Array manipulations

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Tue Jan 16 2024 15:17:37 GMT+0000 (Coordinated Universal Time)

Saved by @KickstartWeb #php

//Les tableaux 
// Opérateurs + 
$a = [1, 2];
$b = [4, 5, 6];

print_r($a + $b); //Output = 1, 2, 6 
//Prends la valeur du tableaux de droite et si pas d'index prends la valeur de gauche

// Opérateurs == ne prends pas en compte l'ordre
// Opérateurs === prends en compte l'ordre

// Spread operator :
print_r([...$a, ...$b]); // [1, 2, 4, 5, 6]
// Le tableaux n'existe plus et on étend les valeurs 

//&$variable Récupère l'adresse mémoire d'une variable

// Assigner une valeur à un tableaux :
// Ajouter une valeur à l'index suivant
$arr = [1];
$arr[] = 2; //Output = [1, 2]
// Equivalence avec le spread :
$arr = [...$arr, 3]; // Assigne un nouveau tableau et spread l'ancien en assignant une nouvelle valeur
$arr = [-1, ...$arr]; //Ajoute une valeur au début
array_push($arr, 4);


// Return a random value
$arr = ['orrange', 'blue', 'yellow'];
$value = array_rand($arr);
echo $arr[$value];

// Remove duplicates
$arr2 = ['test', 'test', 1, 2, 3];
$res = array_unique($arr2);

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