array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'de', ), 'this' => array ( 0 => 'function.filter-has-var.php', 1 => 'filter_has_var', ), 'up' => array ( 0 => 'ref.filter.php', 1 => 'Filter-Funktionen', ), 'prev' => array ( 0 => 'ref.filter.php', 1 => 'Filter-Funktionen', ), 'next' => array ( 0 => 'function.filter-id.php', 1 => 'filter_id', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'de', 'path' => 'reference/filter/functions/filter-has-var.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
filter_has_var — Prüft, ob eine Variable des angegebenen Typs existiert
input_type
Einer von INPUT_GET
, INPUT_POST
,
INPUT_COOKIE
, INPUT_SERVER
oder
INPUT_ENV
.
var_name
Name der Variablen.