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is_resource

is_resource

Finds whether a variable is a resource

bool **is_resource** mixed $value

Finds whether the given variable is a . resource

valueThe variable being evaluated.

Returns true if is a , false otherwise. value``resource

Voorbeeld: example

<?php

$handle = fopen("php://stdout", "w");
if (is_resource($handle)) {
    echo '$handle is a resource';
}

?>
$handle is a resource

Opmerking: > is not a strict type-checking method: it will return false if is a resource variable that has been closed. is_resource``value

The resource-type documentationget_resource_type