Strange parse error with method call

[Jan Pieter Kunst]

Dear people,

How is it possible that this gives a parse error:
if (! empty($this->zoekopdracht->get_gezochte_v raagnummers()))
$vraagnummers_b ijhouden = TRUE;

-> Parse error: parse error, unexpected '(', expecting ')'
And this does not:
$a = $this->zoekopdracht->get_gezochte_v raagnummers();
if (! empty($a))
$vraagnummers_b ijhouden = TRUE;
As far as I can see, these two should be completely equivalent.

Any ideas?
Thanks,
Jan Pieter Kunst

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[Pedro Graca]

Jan Pieter Kunst wrote:

How is it possible that this gives a parse error:
if (! empty($this->zoekopdracht->get_gezochte_v raagnummers()))
$vraagnummers_b ijhouden = TRUE;

-> Parse error: parse error, unexpected '(', expecting ')'
And this does not:
$a = $this->zoekopdracht->get_gezochte_v raagnummers();
if (! empty($a))
$vraagnummers_b ijhouden = TRUE;
As far as I can see, these two should be completely equivalent.

Any ideas?

Funny :)

Seems like you can only test variables for emptiness.
.... It makes sense in a way, too
if (empty(rand())) <== error
$a = rand(); if (empty($a)) <== ok

if (empty(3+7)) <== error
$a = 3+7; if (empty($a)) <== ok

$a='b'; $b='a'; if (empty($a.$b)) <== error
$a='b'; $b='a'; $c=$a.$b; if (empty($c)) <== ok

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