(PECL runkit >= 0.8.0)
Determines if the current functions return value will be used
bool runkit_return_value_used ( void )
Returns:
Returns TRUE if the function's return value is used by the calling scope, otherwise FALSE
Examples:
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)
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