php array merge for associative arrays
<?php
$array1 = array('key1' => 'test1', 'key2' => 'test2');
$array2 = array('key3' => 'test3', 'key4' => 'test4');
$resultArray = array_merge($array1, $array2);
// If you have numeric or numeric like keys, array_merge will
// reset the keys to 0 and start numbering from there
$resultArray = $array1 + $array2;
// Using the addition operator will allow you to preserve your keys,
// however any duplicate keys will be ignored.php array is associative
function isAssoc(array $arr)
{
if (array() === $arr) return false;
return array_keys($arr) !== range(0, count($arr) - 1);
}
var_dump(isAssoc(['a', 'b', 'c'])); // false
var_dump(isAssoc(["0" => 'a', "1" => 'b', "2" => 'c'])); // false
var_dump(isAssoc(["1" => 'a', "0" => 'b', "2" => 'c'])); // true
var_dump(isAssoc(["a" => 'a', "b" => 'b', "c" => 'c'])); // truehow to create an associative array in php
<?php
$associativeArray = [
"carOne" => "BMW",
"carTwo" => "VW",
"carThree" => "Mercedes"
];
echo $associativeArray["carTwo"] . " Is a german brand";
?>array associativo php
<?php
/*
There are 3 Types of array in php
1. Indexed arrays - Arrays with a numeric index
2. Associative arrays - Arrays with named keys
3. Multidimensional arrays - Arrays containing one or more arrays
This is the second one - Associative arrays
*/
$age = array("Samy"=>"35", "Naveen"=>"37", "Amit"=>"43");
echo "Mr.Samy is " . $age['Peter'] . " years old.";
?>how to create associative array in php
<?php
/*
there are three type of array
1 - Indexed array
*/
$a = array('a','b','c');
$b = ['a','b','c'];
/*
2 - Associative array
*/
$c = array(
'keyOne'=>'valueOne',
'keyTwo'=>'valueTwo'
);
$d = [
'keyOne'=>'valueOne',
'keyTwo'=>'valueTwo'
];
/*
3 - Multidimensional array
*/
$c = array(
'keyOne'=>array('a','b','c'),
'keyTwo'=>array('a'=>'1','b'=>'2')
);
$d = [
'keyOne'=>['a','b','c'],
'keyTwo'=>['a'=>'1','b'=>'2']
];
?>php associative array
<?php
$arr = array('fruit' => 'mango', 'vegetable' => 'tomato', 'thing' => 'bag');
echo $arr['fruit']
/*OUTPUT
*/mango
?>Copyright © 2021 Codeinu
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