PHP Arrays Which array function checks if the specified key exists in the array? array_key_exist() array_keys_exists() arrays_key_exists() array_key_exists() array_key_exist() array_keys_exists() arrays_key_exists() array_key_exists() 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 array is large. Yes, because the interpreter must always create a copy of the array before passing it to the function. No Yes, but only if the function modifies the contents of the array. Yes, because PHP must monitor the execution of the function to determine if changes are made to 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, but only if the function modifies the contents of the array. ANSWER DOWNLOAD EXAMIANS APP
PHP Arrays What will be the output of the following PHP code ?$a = array("a" => "Jaguar", "b" => "Land Rover", "c" => "Audi", "d" => "Maseratti");echo array_search("Audi", $a); a d c b a d c b ANSWER DOWNLOAD EXAMIANS APP
PHP Arrays What will be the output of the following PHP code?$a1 = array("a" => "red", "b" => "green", "c" => "blue", "d" => "yellow");$a2 = array("e" => "red", "f" => "green", "g" => "blue", "h" => "orange");$a3 = array("i" => "orange");$a4 = array_combine($a2, $a3);$result = array_diff($a4, $a2);print_r($result); Array ( [h] => orange ) Array ( [i] => orange ) Array ( [d] => yellow [h] => orange ) Array ( [d] => yellow ) Array ( [h] => orange ) Array ( [i] => orange ) Array ( [d] => yellow [h] => orange ) Array ( [d] => yellow ) ANSWER DOWNLOAD EXAMIANS APP
PHP Arrays What will be the output of the following PHP code?$names = array("Sam", "Bob", "Jack");echo $names[0] . "is the brother of " . $names[1] . " and " . $names[1] . ".".$brother; Error Sam is the brother of Bob and Bob) $brother Sam is the brother of Bob and Bob) $brother Error Sam is the brother of Bob and Bob) $brother Sam is the brother of Bob and Bob) $brother ANSWER DOWNLOAD EXAMIANS APP
PHP Arrays Assume you would like to sort an array in ascending order by value while preserving key associations. Which of the following PHP sorting functions would you use? ksort() usort() sort() asort() krsort() ksort() usort() sort() asort() krsort() ANSWER DOWNLOAD EXAMIANS APP
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