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Merge branch 'MDL-30167' of git://github.com/timhunt/moodle

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This commit is contained in:
Eloy Lafuente (stronk7) 2011-11-17 00:29:18 +01:00
commit b22dc5374c
1 changed files with 4 additions and 3 deletions
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7
question/type/numerical/questiontype.php
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@ -641,16 +641,17 @@ class qtype_numerical_answer_processor {
$numberstring = $matches[0];
if ($this->unitsbefore) {
$unit = substr($response, 0, -strlen($numberstring));
// substr returns false when it means '', so cast back to string.
$unit = (string) substr($response, 0, -strlen($numberstring));
} else {
$unit = substr($response, strlen($numberstring));
$unit = (string) substr($response, strlen($numberstring));
}
if (!is_null($separateunit)) {
$unit = $separateunit;
}
if ($unit && $this->is_known_unit($unit)) {
if ($this->is_known_unit($unit)) {
$multiplier = 1 / $this->units[$unit];
} else {
$multiplier = null;