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(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
is_infinite — Vérifie si un nombre flottant est infini
Retourne si le num
donné est soit INF
ou -INF
, sinon, false
.
Exemple #1 Exemple de is_infinite()
<?php
$inf = 1e308 * 2;
var_dump($inf, is_infinite($inf));
$negative_inf = -$inf;
var_dump($negative_inf, is_infinite($negative_inf));
?>
L'exemple ci-dessus va afficher :
float(INF) bool(true) float(-INF) bool(true)