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runkit Functions
PHP Manual

runkit_return_value_used

(PECL runkit >= 0.8.0)

runkit_return_value_usedDetermines if the current functions return value will be used

Description

bool runkit_return_value_used ( void )

Return Values

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

Examples

Example #1 runkit_return_value_used() example

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

foo();
$f foo();
?>

The above example will output:

bool(false)
bool(true)


runkit Functions
PHP Manual