(PHP 7)
Gets the specified return type of a function
public ReflectionType ReflectionFunctionAbstract::getReturnType ( void )
Gets the specified return type of a reflected function.
Returns:
Returns a ReflectionType object if a return type is specified, NULL otherwise.
Examples:
ReflectionFunctionAbstract::getReturnType() example
<?php
function to_int($param) : int {
return (int) $param;
}
$reflection1 = new ReflectionFunction('to_int');
echo $reflection1->getReturnType();
The above example will output:
int
Usage on built-in functions
<?php
$reflection2 = new ReflectionFunction('array_merge');
var_dump($reflection2->getReturnType());
The above example will output:
null
See also:
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