PHP

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.";

?>

in_array Associative Array PHP

$arr = array('lang1' => 'php','lang2' => 'java','lang3' => 'python');

if ( in_array( 'java', $arr ) ) {

  echo 'exists';

}else{

  echo 'not exists';

}

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'])); // true

php associative array

<?php
$arr = array('fruit' => 'mango', 'vegetable' => 'tomato', 'thing' => 'bag');
echo $arr['fruit']
/*OUTPUT
mango*/
?>

php associative array

<?php
$arr = array('fruit' => 'mango', 'vegetable' => 'tomato', 'thing' => 'bag');
echo $arr['fruit'];
/*OUTPUT
mango*/
?>

php associative array

<?php
$arr = array('fruit' => 'mango', 'vegetable' => 'tomato', 'thing' => 'bag');
echo $arr['fruit']
/*OUTPUT
*/mango
?>

php associative array

<?php
$arr = array('fruit' => 'mango', 'vegetable' => 'tomato', 'thing' => 'bag');
echo $arr['fruit'];
/*OUTPUT
mango*/
?>

php associative array

<?php
$arr = array('fruit' => 'mango', 'vegetable' => 'tomato', 'thing' => 'bag');
echo $arr['fruit']
/*OUTPUT
mango*/
?>

PHP Associative Array

Array
(
    [Ahmed] => Rofy
    [Abdallah] => Oda
    [Michel] => Mic
    [Yahia] => ENG
)

php associative array

Array
(
    [email] => abeermanchanda00@gmail.com
    [password1] => chess
    [passcheck1] => on
    [submit] => Login
)

php associative array

<?php
$arr = array('fruit' => 'mango', 'vegetable' => 'tomato', 'thing' => 'bag');
echo $arr[1]
//OUTPUT
//mango
?>