Example 1: common array methods php
$colors = array("blue","green","red");
//delete element in array by value "green"
if (($key = array_search("green", $colors)) !== false) {
unset($colors[$key]);
}
Example 2: common array methods php
sizeof($arr) //returns the size of elements in the array
is_array($arr) // returns true if $arr is an array and false otherwise
in_array($var, $arr) // check if $var is in the array $arr
print_r($arr) // prints the complete representation of the array
array_merge($arr1, $arr2) //combines $arr1 and $arr2 into a single array
array_values($arr) //store all the values into a new array without the keys but only the values
array_keys($arr) // returns only the keys inside an array
array_pop($arr) // removes the last element of the array
array_push($arr, $val) // pushes $val to the end of array
array_shift($arr) // removes the first element in the array $arr
sort($arr) // sorts an array in an ascending order
/*Other sorting methods are:
-asort()
-arsort()
-ksort()
-krsort()
-rsort()
*/
array_map('function_name', $arr) // passes each value in the array inside the fuction and do the operation on the array data
array_flip($arr) //This function interchange the keys and the values of a PHP associative array.
array_reverse($arr) //This function is used to reverse the order of elements
array_rand($arr) //randomly pick an element from the array
array_slice($arr, $offset, $length)//This function is used to create a subset of any array
Example 3: common array methods php
if (count($arr) > 1) {
....
}
Example 4: common array methods php
$key_of_max_value = array_search(max($arrCompare),$arrCompare);
Example 5: common array methods php
print_r(deep_delete_keys($arr,'country'));
function deep_delete_keys($arr, $keys) {
if (!is_array($keys)) $keys = array($keys);
$filteredArr = array_diff_key( $arr, array_flip( $keys ) );
foreach ($filteredArr as &$val) {
if (is_array($val)) {
$val = deep_delete_keys($val, $keys);
}
}
return $filteredArr;
}
Example 6: common array methods php
const triplets = (arr1,arr2) => {
let score1 = 0;
let score2 = 0;
let resultArr = [0,0]
for (let i = 0; i < arr1.length; i++){
if(arr1[i] === arr2[i]) {
resultArr[0] = score1
resultArr[1] = score2
} else if (arr1[i] > arr2[i]) {
score1++
resultArr[0] = score1
} else if (arr1[i] < arr2[i]) {
score2++
resultArr[1] = score2
}
}
return resultArr
}
Example 7: common array methods php
"bar",
42 => 24,
"multi" => array(
"dimensional" => array(
"array" => "foo"
)
)
);
var_dump($array["foo"]);
var_dump($array[42]);
var_dump($array["multi"]["dimensional"]["array"]);
?>
Example 8: common array methods php
$array = ['cheese', 'ham', 'potato'];
var_dump($array);
Example 9: common array methods php
$arrRoom[] = array("RoomCode" => "Deluxe",
"Rates" => array ( array(
"BoardCode" => "RO",
"Price" => 100)
));
$arrRoom[] = array("RoomCode" => "Standard",
"Rates" => array ( array(
"BoardCode" => "RO",
"Price" => 100)
));
$arrRoom[] = array("RoomCode" => "Deluxe",
"Rates" => array (array(
"BoardCode" => "RO",
"Price" => 200)
));
foreach($arrRoom as $room)
{
foreach($room['Rates'] as $rates)
{
$nRooms[$room['RoomCode']][$rates['BoardCode']][] = array("RoomCode" => $room['RoomCode'],
"MealCode" => $rates['BoardCode'],
"Price" => $rates['Price']);
}
}
echo "\n ==== Output in Json Format ==== \n";
{
"Deluxe": {
"RO": [
{
"RoomCode": "Deluxe",
"MealCode": "RO",
"Price": 100
},
{
"RoomCode": "Deluxe",
"MealCode": "RO",
"Price": 200
}
]
},
"Standard": {
"RO": [
{
"RoomCode": "Standard",
"MealCode": "RO",
"Price": 100
}
]
}
}