[PHP] defined()

Mar 24, 2018 0 Comment By Juri Rudi

defined() (funzione PHP) verifica se una costante esista. Restituisce un valore booleano.

tips&tricks

Sintassi

defined($nome_costante)

parametro	descrizione
$nome_costante	Il nome della costante da processare

Esempi

define("GESTIOLEX", "il futuro della professione");
echo defined("GESTIOLEX"); // true

Contenuti correlati

CSS
HTML
JavaScript
jQuery
PHP
- const()
- constant()
- define()
- function_exists()
- get_defined_constants()
SQL
WORDPRESS

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Juri Rudi

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