IS_RESOURCE(3) 1 IS_RESOURCE(3)
is_resource - Finds whether a variable is a resource
SYNOPSIS
bool is_resource (mixed $var)
DESCRIPTION
Finds whether the given variable is a resource.
PARAMETERS
o $var
- The variable being evaluated.
RETURN VALUES
Returns TRUE if $var is a resource, FALSE otherwise.
EXAMPLES
Example #1
is_resource(3) example
<?php
$db_link = @mysql_connect('localhost', 'mysql_user', 'mysql_pass');
if (!is_resource($db_link)) {
die('Can't connect : ' . mysql_error());
}
?>
NOTES
Note
is_resource(3) is not a strict type-checking method: it will return FALSE if $var is a resource variable that has been closed.
SEE ALSO
The resource-type documentation, get_resource_type(3).
PHP Documentation Group IS_RESOURCE(3)
