runkit_return_value_used

(PECL runkit >= 0.8.0)

runkit_return_value_used — Determines if the current functions return value will be used

bool runkit_return_value_used ( void )

Returns TRUE if the function's return value is used by the calling scope, otherwise FALSE

Example #1 runkit_return_value_used() example


<?php
function foo() {
  var_dump(runkit_return_value_used());
}

foo();
$f = foo();
?>

以上例程会输出：

bool(false)
bool(true)