD EXAMIANS APP
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