Array
(
    [0] => 800
    [1] => 1492
    [2] => 1515
    [3] => 1789
)
<hr />Le tableau $tab a maintenant 6 éléments <br>Array
(
    [0] => 500
    [1] => 732
    [2] => 800
    [3] => 1492
    [4] => 1515
    [5] => 1789
)
<hr />Le tableau $tab a maintenant 9 éléments <br>Array
(
    [0] => 500
    [1] => 732
    [2] => 800
    [3] => 1492
    [4] => 1515
    [5] => 1789
    [6] => 1870
    [7] => 1914
    [8] => 1918
)
<hr />Le tableau $tab a perdu l'élément 1918 <br>Array
(
    [0] => 500
    [1] => 732
    [2] => 800
    [3] => 1492
    [4] => 1515
    [5] => 1789
    [6] => 1870
    [7] => 1914
)
<hr />Le tableau $tab a perdu l'élément 500 <br>Array
(
    [0] => 732
    [1] => 800
    [2] => 1492
    [3] => 1515
    [4] => 1789
    [5] => 1870
    [6] => 1914
)
<hr />L'élément d'indice 4 a été supprimé <br>Array
(
    [0] => 732
    [1] => 800
    [2] => 1492
    [3] => 1515
    [5] => 1870
    [6] => 1914
)