Associative array in 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['Samy'] . " years old.";
?>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 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*/
?>associative array php
// Associative Array in PHP
/******** ARRAY TYPES ************************************************
There are basically 03 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
***********************************************************************/
//EXAMPLE
//This is the second one - Associative arrays
$age = array("Peter"=>"35", "Naveen"=>"37", "Amit"=>"43");
echo "Mr.Samy is " . $age['Peter'] . " years old.";Copyright © 2021 Codeinu
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